Evaluation of adaptation and yield stability of cocoa progenies in marginal conditions: Results from an on farm cocoa trial set up in a forest-savannah transition area in Cameroon
Cocoa is an important crop in Cameroon, where it is cultivated in different areas, including marginal areas, characterized by a rather low level of annual rainfall and marked dry seasons. In order to release cocoa varieties with a good level of adaptation to these marginal conditions, nine full-sib progenies, already released to farmers in other producing areas of the country, were assessed on twelve on farm cocoa plots, set up in 2006, in Mbam et Inoubou county, which is a forest–savannah transition zone. The traits assessed were mortality rate, yield and yield stability. Mortality rate and yield vary widely among trial plots and among progenies. Four out of the nine assessed progenies present a yield level significantly higher than the five others. The lowest level of yield stability (estimated by the contribution to total ecovalence) was observed in both the highest and the lowest yielding progenies. Recommendation for the large-scale release of these progenies to farmers of the county, and to other cocoa producing forest–savannah transition areas, are made, based on the results obtained from this study.
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Subjects: | F01 - Culture des plantes, F08 - Systèmes et modes de culture, F60 - Physiologie et biochimie végétale, Theobroma cacao, rendement des cultures, descendance, tolérance à la sécheresse, mortalité, savane, forêt, http://aims.fao.org/aos/agrovoc/c_7713, http://aims.fao.org/aos/agrovoc/c_10176, http://aims.fao.org/aos/agrovoc/c_16019, http://aims.fao.org/aos/agrovoc/c_14914, http://aims.fao.org/aos/agrovoc/c_4945, http://aims.fao.org/aos/agrovoc/c_6825, http://aims.fao.org/aos/agrovoc/c_3062, http://aims.fao.org/aos/agrovoc/c_1229, |
Online Access: | http://agritrop.cirad.fr/598514/ http://agritrop.cirad.fr/598514/1/crops-01-00004-1.pdf |
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dig-cirad-fr-5985142024-01-29T03:34:59Z http://agritrop.cirad.fr/598514/ http://agritrop.cirad.fr/598514/ Evaluation of adaptation and yield stability of cocoa progenies in marginal conditions: Results from an on farm cocoa trial set up in a forest-savannah transition area in Cameroon. Feumba De Tchoua Le Blanc, Sounigo Olivier, Bourgoing Raymond, Efombagn Mousseni Ives Bruno, Abolo Dieudonné, Ambang Zachée, Cilas Christian. 2021. Crops, 1 (1) : 20-29.https://doi.org/10.3390/crops1010004 <https://doi.org/10.3390/crops1010004> Evaluation of adaptation and yield stability of cocoa progenies in marginal conditions: Results from an on farm cocoa trial set up in a forest-savannah transition area in Cameroon Feumba De Tchoua, Le Blanc Sounigo, Olivier Bourgoing, Raymond Efombagn, Mousseni Ives Bruno Abolo, Dieudonné Ambang, Zachée Cilas, Christian eng 2021 Crops F01 - Culture des plantes F08 - Systèmes et modes de culture F60 - Physiologie et biochimie végétale Theobroma cacao rendement des cultures descendance tolérance à la sécheresse mortalité savane forêt http://aims.fao.org/aos/agrovoc/c_7713 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_16019 http://aims.fao.org/aos/agrovoc/c_14914 http://aims.fao.org/aos/agrovoc/c_4945 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_3062 Cameroun http://aims.fao.org/aos/agrovoc/c_1229 Cocoa is an important crop in Cameroon, where it is cultivated in different areas, including marginal areas, characterized by a rather low level of annual rainfall and marked dry seasons. In order to release cocoa varieties with a good level of adaptation to these marginal conditions, nine full-sib progenies, already released to farmers in other producing areas of the country, were assessed on twelve on farm cocoa plots, set up in 2006, in Mbam et Inoubou county, which is a forest–savannah transition zone. The traits assessed were mortality rate, yield and yield stability. Mortality rate and yield vary widely among trial plots and among progenies. Four out of the nine assessed progenies present a yield level significantly higher than the five others. The lowest level of yield stability (estimated by the contribution to total ecovalence) was observed in both the highest and the lowest yielding progenies. Recommendation for the large-scale release of these progenies to farmers of the county, and to other cocoa producing forest–savannah transition areas, are made, based on the results obtained from this study. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/598514/1/crops-01-00004-1.pdf text Cirad license info:eu-repo/semantics/openAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.3390/crops1010004 10.3390/crops1010004 info:eu-repo/semantics/altIdentifier/doi/10.3390/crops1010004 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.3390/crops1010004 |
