Variety/Hybrid
2016 Roster Outstanding lineup is ushered into the upcoming growing season.
T
he fall and winter are prime decision-making times for farmers across the country. One of the most important choices that rice producers will make involves variety or hybrid selection. The following is a list of Clearfield and hybrid offerings for 2016. Consider each of your fields individually and decide on your goals when making variety and/or hybrid choices for the upcoming season. The following charts and characteristic information were provided by Horizon Ag LLC and RiceTec.
Horizon Ag LLC 2016 Clearfield Varieties CL111
• Earliest maturity of any Clearfield variety • Excellent vigor with high yield potential • Outstanding grain quality and milling • Ideal for early planting and to stagger harvest timing • Kellogg’s preferred long grain
CL151
• Highest-yielding inbred variety on the market • Susceptible to blast: not recommended for fields with a history of blast or water issues • Uses N very efficiently. The NSt*R program is recommended where available and may help reduce nitrogen input costs, improve disease control and minimize lodging.
CL152 • • • •
Superior lodging resistance Good grain quality and milling Good seedling vigor and tillering Identity-preserved loads have received premium for their preferred quality
CL163
• Excellent yield potential • Extremely high grain quality and milling • Exceptional cooking quality ◦ Extra-high amylose content compared to current long grain varieties
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Web Resources
XL723
For more information about Horizon Ag Clearfield varieties, please visit www.horizonseed.com.
• Workhorse conventional hybrid released in 2005 • Best option for straighthead-prone fields • Excellent choice for ratoon production • Superior milling yield
For more information about RiceTec hybrids, please visit www.ricetec.com.
RiceTec 2016 CLEARFIELD Hybrids CLEARFIELD XL 4534
◦ Ideal for parboil, canning, foodservice or package rice • Susceptible to blast: not recommended for fields with a history of blast or water issues
CL271
• Semi-dwarf Clearfield medium grain • Improved agronomics over CL261, including blast resistance • Excellent yield potential
RiceTec 2016 Traditional Hybrids XL753
• Highest-yielding hybrid available • Winner of the Mississippi State University and University of Arkansas 2013 and 2014 yield trials • Excellent disease tolerance
XL760
• Similar yield to XL753 • Good milling yield • Great disease package
• • • •
Highest-yielding Clearfield available Very early maturity Excellent lodging resistance Superior grain retention
CLEARFIELD XL 745
• “4 x 4” of the Clearfield lineup • Most widely grown long-grain rice in the United States • Above-average milling yields • Superior performance across all soil types • Improved grain retention
CLEARFIELD XL 729 • • • •
Workhorse Clearfield hybrid Best performance on clay soils Excellent ratoon potential Great disease package
CLEARFIELD XP 756
• Similar yield potential to CLEARFIELD XL 729 • Later maturity to help spread out harvest • Improved grain retention • Best available disease package RICEFARMING.COM
2016 Clearfield Disease Ratings Variety
Sheath Blight
Blast *
Straighthead
Bacterial Panicle Blight *
Narrow Brown Leaf Spot *
Kernel Smut
False Smut
Lodging
CL111
VS
MS
S
VS
S
S
S
MS
CL151
S
VS
VS
VS
S
S
S
S
CL152
S
S
-
MR
MR
VS
S
MR
CL163
S
VS
MR
MR
MS
-
-
MS
CL271
S
MR
-
MS
MR
-
-
-
VS=Very Susceptible S=Susceptible MS=Moderately Susceptible * Reactions may differ due to variability of strains among pathogens.
MR=Moderately Resistant
R=Resistant
Clearfield Variety Characteristics and Suggested Management Practices Variety
Height1 (inches)
Maturity2 — Emergence to 50% heading (days)
Suggested Seeding Rate3 (lb seed/A)
Suggested Nitrogen Rate4 (lb N/A)
CL111
39
77
60-70
120-160
CL151
39
81
50-65
90-150
CL152
39
83
50-65
120-160
CL163
41
89
50-65
120-160
CL271
38
89
50-70
120-160
1
Height will vary with plant density and environmental conditions.
2
Maturity varies with geographical region and environmental conditions in a given year.
3
Optimal seeding rate varies depending on soil characteristics, seedbed condition and environmental conditions at time of planting.
Optimal nitrogen rate varies from field to field. The high end should be reserved for heavy clay soils and fields where rice is followed by rice. Using the high end of the nitrogen and seeding rate recommendations may increase the incidence of disease. Please scout and treat the Clearfield varieties accordingly. The NSt*R program is recommended where applicable and has been shown to decrease incidence of disease and lodging. Please contact your local Cooperative Extension office for more information. 4
RiceTec Disease Reaction1 Product
Blast2
Characteristics
Sheath Blight
Straighthead
Kernel Smut
False Smut
Stem Rot
Bacterial Narrow Panicle Brown Blight Leaf Spot
Standability Height
Maturity
Grain Retention
CLEARFIELD Long Grain CLEARFIELD XP756
R
MR
MS
MS
MS
S
MR
MR
Average
45-47
Medium Late
Above Average
CLEARFIELD XL745
R
MS
MR
MS
MS
S
MR
MR
Average
43-44
Early
Average
CLEARFIELD XL729
R
MS
MR
MS
MS
S
MS
MR
Above Average
42-44
Early
Below Average
CLEARFIELD XL4534
R
MS
MS
MS
MS
S
S
MR
Excellent
37-39
Very Early
Above Average
XL753
R
MS
MS
MS
MS
S
MS
MR
Above Average
42-44
Early
Above Average
XL723
R
MS
MR
MS
MS
S
MS
MR
Average
42-44
Early
Below Average
XL760
R
MS
MS
MS
MS
S
-
MR
Average
45-47
Early
Above Average
Standard Long Grain
1 RiceTec hybrid disease ratings and characteristics are determined from data collected from specific RiceTec and/or university field trials and are not a guarantee of performance, nor do they constitute a warranty of fitness for a particular use. R = Resistant; MR = Moderately Resistant; MS = Moderately Susceptible; S = Susceptible; VS = Very Susceptible 2 RiceTec hybrids have shown field resistance to common strains of rice blast fungus. Possible susceptibilty to unusual strains of the rice blast fungus, which have been thus far rare on one hybrid in the field to date, is being analyzed under controlled conditions in the laboratory and greenhouse.
Although RiceTec hybrids typically do not require fungicide treatment, fields should be scouted closely for diseases and treated with fungicides when necessary. Consider field history and environmental conditions when making fungicide decisions. Apply preventative applications of fungicide if justified by field history for kernel smut, false smut and/or narrow brown leaf spot.
Twitter: @RiceFarming
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