oppiplaas 14

2023

VOLUME

14

oppiplaas

’N VOLLEDIGE JOERNAAL VAN DIE NUVANCE GROENTESAAD-PRODUKREEKS A COMPREHENSIVE JOURNAL OF THE NUVANCE VEGETABLE SEED PRODUCT RANGE

| www.nuvance.co.za |

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NUUS | NEWS

BEDRYF | INDUSTRY

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bejo 'seed quality tour'

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lone oak seedlings

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onion breeding at de groot en slot

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future seedlings @ renca boerdery

NAVORSING | RESEARCH

PRODUKTE | PRODUCTS

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anthracnose on peppers

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berlin* = yield

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bees and bejo: natural partners

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lugano* in limpopo

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grafted tomatoes

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maragogi at mamogale

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weed control in plastic mulch systems

index

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editorial Editor Dr Q Muhl T: 010 534 8147 E: q.muhl@nuvance.co.za

Layout and design Y Cloete T: 082 5787 547 E: yvonne@saltstudio.biz

Publisher Nuvance (Pty) Ltd

PRODUKTE | PRODUCTS

STREEKSNUUS | REGIONAL NEWS

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markleier megaton

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nuvance hoofkantoor

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stalwart “1609”

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welcoming: eunice burger

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plant rouja* tot jou eie voordeel

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welcoming: jaco coetzee

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rouja* rewards grower

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clubroot resistant zaragoza*

VERKOPE | SALES

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verkoopspan | sales team

Disclaimer: The information in this newsletter is presented in good faith and Nuvance (Pty) Ltd. does not accept any legal liability in terms thereof. Disease resistances referred to in this newsletter are indicative of the cultivar’s tolerance, not its resistance. Varieties listed throughout this newsletter, marked with *, indicate that the cultivar is currently undergoing trials and will thereafter be considered to be submitted for registration. The product information and descriptions in this newsletter are correct at the time of going to press. Pictures displayed in this newsletter only indicate the kind and not the actual specific variety.

advancing beyond the basics seeds | science | service

Maragogi • • • •

Early short-day onion Firm with small root attachment Very thin neck Suitable for the fresh market

Buzios • • • •

Medium short-day onion Well adapted for productions in the Northern Cape Ideal for the fresh market Medium-early cultivar

Hacienda* • • •

Vigorous early intermediate onion Large, uniform, round medium brown bulbs Excellent productivity and great adaptation to the summer growing conditions in Limpopo province (sowing in December)

Itaparica* • • • • •

Early short-day onion suitable for the fresh market Very uniform bulbs of excellent quality Very thin neck to ensure quick drying Deep round shape with straw-brown skins Good range of adaptation

| www.nuvance.co.za |

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bejo 'seed quality tour'

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he new Bejo 'Seed Quality Tour' movie, makes it possible for anyone anywhere in the world to take a look at our Processing Facility in Warmenhuizen, The Netherlands. The film shows the entire process, from sampling upon arrival of the seed, to the moment of delivery.

It is impressive to see the process which Bejo seeds undergo before being sent to customers all over the world as Bejo quality seed. Scan the QR code to see for yourself!

news

onion breeding at de groot en slot

S

ince its establishment in 1955, De Groot en Slot has become a world leader in the development and production of onion seed. Together with their partner Bejo Zaden they have become one of the global leaders in onion breeding and seed production. Onion growers across five continents are increasingly choosing to use De Groot en Slot varieties as they continue to strengthen their market position.

Development at De Groot en Slot and Nuvance is a continuous process which focuses on innovation. The development of any new variety remains a huge investment, both in terms of time and money. It takes on average a period of approximately 16 - 18 years as well as an enormous financial investment to develop a new onion variety. Since growing conditions vary greatly between regions, countries and continents, identifying varieties which can perform under different climatic conditions across various areas is the challenge. De Groot en Slot has an extensive range of varieties with the characteristics that deliver the best results in the climatic zones for which they are bred. Consequently, they are one of the most specialised Allium breeding companies in the world. Currently, De Groot en Slot have several trial sites all over the world including here in South Africa.

EQU AT O R

Very long day Long day Intermediate Short day

PARTNERS IN ALLIUM

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news article by dr quintin muhl

Nuvance has been assisting De Groot en Slot with their onion breeding trials in South Africa since 2008, spread across trial sites in Limpopo, the Western and Northern Cape. These trial sites are situated in the main onion production areas, which also allows for the development of varieties under different day lengths.

Each of these trial sites has ±200 individual plots with a different F1 hybrid from various parental crosses.

Besides the climatic adaptability, specific varietal characteristics are also often desirable, such as resistance to powdery mildew, Fusarium and pink root for instance. Since De Groot en Slot is exclusively breeding onions and with that only targeting a limited number of cultivars they are able to excel in their

development thereof. Breeding successful varieties is perhaps the most visible element of De Groot en Slot’s activities but producing quality seed is equally important. Because of the high-quality standard, an advanced and long post-harvest process of cleaning, grading and seed treatment is the foundation for top quality seed.

After 15 years of trials across South Africa, Nuvance has successfully launched varieties such as Maragogi, Itaparica*, Buzios and Hacienda*.

These varieties are the result of the collaborative research efforts between Nuvance and De Groot en Slot. With quite a few new varieties in the pipeline and promising trial results, you can look forward to more exciting new varieties being launched soon.

anthracnose on peppers

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nthracnose is a disease of the foliage, stems and or fruits of host plants. Anthracnose causes twigs or branches to die back and fruit to be infected with black lesions (blight). The common name for Anthracnose on Capsicum is fruit rot, black spot or ripe rot.

Anthracnose is a fungal disease and can cause economic losses of up to 100% under favourable conditions. Infection occurs between 13 and 26°C and the disease is favoured by wet, humid and warm conditions, thus Anthracnose is more abundant in the tropics and subtropics than in temperate regions.

Anthracnose is caused by a group of fungi within the genus Colletotrichum. The main species associated with peppers are C. acutatum and C. scovillei (part of the C. acutatum group). The visible signs of Anthracnose are caused by the pathogen (Colletotrichum gloeosporiodes). The first signs of the disease are small, slightly sunken, dark yellow spots on the fruit surface. The spots darken, enlarge and merge during wet weather or when humidity is high.

Pink spore masses of fungal spores form on the spots that later turn black.

Host plants for Colletotrichum species can vary from Capsicum (eg., bell pepper, chilli), vegetables (eg., eggplant, tomato, pumpkin, cucurbits, onions, spinach), root crops (eg., yam, potato), fruit trees (eg., papaya, avocado, mango), grasses (eg., maize, wheat, lawn, sugar cane) and legumes (eg., peas, beans, soybeans, lentils).

In short: The lifecycle of Anthracnose disease involves the production of spores on susceptible host plants, dispersal of spores, adhesion onto and penetration of host tissue, development of lesions, formation of new spores and dispersal of the spores.

Pepper plants can become infected at any growth

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research article by anina meyer and olav lange (vegetables by bayer)

stage, even post-harvest. All above-ground parts of the plant are susceptible to infection, but the fruits are most impacted by this disease.

The pathogen (spores) can survive inside or on the surface of seeds. It can also over-winter in soil on infected pepper fruit left in the field or on infected plant material at the end of the production season.

Additionally, crop debris remaining on equipment may serve as an over-wintering source for the disease.

