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Evaluation of New High-Producing Hybrids of Cocoa Trees in Marginal Crop Areas in Côte d’Ivoire
Laboratory for Agricultural Production Improvement, Agroforestry Research and Training Unit, Jean Lorougnon Guede University, Daloa, Côte d’Ivoire
Laboratory of Genetics, Divo Research Station, National Center for Agronomic Research (CNRA), Divo, Ivory Coast
Laboratory of Genetics, Divo Research Station, National Center for Agronomic Research (CNRA), Divo, Ivory Coast
CIRAD, Center for International Cooperation in Agricultural Research for Development, Montpellier, France
Laboratory for Agricultural Production Improvement, Agroforestry Research and Training Unit, Jean Lorougnon Guede University, Daloa, Côte d’Ivoire
- 1 Laboratory for Agricultural Production Improvement, Agroforestry Research and Training Unit, Jean Lorougnon Guede University, Daloa, Côte d’Ivoire
- 2 Laboratory of Genetics, Divo Research Station, National Center for Agronomic Research (CNRA), Divo, Ivory Coast
- 3 Laboratory of Genetics, Divo Research Station, National Center for Agronomic Research (CNRA), Divo, Ivory Coast
- 4 CIRAD, Center for International Cooperation in Agricultural Research for Development, Montpellier, France
- 5 Laboratory for Agricultural Production Improvement, Agroforestry Research and Training Unit, Jean Lorougnon Guede University, Daloa, Côte d’Ivoire
Agricultural Sciences·Volume 12 (2021)·Pages 1508–1526·Published 13 December 2021·DOI10.4236/as.2021.1212096
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Abstract
A study was carried out on 31 new hybrids in rain-deficient areas of C ô te d’Ivoire. These areas were the regions of Djekanou, Toumodi and Yamoussoukro. The Divo region (favourable zone) was used as a control. The aim of this study was to determine the behaviour of these hybrids under drought conditions. The experimental setup was a Fischer block for each region. The treatments were the 31 families, with 3 replications and when the four regions were taken together, the study was a two-factor (region and family) trial. Drought caused increased mortality and specific leaf mass and reduced growth and development of progeny in rain-deficient areas. Five (5) progenies were found to be jointly successful in Divo, Djekanou and Yamoussoukro (F30, F15, F19, F31, and F33). On the other hand, 3 other families (F16, F36 and F29) also performing well in Divo were found in Toumodi.
KeywordsDroughtResistant Hybrids<i>Theombro cacao</i>Côte d’Ivoire
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