Assessment of the agronomic performance of Malayan Yellow Dwarf × Vanuatu Tall coconut (Cocos nucife

Page 1

Journal of Research in Biology

ISSN No: Print: 2231 –6280; Online: 2231- 6299

An International Scientific Research Journal

Original Research

Journal of Research in Biology

Assessment of the agronomic performance of Malayan Yellow Dwarf × Vanuatu Tall coconut (Cocos nucifera L.) hybrid variety tolerant to lethal yellowing disease of Ghana in Côte d’Ivoire. Authors: Zadjéhi Eric-Blanchard KOFFI 1,2*, Jean Louis Konan KONAN 2, Raoul Sylvère SIE 1, Didier-Martial Saraka YAO 1,2, Yoboué KOFFI1,2,Ysidor N’guessan KONAN 2,3, Emmanuel Auguste ISSALI 2, Thierry Lékadou Tacra2 et Kouassi ALLOU2.

ABSTRACT:

2. Centre National de Recherche Agronomique, Station de recherche Marc Delorme, 07 BP 13 Abidjan 07, Côte d'Ivoire.

Keywords: Hybrid coconut MYD x VTT, tolerant, productivity.

This article aims to study the agronomic performance of 18 hybrid progenies of coconut MYD x VTT and their parents VTT in Côte d'Ivoire. The evaluation was focused on the number of bunches per year (Nbb), the number of fruits per year (NBFR), copra produced per tree per year (Cop / tree / year) and per hectare per year (Cop / hectare / year). It appears from this work that the hybrids MYD x VTT produces 9 to 11 bunches and 76 to 121 fruits, per year with the weight of 12.54 to 19.82 kg of copra per tree and 2.01 and 3.17t of copra per hectare. These values are statistically equal to those of PB121+ used as a control in the study. Progenies of d 5 , d6 , d8 , d11, d12, d15 and d18 give the best yields and similar to the control PB121+. VTT Parent Institution: produce an average of 11 bunches 96 fruits, and 11.62 kg of copra per tree and 1.66 t 1. Laboratoire de Biologie et of copra per hectare per year. Parent G1, G 4, G6, G7, G12, G15 and G16 have the best d’Amélioration des yield. Heterosis effects were observed for copra tree (42.08%) and copra per hectare Productions végétales, (50.04%). Parents that have better yields with best progenies can be selected for the UFR Sciences de la Nature, seed production of MYD x VTT (tolerant and good yield). MYD x VTT hybrid results are Université Nangui advised to Ivorian and Ghanaian farmers to prevent expansion of this disease. Abrogoua, 02 BP 801 Abidjan 02, Côte d'Ivoire.

3. Laboratoire de biochimie et science des aliments, Université Félix Houphouet Boigny, Abidjan, Côte d’Ivoire, 22 BP 582 Abidjan 22.

Corresponding author: Koffi Eric Blanchard Zadjéhi.

Email Id:

Web Address: http://jresearchbiology.com/ documents/RA0448.pdf

Journal of Research in Biology An International Scientific Research Journal

Abbreviations: Nbb: Number of bunches per year, NBFR: Number of fruits per year, Cop/ tree / year: copra produced per tree per year, Cop / hectare / year: copra produced per hectare per year., MYD: Malayan Yellow Dwarf, VTT: Vanuatu Tall, WAT: West African Tall MYD x VTT : Malayan Yellow Dwarf cross Vanuatu Tall, MYD x WAT+ : Malayan Yellow Dwarf cross improved West African Tall, Bunch.

Article Citation: Zadjéhi Eric-Blanchard KOFFI, Jean Louis Konan KONAN, Raoul Sylvère SIE, DidierMartial Saraka YAO, Yoboué KOFFI, Ysidor N’guessan KONAN, Emmanuel Auguste ISSALI, Thierry Lékadou Tacra, et Kouassi ALLOU. Assessment of the agronomic performance of Malayan Yellow Dwarf × Vanuatu Tall coconut (Cocos nucifera L.) hybrid variety tolerant to lethal yellowing disease of Ghana in Côte d’Ivoire. Journal of Research in Biology (2014) 4(6): 1427-1440 Dates: Received: 14 Mar 2014

Accepted: 04 Jul 2014

Published: 22 Aug 2014

This article is governed by the Creative Commons Attribution License (http://creativecommons.org/ licenses/by/2.0), which gives permission for unrestricted use, non-commercial, distribution and reproduction in all medium, provided the original work is properly cited.

1427-1440| JRB | 2014 | Vol 4 | No 6

www.jresearchbiology.com


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