Anthracnose can cause lesions on small, immature fruit as well as mature fruit. Flowers or developing fruit are infected and do not show symptoms until weeks later. Initially, the lesions are small, depressed and circular. Over time they become much larger and develop mats of salmon to pink-coloured spores. The centres of the lesions can range from tan or orange to brown or black. Symptoms initially develop on pepper fruits near the ground and then progress to the higher fruits and are then dispersed to fruits of healthy plants.

C. acutatum conidia can survive in fields until 7 months after the pepper harvest. C. acutatum spores survive better on infected plant material (fruit and plant debris) left on or in the soil. Field observations showed that Anthracnose can survive (although not very well) in the soil for many years. These dormant pathogens play a role as the primary inoculum that attacks new fruits near the ground the following year.

Infected plant debris is not the only source of spores causing pepper anthracnose, but other infected host plants can spread the fungi as well. Currently, there are no commercially available bell or non-bell peppers with known resistance to Anthracnose.

Management of this disease requires an integrated approach that includes preventative practices and control measures. Implementing the following techniques can help prevent losses to Anthracnose:

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Use pathogen-free seeds Rotate crops Do not use overhead irrigation Control weeds and Solanaceae volunteers Work plant debris back into the soil Use black plastic as a mulch on plant rows Use of fungicides

Bayer supplies the pepper seed sold by Nuvance and other seed distributors in South Africa. The seed supplied by Bayer is tested to be free from any pathogens accordingly and conforms to all Phytosanitary requirements (Phytosanitary certificates available on request). Apart from a range of tests that Bayer performs on seed, Anthracnose is tested for the below 3 species of the Colletotrichum genus;

1. Colletotrichum Acutatum 2. Colletotrichum Capsici 3. Colletotrichum Truncatum.

bees and bejo: natural partners Bejo is an international producer of vegetable seeds.

Honeybees are perhaps our most important employees.

We keep our own bees and are internationally active in bee breeding and research. Alongside better vegetable varieties, we also work to improve bee colonies.

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research

B

ees play an important role in the fertilization of plants, including food crops. For a plant to bear fruit or form seeds, the (male) pollen must first make its way to the (female) pistil of the flower.

Some types of plants, such as red beet and spinach, are pollinated by the wind. Others, such as lettuce, are self-pollinating. But many of the plants that are essential for our food supply rely on insects for pollination.

Honey bees: pollination champions

Nature provides plenty of pollinators, including bumblebees and solitary wild bees. But honey bees are pollination champions. They can be so effective because they can be used purposefully and in large numbers. Each hive that a beekeeper places in a field contains a colony of some 20,000 to 40,000 pollinators. Not surprisingly, fruit growers and growers of some fruit vegetables and open field crops work closely with professional beekeepers.

Bejo’s core business makes us uniquely aware of the importance of bees: without pollination, there would be no seeds. We grow seeds in greenhouses and on fields all over the world, so we have tens of thousands of honey bee colonies working for us. “At Bejo, we have our own beekeepers and are active in bee research. That way we can gain more experience

with beekeeping and a greater understanding of bees and pollination," says Youri Draaijer, Coordinator of international seed production research at Bejo. "With our research, we hope to find out more about the typical characteristics of bee colonies and bee types, including foraging zeal, or the willingness to collect nectar, and tendency to swarm or leave the hive. But the main focus of our research is bee health.”

Research and selection to improve bee health

Worldwide, there is an urgent need for more expertise and new developments in this area. This is partly because healthy bees are the best pollinators, and partly because in the past century bee populations have been declining due to bee mortality. The decline in numbers has various causes. One of the biggest problems for the western honey bee is the varroa mite, a parasite that infests hives and weakens or kills bees. Bees can also die of exhaustion in colonies that work too hard, a situation known as winter loss.

Pesticides are also mentioned as a possible cause of population decline.

Feeding and selection

In our research, we look for ways to use food and better beekeeping techniques to develop stronger bee colonies. We are also making progress in

selecting bees with the desired characteristics to start new colonies. Our core activity is the selection and breeding of plants in order to achieve better varieties. We have the same goal with bees. We breed bee colonies and seek to develop types that perform well and thrive.

Safeguarding pollination, now and in the future For Bejo, investing in apiculture is in the company’s own interest. "We need healthy bee colonies to safeguard natural pollination on our production fields, now and in the future,” says John-Pieter Schipper, CEO of Bejo. On the other hand, he adds, Bejo also invests in bees out of a sense of social commitment: “The key role that bees play reminds us that food production depends on nature and the environment.

That confirms us in the vision that we, as a family business, have of sustainability.”

Bejo values a healthy environment and sustainable use of natural resources. With that in mind, we work to discover the best ways to use natural pollination and to improve the health of our bees.

“The key role that bees play reminds us that food production depends on nature and the environment.

That confirms us in the vision that we, as a family business, have of sustainability.”

Exploring nature never stops.

John-Pieter Schipper, Bejo CEO

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success is inindustry the detail seeds | science | service

Megaton •

• •

Excellent winter cabbage with large uniform heads Ideal for the informal market Average head weight of 5 to 8 kg

Chinook* • • •

Specially for coastal areas Large frame and round heads Weight 3, 5 to 7kg depending on population

Excalibur • •

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Ideal for fresh market and bagging Well adapted for the highveld summer and the winter in warmer areas.

Average head weight of 3 to 6 kg

grafted tomatoes

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Scion Rootstock

Figure 1. Grafted tomatoes result from the union of the stems of scion and rootstock seedlings.

Grafted tomatoes can be used to help manage soilborne diseases and the effects of abiotic stress.

rafted tomato seedlings became available in commercial vegetable production in Japan and Korea in the early 1960s, and their commercial use in North America and Europe began in the 1990s.1 Grafted tomatoes were initially used primarily in greenhouse (protected) production; however, grafted seedlings are now used in several production systems, including open-field, high tunnel, low-tech greenhouse, and high-tech glasshouse (soilless cultivation).2,3 The higher cost of grafted seedlings has limited their widespread adoption in some situations. The added cost of using grafted seedlings can be offset by higher yields, increased earliness, the reduced number of plants needed per hectare, a reduced need for fertilisers, and elongated cropping cycles resulting from more vigorous root systems.1

Rootstocks Rootstocks can be intraspecific, where the rootstock and scion belong to the same species, or they can be interspecific, where the rootstock and scion belong to different species or genera. Many of the rootstocks used with tomatoes are interspecific hybrids (ISHs), such as hybrids of the wild Solanum species S. habrochaites and the domesticated tomato S. lycopersicum.4,6 Not all scion/rootstock combinations work equally well in all situations. In a meta-analysis study that evaluated results from 159 publications, yield levels were found to be affected by specific rootstock/ scion pairings, the environment, and the production systems used. A few studies showed minor but significant differences in fruit quality factors, such as acidity, soluble solids, firmness, and taste, with some pairings.4

Grafting procedures Growers can purchase grafted seedlings or create their own from rootstock and scion seedlings.7 The

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research process involves growing the scion and rootstock seedlings, cutting and uniting the scion tops and rootstock bases, and a post-grafting healing period.5 The conditions for both the scion and rootstock seedlings should be optimized to obtain uniform germination and growth. Because rootstock and scion varieties can have different rates of emergence and development, sowing and grafting schedules may need to be adjusted so that both rootstock and scion stem diameters are similar and within the desired range. Growth rates can be adjusted by regulating temperature, light intensity, fertilization, and irrigation.5,7 Grafting is done when stem diameters are between 1.5 and 3.0 mm. Any rootstock suckers should be removed before grafting. Stems are cut with a sharp blade on an angle to increase the area of stem-to-stem contact. Grafting clips are used to align and support the graft union (Figure 2)5,7 Newly grafted seedings should be held in a moist (85 to 95% RH) environment at temperatures between 22° and 29°C for the first 48 to 72 hours. Temperature fluctuations should be minimal, and the relative humidity should not be allowed to reach 100%.

Healing locations should have low light levels for the first few days to reduce water loss. After two to three days, humidity levels should be gradually reduced to around 70%, and light levels should be gradually increased.5

Disease management A primary reason for using grafted tomatoes is to help manage soilborne diseases. Many commercially available rootstocks have resistance genes for several common soilborne pathogens and nematodes.1,5 Most commonly available rootstock varieties have high (HR) resistance to Fusarium wilt, races 1 and 2, usually indicated as Fol:1,2, and a few have resistance to race

3 (Fol:3).4 Resistance is also available for bacterial wilt, Fusarium crown and root rot, Verticillium wilt, and tomato mosaic virus. Some studies have shown that yield levels on grafted plants with high levels of resistance in fields infested with the corresponding pathogens are similar to those of plants grown in fields treated with soil fumigants.4,6

Rootstock/scion combinations adapted to the local conditions should be chosen to address specific production issues.

Many ISH rootstock varieties provide intermediate resistance (IR) to various species of root-knot nematodes (RKN) conferred by genes at the Mi locus. Some forms of resistance prevent colonization and reproduction of RKN on tomato roots, lowering disease levels and pathogen populations. Other forms of resistance reduce symptom expression and help protect yields but do not inhibit the reproduction of nematodes, which can result in increased RKN populations.6,8 It is best if rootstock-based resistance traits are used as a part of an integrated pest management (IPM) program. Integrating resistance with strategies such as crop rotation, soil fumigation, biofumigation, flooding, and soil solarization can help prevent yield losses and the build-up of pathogen populations. The selection of rootstock varieties should be site-specific and based on the pathogen populations present, local growing conditions, and other factors.6

Figure 2. Plastic grafting clips are used to stabilize the graft union until the two stems have joined together.

Effects on production Several studies have evaluated the effects of grafting on tomato yield. To help maximize yield potential, the needs of both the rootstock and scion should be optimized. The effects of grafting on yield are clearly apparent when disease-resistant rootstocks are used where there is disease pressure. Grafting is also used to help increase production in the absence of disease, especially in long-season, protected culture systems.9,10 The non-disease related effects on yield in shorter season, open field systems may not be as consistent. One meta-analysis study of 159

publications found that yields of grafted and nongrafted tomatoes were not significantly different in 65% of the reviewed studies.4 However, this analysis did show that specific rootstock/scion pairings did impact yield potential. The benefits of using grafted plants is most evident in long season protected culture systems. Rootstock varieties with larger root systems are used to sustain long-season (up to nine months) crops with extended harvest periods.9,10 This is one reason that a large percentage of protected culture operations used grafted tomato seedlings.

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research Under protected conditions, grafted tomatoes are being used to help support high fruit yield potential over a long season.

Concerns with grafting In addition to the added cost of grafted seedlings, there are some concerns about using grafted tomato plants. One concern is the increased chance of transmitting seedborne diseases. Because two different plants are used for each seedling planted, the chance of transmitting a seedborne disease is doubled. Also, the over-reliance on a relatively small number of rootstock varieties for managing diseases and nematodes increases the risk of developing resistant-breaking strains of these pathogens.

Growers should carefully evaluate the various risks and benefits of integrating grafted plants into their tomato production operations and understand that rootstock selections should be based on the specific practices used in the operation, desired varieties of scions, and the biotic and abiotic production conditions.6 Factors such as pruning strategies, fertilization, irrigation schedules, and the length of the harvest period also should be considered.

Additional information Performance may vary from location to location and from year to year, as local growing, soil and weather conditions may vary. Growers should evaluate data from multiple locations and years whenever possible and should consider the impacts of these conditions on the grower’s fields. The recommendations in this article are based upon information obtained from the cited sources and should be used as a quick reference for information about vegetable production. The content of this article should not be substituted for the professional opinion of a producer, grower, agronomist, pathologist, and similar professional dealing with vegetable crops.

Sources •

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1 Spano, R., Ferrara, M., Gallitelli, D., and Mascia, T. 2020. The Role of Grafting in the Resistance of Tomato to Viruses. Plants-Basel 9.

2 Thies, J. A. 2021. Grafting for managing vegetable crop pests. Pest Management Science 77:4825-4835.

3 Kyriacou, M. C., Rouphael, Y., Colla, G., Zrenner, R., and Schwarz, D. 2017. Vegetable Grafting: The Implications of a Growing Agronomic Imperative for Vegetable Fruit Quality and Nutritive Value. Frontiers in Plant Science 8.

4 Grieneisen, M. L., Aegerter, B. J., Stoddard, C. S., and Zhang, M. H. 2018. Yield and fruit quality of grafted tomatoes, and their potential for soil fumigant use reduction. A meta-analysis. Agronomy for Sustainable Development 38.

5 Guan, W. and Hallet, S. 2016. Techniques for tomato grafting. Purdue Extension. HO-260-W. 6 Louws, F., Rivard, C., and Kubota, C. 2010. Grafting fruiting vegetables to manage soilborne pathogens, foliar pathogens, arthropods and weeds. Scientia Horticulturae 127:127-146.

7 Hu. B., Moyseenko, J., Short, S., Walker, S., and Kleinhenz, M. 2014. Eighteen rootstock and five scion tomato varieties: seedling growth rates before grafting and success in grafting the ninety variety combinations.

Midwest Vegetable Trial Report for 2014.

8 Cortada L, Sorribas FJ, Ornat C, Fé Andrés M and Verdejo-Lucas S. 2009. Response of tomato rootstocks carrying the Mi-resistance gene to populations of Meloidogyne arenaria, M incognita and M javanica. Eur J Plant Pathol 124:337– 343.

9 Soare R., Dinu M., Babeanu C. (2018): The effect of using grafted seedlings on the yield and quality of tomatoes grown in greenhouses. Hort. Sci. (Prague), 45: 76–82.

10 Rahmatian, A., Delshad, M., Salehi, R. 2014. Effect of grafting on growth, yield and fruit quality of single and double.

weed control in plastic mulch systems

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lastic mulches are used in many commercial vegetable operations to promote early growth and help increase yield potential. Weed management in plasticulture systems is more complex because there are three areas (under the plastic, plant holes in the plastic, and non-mulched areas between beds) where weed control is needed.1,2 Also, there are fewer herbicide control options, cultivation between rows is more difficult, and there can be a greater potential for crop injury.1 Season length and canopy structure should be considered in weed management decisions.

Long-season crops (melon, pepper, tomato, and watermelon) can require three to four months of weed control. Weed management strategies feasible in a field of staked tomatoes may not be possible in a watermelon field during the vining stage.3

Mulches Plastic mulches are often used to increase soil temperatures and stimulate early-season crop growth, but they can also provide weed control within the plant rows.4 Black plastic is good at suppressing weed growth because it blocks sunlight that stimulates the germination of some weed seeds and is needed for photosynthesis. Many annual weed species are suppressed under black plastic. However, the warm, moist conditions under the mulch can stimulate the germination of yellow nutsedge. Also, the light, which typically stops the upward growth and initiates leaf formation, is absent, which allows nutsedge to continue upward growth, resulting in them piercing the mulch layer.2 Sunlight penetrates clear and white (but not white on black) mulches, allowing weeds to grow under the plastic. Clear mulch can result in greater soil heating, but it does not control weeds. Coloured and IR mulches provide some of the additional soil warming benefits but block the wavelengths of light used for photosynthesis, resulting in better weed control.1,2

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research Weed control in vegetables grown on plastic mulch is often more complex than with non-mulched vegetable systems.

Weed management under the plastic, in the plant holes, and in the non-mulched areas must be considered separately.

Weed control under plastic mulch

Weed management in plant holes

Optimizing weed control under mulch requires good soil preparation. It is best to apply herbicides after forming beds but before laying the mulch. However, this can be difficult when using equipment that shapes beds and lays plastic in one pass. It is best if soilincorporated herbicides are applied and incorporated after bed formation but before laying the mulch.

Incorporating herbicides before bed formation can result in higher than recommended rates of herbicides in the bed soil and herbicides incorporated too deeply in the soil, resulting in crop injury.1,2 Also, applying herbicides to the entire field before laying the mulch can result in breaks in the weed barrier at the edges of the mulch strip when the soil is tilled to bury the plastic mulch.

Controlling weeds that emerge from plant holes can be difficult. Herbicides applied under the plastic can provide some control, but sunlight reaching the soil in these holes may allow weeds to germinate and grow.

Removing weeds by hand is often the best option for plant holes. Weeds growing in plant holes can affect some crops more than others. A North Carolina study found that tomatoes were not substantially affected by weeds growing in the holes, while melons showed a 40% yield reduction and peppers showed a 73% reduction.1

Some references state that overhead irrigation or rainfall of at least 12.5 mm is needed to activate the herbicides under the mulch. Others indicate that the condensation that forms under the mulch is often enough to activate herbicides.1,2 It is possible that the volatilization of herbicides under the mulch can result in crop injury. Growers should consult product labels for recommendations or restrictions related to the use of herbicides with plastic mulch and conduct smallscale tests before large-scale applications to help avoid crop injury. Soil fumigants applied through drip irrigation can provide good weed control, depending on the products used and weed species present. The wet edge of the irrigation front should reach the sides of the bed to ensure complete coverage.2

Weed management between beds Weeds also need to be managed in the non-mulched areas between beds. Management options in this area include herbicides, cultivation, mowing, and dead and living organic mulches. The stale bed, pre-emergence, and post-emergence stages of weed management all need to be considered.

Herbicides can be applied to the inter-row areas as stale bed treatments. Care needs to be taken if applying pre-plant herbicides before laying plastic for the reasons mentioned above. Broadcasting preplant herbicides over the whole field after the mulch has been laid is also not recommended. Herbicides applied to the mulch can be washed into plant holes with rain or overhead irrigation, resulting in herbicide concentrations substantially higher than what is recommended.1,2 Soils treated with herbicides also should not be used to mound around emerged seedlings or transplants.

When possible, lay mulches several weeks before planting or transplanting to allow weed seeds to germinate. Cultivation and banded applications of herbicides, such as glyphosate and paraquat, can be used as stale bed treatments. Check product labels for timing restrictions and allowed crop uses.1,2,3 These types of herbicides will not provide any residual weed control.

Cultivation or subsequent banded herbicide treatments will likely be needed to help manage weeds as the season progresses. Cultivations should be shallow to prevent bringing up weed seeds deeper in the soil profile. Post-emergence herbicides should not be applied to the plastic mulch because they can wash into the plant holes and may cause crop injury. Banded applications should be made with fully shielded sprayers (front, back, and sides) to prevent the herbicides from coming into contact with the cash crop. Backpack or handheld sprayers can also be used for targeted applications. Applications should be made when wind speeds are low to help prevent drift.

Targeted sprays or hand weeding may be required at the edges of the plastic mulch.1 Glyphosate and other translocated herbicides should not be used for postemergence treatments because contact with any part of the plant can result in injury to the whole plant or plant death.

Mowing, organic mulches, cover crops Researchers, extension specialists, and growers have been evaluating the use of organic mulches, mowing weeds, and planting cover crops between rows to manage weeds in plasticulture systems. While showing some promise, evaluations have shown that these forms of management may not provide adequate control. A Delaware-based study evaluated the use of living mulches (cover crops) between rows in plasticulture watermelon systems for weed management. Results showed that living mulches could lower total weed biomass between the rows.

However, they did not adequately manage weeds or eliminate the need for other forms of weed control.5 Other studies have found that cultivation and dead organic mulch provided better weed control than living mulches or the mowing of weeds between rows.4 The presence of living mulches and mowed weeds were also associated with yield reductions of some types of crops in some years of the study. It was hypothesized that the living mulches and mowed weeds may compete with the cash crop for resources such as nitrogen and water. Using living mulches, dead mulches, and weed mowing treatments may have additional benefits, such as protection against soil erosion, adding organic matter to the soil, and the increased biodiversity of the system.

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advancing beyond the basics seeds | science | service

Donatello* •

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Excellent cherry plum combined with high yield potential Strong plant with very early maturity Suited for single fruit or cluster picking Firm fruit offer extended shelf life Average fruit size of 22 – 24g

| www.nuvance.co.za |

Torcida* •

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Vigorous plant with good disease resistance Firm fruit with great taste and long shelf life Average fruit size of 180 – 200g Very well suited for undercover production

Rouja* • • • •

Early indeterminate round variety Good set and high production potential Average fruit size of 170 - 200g Very well suited for open field production

SV 7846 TH • •

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Suitable for undercover production Good tolerance of TYLCV and Powdery Mildew Suited for year round production

Considerations Weed management in plasticulture systems is complex, and growers should start planning early and carefully consider the various options available. Check regional production and pest management guides for recommendations on herbicides for specific crops and weed species. Not all herbicides can be used under plastic mulch, so growers should consult product labels for application recommendations and restrictions. When treating selected areas, such as under plastic mulch or only non-mulched areas, acreage calculations need to be adjusted. For example, in a system with 75 cm mulched beds and 75 cm inter-row areas, only half of the total field area will be treated during applications to under-mulch or between-row areas. Therefore, only half of the amount of herbicide will be needed. Residual herbicides may be difficult to use if different crops are grown in a small area. When treating row middles between two different crops, the herbicide selected must be registered for use on both crops.1,2,3

Sources 1.

2.

3.

4.

5.

Bonanno, A. R. 1996. Weed management in plasticulture.

HortTechnology 6:186-189.

Besancon, T. 2022. Recommendations for under plastic mulch weed control. Rutgers Plant & Pest Advisory. July 9, 2022.

Quinn, J. 2020. Peemergent herbicides for aisles between plastic covered beds. Integrated Pest Management, University of Missouri. https://ipm.missouri.edu/ MPG/2020/2/plasticMulch/.

Tarrant, A. and Hayden, Z. 2019. Optimizing betweenbed management strategies in plasticulture vegetables for improved crop production and soil health. https:// projects.sare.org/project-reports/gnc17-251/.

Vollmer, K. and VanGessel, M. Integrating cover crops for weed management in plasticulture systems. https:// www.udel.edu/academics/colleges/canr/cooperativeextension/sustainableproduction/weed-science/

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access to premium products seeds | science | service

• •

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Lugano*

SV 9054 YG*

Excellent fruit quality Intermediate resistance to PRSV, ZYMV and WMV Maturity: 45 days Vigorous, open plants for easy harvesting

• • •

| www.nuvance.co.za |

Good fruit quality Dark green colour Intermediate tolerance of PRSV, SLCV, WMV, ZYMV

Waltham • • •

Good yield, size and shelf life Vigorous with good leaf cover Average fruit mass: 0.9 – 1.5 kg

Canesi • • •

Excellent fruit quality Good leaf cover Average fruit mass between 1.2 – 2.5 kg

lone oak seedlings

W

ayne and Shenay Jeffries run this wellestablished seedling nursery in Gonubie, East London. It is one of the few successful open-air nurseries that still exist. They are proud to punt that their seedlings are produced at the mercy of the ever-changing weather patterns in the coastal belt and as a result, their finished product is arguably hardier than any of their competitors.

Over the years, Nuvance has had a close business relationship with the team at Lone Oak to supply some of the many products that they have to offer.

Wayne has a steady finger on the pulse when it comes to the speculative market demands of the Transkei.

Not an easy market to cater for year after year, but his constant willingness to adapt allows him to stay in tune with the fluctuating demand levels.

With these difficult targets in mind, Nuvance, with the help of our brassica product developer, Lindie Oberholzer, have recently teamed up with Lone Oak to promote and kickstart our new cabbage variety, Excalibur. A large frame and head cabbage which performs well all year round. An ideal product to service the Transkei market. The promotion on Excalibur was also driven by the “Excalibur Bejo caps campaign". Once again Nuvance driving a team effort in supporting and promoting our clients. The campaign was launched in September 2022 gathering substantial interest from growers, it's early days but we are confident that this is going to be a reliable, consistent performing product going forward.

We wish the team at Lone Oak every success they deserve and look forward to a continued partnership.

21

article by howard champ

Excalibur clients

Wayne Jeffries

industry

nuvance vegetable sowing guide AREA* CROP 1

2

3

4

5

6

7

Bean (Dwarf)

Aug - Jan

Aug - Feb

Feb - Sep

Sep - Jan

Aug - Jan

Oct - Jan

Sep - Jan

Bean (Runner)

Aug - Dec

Aug - Dec

Feb - Aug

Sep - Dec

Aug - Dec

Oct - Dec

Sep - Dec

Beetroot

Aug - Mar

Aug - Apr

Feb - Jul

Feb - Mar

Aug - Apr

Jul - Feb

Jan - Dec

Eggplant

Aug - Oct

Aug - Nov

Jan - Sep

Aug - Oct

Aug - Oct

Aug - Oct

Aug - Nov

Broccoli

Dec - Feb

Dec - Feb

Mar - Apr

Dec - Feb

Dec - Mar

Dec - Mar

Dec - Mar

Butternut

Sep - Nov

Aug - Jan

Feb - Aug

Aug - Nov

Sep - Nov

Sep - Dec

Aug - Jan

Cabbage

Jan - Dec

Jan - Dec

Jan - Dec

Jan - Dec

Jan - Dec

Jan - Dec

Jan - Dec

Oct - Nov Jan - Mar Dec - Feb Sep - Oct

Jan - Mar Sep - Oct

Feb - Aug

Jan - Mar Aug - Oct

Jan - Dec

Jan - Dec

Jan - Dec

Dec - Feb

Feb - Mar

Dec - Feb

Dec - Mar

Dec - Mar

Dec - Mar

Cucumber

Sep - Dec

Aug - Jan

Feb - Sep

Sep - Dec

Sep - Dec

Sep - Jan

Sep - Jan

Lettuce

Jan - Mar Aug - Dec

Jan - Sep

Mar - May

Jan - Mar Aug - Sep

Jan - Mar Aug - Sep

Jan - Dec

Jan - Dec

Melon

Oct - Nov

Aug - Dec

Jan - Sep

Sep - Nov

Sep - Oct

Sep - Nov

Sep - Dec

Onion

Feb - Mar

Feb - Mar

Mar - Apr

Mar - Jul

Feb - Mar

Mar - May

Apr - May

Parsley

Feb - Apr Sep - Oct

Aug - Oct Mar - Apr

Feb - May Jun - Sep

Feb - Mar Aug - Sep

Aug - Sep Dec - Jan

Aug - Feb

Mar - Nov

Pea

Jul

Mar - May

May - Jun

May - Jun

Apr - Jun

Apr - Jun

Mar - Jul

Pepper (Hot/Sweet)

Aug - Oct

Aug - Oct

Jan - Apr

Aug - Nov

Sep - Oct

Aug - Oct

Sep - Nov

Pumpkin

Oct - Nov

Aug - Dec

Feb - Aug

Sep - Dec

Sep - Dec

Sep - Nov

Sep - Nov

Swiss Chard

Aug - Oct Jan - Mar

Jul - Oct Jan - Apr

Feb - Aug

Jan - Mar Jul - Oct

Jan - Mar Aug - Oct

Jan - Mar Jan - Mar

Mar - Apr Aug - Sep

Squash

Sep - Nov

Aug - Jan

Feb - Aug

Aug - Nov

Sep - Nov

Sep - Dec

Aug - Jan

Sweetcorn

Sep - Dec

Aug - Jan

Mar - Oct

Aug - Nov

Sep - Nov

Sep - Dec

Sep - Jan

Tomato

Sep - Nov

Aug - Dec

Jan - Jul

Aug - Nov

Aug - Nov

Aug - Oct

Aug - Dec

Watermelon

Sep - Nov

Aug - Sep

Jul - Aug

Sep - Oct

Sep - Oct

Sep - Oct

Sep - Nov

Carrot Cauliflower

01

GAUTENG

02

FREE STATE

03

LIMPOPO

05

KWAZULU-NATAL MIDLANDS

06

EASTERN CAPE & LITTLE KAROO

07

WESTERN CAPE & SOUTH COAST

23

SEED / g 8

PLANTS PER HECTARE

SOW DEPTH (mm)

DISTANCE IN ROW (cm)

BETWEEN ROWS (cm)

SOIL TEMPERATURE FOR GERMINATION MINIMUM °C OPTIMUM °C

Sep - Nov

4-6

60 - 80 kg

40

7

50

16

16 - 29

Feb - Aug

4-6

50 kg

40

10

100

16

16 - 29

Feb - Jul

50 - 60

170 000 - 350 000

20

7

20

4

10 - 29

Jan - Sep

230 - 250

10 000 - 16 000

20

50

75

16

24 - 32

Mar - Apr

280 - 330

30 000 - 36 000

10

45

60

4

7 - 30

Feb - Aug

8 - 10

10 000 - 18 000

20

50

100

16

21 - 35

Jan - Dec

280 - 350

25 000 - 30 000

10

45

60

4

18 - 35

Feb - Aug

800 - 1100

1 200 000 - 2 500 000

20

3-5

20

4

7 - 29

Feb - Mar

280 - 350

20 000 - 35 000

10

45

70

4

7-30

Feb - Sep

30 - 50

2 - 2.2 plants/m2

20

40

130

16

16 - 35

Mar - May

800 - 1000

55 000 - 75 000

20

25

40

2

4 - 27

Jan - Aug

30 - 40

12 000 - 13 000

20

25

150

16

24 - 35

Feb - Mar

250 - 280

700 000 - 850 000

10

8

20

2

10 - 35

Mar - May Aug - Sep

550 - 800

300 000 - 450 000

20

10

30

4

10 - 29

Apr - Jun

4-8

70 - 90 kg

30 - 70

7

60

4

4 - 24

Jan - Apr

120 - 150

25 000 - 35 000

20

50

80

16

18 - 35

Feb - Aug

3-5

6 000 - 8 000

20

70

250

16

21 - 32

Feb - Aug

50 - 60

7 kg

20

20

60

4

10-29

Feb - Aug

8 - 10

15 000 - 18 000

20

50

50 - 75

16

21 - 35

Jan - Dec

7 - 11

55 000 - 65 000

25

25

75

5

20 - 30

Jan - Jul

350 - 400

10 000 - 14 000

20

45

120

10

16 - 35

Jul - Aug

10 - 25

5 000 - 6 000

50

100

175

16

21 - 35

04

NORTHEN CAPE & GREAT KAROO

08

KWAZULU-NATAL, LOWVELD & COAST

Technical variety information provided in this document is applicable to climatic conditions in RSA. Nuvance (Pty) Ltd supply quality seed within the tolerances laid down by the Law in South Africa. The full text of the company's conditions of sale will be supplied on request.

future seedlings @ renca boerdery

T

he Vermeulens in East London remain regular clients of Nuvance with SV4129TH* being their preferred tomato during the winter months.

From our observations at Nuvance, it is clear that their attention to detail throughout the production period of the crop always results in above-average yields. Due to their attention to detail, we are always confident to provide trials of new and improved varieties available from our team of breeders at Bejo.

We rather do a selection of several smaller trials with growers at different slots than large once-off trials of many new varieties. Currently, Eugene is also looking at a promising new indeterminate variety from Nuvance, known as Torcida*. So far, this variety looks promising as a variety that undercover growers can rely on during the winter period around the East London area.

Along with the constant attention to detail which is being practiced on the farm, the Vermeulens have developed their business to the point of eliminating as many of the 'middlemen' as possible. I am referring to the days when they, along with most growers of the time, relied on commercial nurseries and local packing establishments to assist them with getting

their produce from seedling to the final consumer.

In the last couple of years, the Vermeulens have established their own packing shed and successfully secured a market for their produce. In the last 12 months, they have also erected their own nursery for seedling production (Future Seedlings). Time constraints are always difficult when commissioning new projects like this, so when they committed to sow their first seeds, the structure was not even completed (to their satisfaction) but it was enough to procure the first batch of seedlings without a hitch. This is an admirable feat in the wake of the continued workload in the greenhouses, the operation of their packing shed, financial juggling and of course interrupted power supply. Despite these added pressures the germination and quality of seedlings were exceptional.

This now really allows the Vermeulens to be in the driving seat on how their product is developed and particularly the correct timing of all operations to ensure even greater success.

It's encouraging to see such growth in this industry during very trying times, so we at Nuvance are inspired and committed to continue playing our part in assisting wherever our expertise is needed.

25

industry article by howard champ

Torcida* inspection

SV4129TH* seedlings

berlin* = yield

W

hen you hear Berlin, the first thing that probably comes to mind is the impressive capital city of Germany. However, in this case, it is the new carrot variety from Bejo. Similar to the city it’s named after, the carrot Berlin* is quite remarkable. Not only is it a high-yielding carrot variety that puts the phrase "return on investment" into a new perspective, but could perhaps be an all-rounder throughout South Africa thanks to its vigorous and upright foliage. It is almost impossible to have a less-than-average yield with this new cultivar.

27

products article by robert janse van rensburg

We at Nuvance pride ourselves on our Bejo varieties, as the fundamentals in producing quality vegetables that have always been of the highest standard. It is not only what happens on top but almost more about what happens below the surface. It has been seen numerous times that Bejo’s varieties have the best roots when compared to any other variety and this is where the strong foundation starts as this impressive root system helps the farmer get more out of his soil.

South Africa has some harsh environmental conditions to grow vegetables. Sometimes it rains nonstop while other times droughts cause your crop to wilt permanently. This is exactly why most countries have moved to varieties that are better suited for all growing conditions, but also what does it help growing carrots without the right shape and even more important profitability? Nowadays yield is the most important aspect of growing carrots where input costs such as chemicals, fertilizers and fuel have skyrocketed. Thankfully we at Nuvance have seen yields constantly of >80 tons/ha from Berlin*.

Also, what we’ve been seeing is that it could handle not only cold conditions but also wet and warm conditions. Berlin* therefore seems like a good choice when planning to plant carrots this season, don’t you agree?

The typical shape of Berlin* together with healthy foliage.

Berlin*

Berlin*

Standard variety

Standard variety

Standard variety

Standard variety Berlin*'s strong foliage after a very wet season.

lugano* in limpopo

D

ie afgelope seisoen het Lugano*, Bejo se nuwe baba skorsie uitmuntende resultate opgelewer.

Nie net het die skorsie ‘n uitstaande siekte pakket nie, maar beskik hy ook oor ongelooflike vrug kwaliteit en raklewe.

Reg deur die hele groeiproses was Lugano* se plante baie sterk en het 'n uiters vegetatiewe groeiwyse getoon. Die feit dat die plante ook 'n baie mooi oop groeiwyse het, vergemaklik die oes proses aansienlik.

Dit is een van die eienskappe wat beslis nog vir baie boere tot voordeel sal wees.

Die goeie siekte pakket verseker die boer natuurlik ook van gesonde plante wat kop bo water groter is as vele van die ander kompeterende variëteite en dus 'n langer oes tydperk met beter opbrengste oplewer. Die vrugte is baie silindries en helder groen in kleur.

Lugano* is van plant tot oes ongeveer 45 - 50 dae, wat dit 'n redelike vroeë variëteit maak.

Lugano* het ook intermediêre toleransie teen: • PRSV • ZYMV • WMV Inderdaad 'n skorsie van hoë kwaliteit.

29

products artikel deur harold lindeque

maragogi at mamogale article by robert janse van rensburg

M

amogale Meule just outside Brits in the North West Province has been growing Maragogi for several years now and based on their most recent yield of an estimated 10 000 bags/ha they have perfected the art of growing this variety. This is a testament to what can be achieved with the correct management of any variety. Each year Maragogi forms a large part of their annual onion plantings. Hekkie from Mamogale Meule made several plantings in 2023, the first of which was during the first week of February and since Maragogi is known to be a very early variety the first onions were ready for harvest in mid-June already. Besides the high yield, this variety also demonstrated very good uniformity both in terms of shape and size with its signature thin necks. The grower was undoubtedly pleased with having included Maragogi in his program once again. Despite already being an established variety amongst the Brits onion growers, Maragogi continues to outperform itself year after year.

31

products

markleier megaton artikel deur richard hansen

M

nr. Johan Roos van die Cederberg distrik het drie jaar gelde Megaton op klein skaal begin plant. Vandag is hy die markleier i.t.v kool produksie en kwaliteit in die Wes-Kaap, indien nie in die land nie.

Megaton is 'n groot kool variëteit geskik vir die vars- en smous mark. Die rede hoekom Megaton meeste van die boere se nommer een winter kool variëteit is, is sy vermoë om uiterste koue toestande te kan hanteer en steeds 'n produk van hoë gehalte te bied.

Volgens mnr. Roos staan Megaton se aanpasbaarheid om in verskillende areas en toestande asook sy vermoë om langer te staan as wat hy moet (sonder om te bars) uit bo ander kool variëteite.

stalwart “1609”

O

ver the years PS 16351609 has proven itself as one of the leading sweet pepper varieties on the market. Not only does it produce high-yielding quality fruits but also has a strong root system with Phytophthora resistance.

As an open-field variety, it has a very good leaf cover which protects the fruit against sunburn. PS 16351609 is doing exceptionally well in net house production, especially in older net houses where soil conditions are less than optimal.

PS 16351609 has the added advantage of offering high yields of up to 10 000 x 5kg boxes per hectare.

33

products article by heigers campher

plant rouja* tot jou eie voordeel artikel deur harold lindeque

D

ie afgelope seisoen het Rouja* tamatie besondere eienskappe vir die boer aangebied, wat kenmerklik tot voordeel vir hom/haar is.

Ten spyte van al die uitdagings wat ons in die oë staar, soos die veranderde klimaatstoestande, insetkoste, beurt krag, ens. was Rouja* ‘n variëteit wat kop bo water uitgestaan het in die Limpopo area. Die variëteit is ongelooflik verdraagsaam teenoor hoë hitte toestande en het ook uitgestaan as dit kom by kwaliteit en opbrengs.

Een van sy hoof eienskappe is dat hy sy vruggrootte en fermheid hou hoe langer hy in sy groei proses is.

Verder beskik Rouja* oor baie goeie blaar beskerming wat van kardinale belang is om die vrugte te beskerm.

Vrugset was ook een van die eienskappe wat die oog natuurlik eerste lok. Baie mooi ronde, ferm vrugte en die volgende voordele is natuurlik ook baie belangrik: • • •

Ideaal vir die vars mark Geskik in winter toestande sowel as baie warm somers Baie mooi vruggrootte (180 - 220g vrugte)

Ook die volgende weerstande en toleransie waaroor Rouja* beskik is tot voordeel vir die boer: HR-ToMV:2/Ff:E/Fol:0.1/For/Sbl/Sl/Ss/Vd:0 IR: TYLCV/Ma/Mi/Mj Bevoordeel jouself en maak Rouja* hierdie seisoen deel van jou plant program, jy sal nie spyt wees nie.

35

rouja* rewards grower

products article by robert janse van rensburg

I

n these trying times where input costs are soaring, it is important to plant the best variety especially when growing tomatoes. As a result, we are constantly improving our varieties just like the new and improved SV4129TH* called “Rouja*”. Rouja* has an incredible shape, yield and disease package to guarantee an excellent A-grade pack out that any farmer could dream of.

Rouja* was planted under nets (but can also be planted in the open field or even in tunnels) at HenCar Boerdery. Without any hesitance, the grower admitted that this was her best variety to date with an exceptionally high amount of A-grade pack out. The farmer continued to say that this variety is of such good quality that most of her tomatoes will go to the high-end retail stores. With this said, we at Nuvance are grateful for the great feedback and hopefully we can get this positive feedback for many years to come as it is our main goal to satisfy the growers with exceptional varieties just like with Rouja*.

Furthermore, this variety is very affordable and boasts an incredible disease package. Please contact your nearest sales representative for more information and make sure you also reap the rewards that Rouja* has to offer.

clubroot resistant zaragoza*

C

lubroot is a disease of crucifer crops (Brassicaceae): broccoli, brussels sprouts, cabbage, cauliflower, etc. caused by the soil micro-organism Plasmodiophora brassicae. This micro-organism is an obligate parasite that can only grow and reproduce in living roots.

However, the micro-organism is capable of surviving in the soil for more than 10 years. The organism can also infect weeds (mustard), grasses (ryegrass, bentgrass and orchid grass), legumes (red clover) and other crops (poppy, sorrel). Although clubroot symptoms do not develop on these hosts, they should not be used as a cover crop in clubroot-infested fields.

Infected plants develop much slower than clubroot-resistant varieties (such as Zaragoza*). Plant development was not only slower, but plant loss was significantly higher in the non-resistant varieties.

The clubroot pathogen germinates in wet soils, soil temperatures between 18 - 25ºC and acidic soils (pH<7).

Management is focused on preventing the introduction of the pathogen into a field. The following management strategies can be followed: • • • • • • • • •

Sanitation – Sanitize infected tools and equipment when moving between fields.

Raised plant beds – Limiting soil moisture will help reduce the disease.

Avoid water run-off – Contaminated water can spread the disease to other fields.

Increase soil pH – High Ca content can reduce the severity of the disease (pH 7.1 -7.5).

Eliminate weeds – They can transmit the pathogen to the crop.

Crop rotation – Rotate away from Brassicas for a minimum of 4 - 7 years.

Fungicide application – There are no consistent and financially viable effective fungicides.

Remove affected crops – Dispose of affected plants as far as possible from the field.

Resistant/Tolerant varieties – There is a limited selection of crucifer crops that are resistant/tolerant to clubroot.

37

products article by anina meyer

Root infection of a clubroot-resistant cauliflower variety Zaragoza* (L) compared to root infection of clubroot non-resistant cauliflower variety (R).

Infected plants develop much slower than clubroot-resistant varieties (such as Zaragoza*). Plant development was not only slower, but plant loss was significantly higher in the non-resistant varieties.

Nuvance has a clubroot resistant/tolerant cauliflower variety, Zaragoza* (Bejo). Zaragoza* was trialed during 2022/23 in Kwazulu-Natal. This study is still in progress, but the following data was collected thus far:

• • •

Planted: 21/08/2022 Harvested: 15/11/2022 Days to harvest: 82 days with an average head weight of 460g

• • •

Planted: 20/10/2022 Harvested: 09/01/2023 Days to harvest: 80 days with an average head weight of 350g

• • •

Planted: 26/01/2023 Harvested: 06/04/2023 Days to harvest: 70 days with an average head weight of 325g

Zaragoza's* heads are white, curds not riced, well wrapped and tuckedin.

Zaragoza* tends to be harvest-ready 7 – 10 days earlier than the opposition varieties. Current data sets were collected throughout the spring and summer growing periods. The data sets for autumn and winter still are in progress.

39

success is in the detail seeds | science | service

Batavia

Alcala* • • • • •

A late summer/autumn variety for the highveld region Produces a dense, white curd excellent for pre-packing Uniform and productive Maturity: 75 - 78 days Average head weight: 750 - 900g

| www.nuvance.co.za |

• • •

Medium sized broccoli Grey-green colour Suitable for spring to mid summer production

oplossings gedryf deur advies saad | wetenskap | diens

Subeto • • • • •

Medium-vroëe kultivar Regop groeiwyse Uistekende somerkultivar Geskik vir die varsmark Hoë toleransie teen blaarvlek

Manzu • •

•

Oesgereed binne 80 tot 100 dae Geskik vir die verpakkings- en bossiemark Goeie toleransie teen Rhizomania

Boro • • •

Goeie toleransie teen blaarvlek Uitstekende somerkultivar Boro is geskik vir die verpakkingsmark

| www.nuvance.co.za |

41

nuvance hoofkantoor

regional news

N

uvance hoofkantoor is geleë in N4 Gateway Industriële Park in Pretoria. Die meerderheid van bestellings word van hiér af uitgestuur direk na die kliënte toe. Ons hoof prioriteite is kliënte diens en kwaliteitsbestuur van saad.

Hierdie is die personeel wat gestasioneer is by Hoofkantoor.

Voor van links: • Enock Mphela (Vurkhys drywer en algemene werker), • Jackie Mphela (Algemene werker), • Magda Hendrikz (Proefsaad assistent), • Floris Kotze (Algemene bestuurder).

Agter van links: • Eunice Burger (Finansiële rekenmeester), • Gawie Buys (Verkoopsbestuurder), • Dr Quintin Muhl (Produkontwikkeling bestuurder), • Jaco Coetzee (Finansiële bestuurder), • Zelda Hill (Pakhuis kontroleerder), • Adelé Scheepers (Operasionele bestuurder), • Phumlani Dladla (Drywer).

Ons het twee depots waarvan een in Louis Trichardt (Makhado) is en die ander een in Brits.

By die Louis Trichardt (Makhado) depot het ons vir Dokter (Mahlodi) Makganyowa as die depot beheerder. Ons depot is reg langs die N1 snelweg in Industria straat.

Dokter (Mahlodi) Makganyowa

By ons Brits depot het ons vir El-Marie Kotze wat al deel is van Nuvance vanaf 2021. El-Marie is die depot beheerder in Brits. Julle kan die Brits depot besoek by 15 Harrington Straat.

El-Marie Kotze

welcoming: eunice burger

E

unice joined Nuvance in February earlier this year as our accountant. She was born in Cape Town but grew up in Pretoria, where she also matriculated at Hoërskool Waterkloof.

After more than 15 years of financial experience in the production industry, she believed that it was time for a change and when the opportunity to work for Nuvance became available she grabbed it with both hands!

She is very excited to be part of the Nuvance family and looks forward to gaining new experience and broadening her horizons.

Eunice says that vegetables to her were simply something she bought in a shop. “Never did I ever think of how much hard work, dedication, love and enthusiasm goes into getting these veggies onto my plate. Loving them veggies even more now!” she adds.

We welcome Eunice at Nuvance and look forward to having her as part of our team.

43

welcoming: jaco coetzee

H

ello, I'm Jaco Coetzee, a financial professional with a passion for accounting and a decade of experience as a financial manager in the manufacturing industry. I was born and raised in Brits, North West, and completed my secondary education at Brits High School in 2003. Afterward, I pursued my academic journey at UNISA, where I successfully obtained my Bachelor's degree in Accounting Science in 2016.

Throughout my career, I have honed my skills in financial management, overseeing various aspects of financial operations within the manufacturing sector. My expertise lies in analyzing financial data, implementing effective financial strategies, and ensuring compliance with regulations and standards.

Recently, I embarked on a new professional endeavor by joining Nuvance (Pty) Ltd on April 11th, 2023. I am excited about this opportunity to contribute my knowledge and skills to the organization and drive financial success.

I am continuously dedicated to expanding my knowledge and staying up-to-date with industry trends and advancements. I believe in the power of teamwork, collaboration, and innovation to achieve exceptional results. With my extensive background in financial management and my commitment to excellence, I am confident in my ability to make a positive impact in my role at Nuvance (Pty) Ltd. Outside of work, I enjoy spending time with my family, exploring new places, and engaging in activities that promote personal growth and well-being. I am thrilled to be a part of this dynamic community and look forward to the exciting opportunities and challenges that lie ahead.

We welcome Jaco at Nuvance.

regional news

access to premium products seeds | science | service

SV 5047 CE*

Hoplita* • •

• • •

Vigorous plant Ideal for the summer months, but does also perform well during winter in the Lowveld Medium large fruit High tolerance of CVYV and Ccu Intermediate tolerance of CYSDV, Px, Cca

• • • • • • •

Plants have a very open structure Suitable for winter production Vigorous plants with short internodes Excellent fruit set Cylindrical and straight fruit High tolerance to Cca, Ccu Intermediate tolerance to CVYV, CYSDV, CMV, Px

Yildo* • • • • • • •

Parthenocarpic smooth mediterranean cucumber First picking 45 days after sowing 2 - 3 fruits per node Fruit size 18 - 20 cm Fruit weight 150 - 200 g High tolerance to Ccu, PRSV, WMV, ZYMV Intermediate tolerance to CMV, CVYV

| www.nuvance.co.za |

45

sales

verkoopspan | sales team 07

08

03

01

REGION

09

05

06

04

10

02

CONTACT PERSON

CONTACT NO.

01

Western Cape

02

Eastern Cape

03

Northen Cape

04

Mpumalanga

05

Gauteng

06

Limpopo

07

Bushveld

08

North West

09

Free State

10

Kwa-Zulu Natal

EMAIL

SADC

Floris Kotze – General Manager

082 604 0060

f.kotze@nuvance.co.za

SADC

Gawie Buys – National Sales Manager

082 467 0577

g.buys@nuvance.co.za

SADC

Lindie Oberholzer – Product Development Manager 066 235 6494

l.oberholzer@nuvance.co.za

SADC

Dr Quintin Muhl – Product Development Manager

072 612 7906

q.muhl@nuvance.co.za

01

Richard Hansen – Technical Marketer

082 666 0405

r.hansen@nuvance.co.za

02

Howard Champ – Technical Marketer

082 574 3633

h.champ@nuvance.co.za

03

Louwtjie Steenkamp – Agent

082 808 3316

louwtjie.steenkamp@kynoch.co.za

Jacques Louw – Technical Marketer

081 028 1747

j.louw@nuvance.co.za

06

Harold Lindeque – Technical Marketer

064 656 1556

h.lindeque@nuvance.co.za

07

Heigers Campher – Technical Marketer

071 816 3070

h.campher@nuvance.co.za

08

Robert Janse van Rensburg – Technical Marketer

074 255 4482

r.jansevanrensburg@nuvance.co.za

Anina Meyer - Technical Marketer

082 785 6697

a.meyer@nuvance.co.za

04 05

09 10

ADDRESS

CONTACT NO.

EMAIL

Head Office 77 Banghoek Crescent | N4 Gateway | Industrial Park Willow Park Manor | 0184

010 534 8147

info@nuvance.co.za

Brits 15 Harrington Street | Brits | 0250

012 493 0358

brits@nuvance.co.za

Louis Trichardt c/o Industria and Unika Street | Louis Trichardt | 0920

015 516 4809

dokter@nuvance.co.za

advancing beyond the basics seeds | science | service

Natuna • • • •

Very uniform, cylindrical carrot Good tolerance to Alternaria High yield potential Suitable for the 1, 3 and 5 kg packaging market

Belgrado* • •

•

Large, mid-early variety Strong, healthy leaves with good resistance against Alternaria Very cylindrical, well-rounded roots

Berlin* •

• •

•

Productive and uniform Berlicum type carrot Large, bulky and cylindrical Strong, healthy leaves with good Alternaria tolerance Highly adaptable variety

Baltimore •

•

• •

An early, cylindrical, smooth, well filled Berlicum Strong leaf attachment (suitable for mechanical harvesting) Harvest ready after 100 to 110 days Suitable for the fresh and processing market

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47

“If agriculture goes wrong, nothing else will have a chance to go right”.

- M. S. Swaminathan

success is in the detail seeds | science | service

PS 16351609* • • •

Tolerant to Phytophthora capsici Extended harvest periods Improved marketable yield

Revelation • • • •

Good shelf life Average fruit size of 10 x 10 cm Blocky sweet pepper Suitable for the fresh market

King Arthur •

•

•

Vigorous growth, excellent fruit quality and widely adaptable open field variety The large, blocky peppers are sweet, thick-walled, and ripen from green to bright red Average fruit weight: 250 – 350g

Dunbar* • • • •

Attractive fruit colour High-quality fruit with high yield potential Compact plants with a concentrated fruit set Vigorous plant featuring large leaves that produce excellent cover

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