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F01 - Culture des plantes F08 - Systèmes et modes de culture F60 - Physiologie et biochimie végétale Theobroma cacao rendement des cultures descendance tolérance à la sécheresse mortalité savane forêt http://aims.fao.org/aos/agrovoc/c_7713 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_16019 http://aims.fao.org/aos/agrovoc/c_14914 http://aims.fao.org/aos/agrovoc/c_4945 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_1229 F01 - Culture des plantes F08 - Systèmes et modes de culture F60 - Physiologie et biochimie végétale Theobroma cacao rendement des cultures descendance tolérance à la sécheresse mortalité savane forêt http://aims.fao.org/aos/agrovoc/c_7713 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_16019 http://aims.fao.org/aos/agrovoc/c_14914 http://aims.fao.org/aos/agrovoc/c_4945 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_1229 |
spellingShingle |
F01 - Culture des plantes F08 - Systèmes et modes de culture F60 - Physiologie et biochimie végétale Theobroma cacao rendement des cultures descendance tolérance à la sécheresse mortalité savane forêt http://aims.fao.org/aos/agrovoc/c_7713 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_16019 http://aims.fao.org/aos/agrovoc/c_14914 http://aims.fao.org/aos/agrovoc/c_4945 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_1229 F01 - Culture des plantes F08 - Systèmes et modes de culture F60 - Physiologie et biochimie végétale Theobroma cacao rendement des cultures descendance tolérance à la sécheresse mortalité savane forêt http://aims.fao.org/aos/agrovoc/c_7713 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_16019 http://aims.fao.org/aos/agrovoc/c_14914 http://aims.fao.org/aos/agrovoc/c_4945 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_1229 Feumba De Tchoua, Le Blanc Sounigo, Olivier Bourgoing, Raymond Efombagn, Mousseni Ives Bruno Abolo, Dieudonné Ambang, Zachée Cilas, Christian Evaluation of adaptation and yield stability of cocoa progenies in marginal conditions: Results from an on farm cocoa trial set up in a forest-savannah transition area in Cameroon |
description |
Cocoa is an important crop in Cameroon, where it is cultivated in different areas, including marginal areas, characterized by a rather low level of annual rainfall and marked dry seasons. In order to release cocoa varieties with a good level of adaptation to these marginal conditions, nine full-sib progenies, already released to farmers in other producing areas of the country, were assessed on twelve on farm cocoa plots, set up in 2006, in Mbam et Inoubou county, which is a forest–savannah transition zone. The traits assessed were mortality rate, yield and yield stability. Mortality rate and yield vary widely among trial plots and among progenies. Four out of the nine assessed progenies present a yield level significantly higher than the five others. The lowest level of yield stability (estimated by the contribution to total ecovalence) was observed in both the highest and the lowest yielding progenies. Recommendation for the large-scale release of these progenies to farmers of the county, and to other cocoa producing forest–savannah transition areas, are made, based on the results obtained from this study. |
format |
article |
topic_facet |
F01 - Culture des plantes F08 - Systèmes et modes de culture F60 - Physiologie et biochimie végétale Theobroma cacao rendement des cultures descendance tolérance à la sécheresse mortalité savane forêt http://aims.fao.org/aos/agrovoc/c_7713 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_16019 http://aims.fao.org/aos/agrovoc/c_14914 http://aims.fao.org/aos/agrovoc/c_4945 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_1229 |
author |
Feumba De Tchoua, Le Blanc Sounigo, Olivier Bourgoing, Raymond Efombagn, Mousseni Ives Bruno Abolo, Dieudonné Ambang, Zachée Cilas, Christian |
author_facet |
Feumba De Tchoua, Le Blanc Sounigo, Olivier Bourgoing, Raymond Efombagn, Mousseni Ives Bruno Abolo, Dieudonné Ambang, Zachée Cilas, Christian |
author_sort |
Feumba De Tchoua, Le Blanc |
title |
Evaluation of adaptation and yield stability of cocoa progenies in marginal conditions: Results from an on farm cocoa trial set up in a forest-savannah transition area in Cameroon |
title_short |
Evaluation of adaptation and yield stability of cocoa progenies in marginal conditions: Results from an on farm cocoa trial set up in a forest-savannah transition area in Cameroon |
title_full |
Evaluation of adaptation and yield stability of cocoa progenies in marginal conditions: Results from an on farm cocoa trial set up in a forest-savannah transition area in Cameroon |
title_fullStr |
Evaluation of adaptation and yield stability of cocoa progenies in marginal conditions: Results from an on farm cocoa trial set up in a forest-savannah transition area in Cameroon |
title_full_unstemmed |
Evaluation of adaptation and yield stability of cocoa progenies in marginal conditions: Results from an on farm cocoa trial set up in a forest-savannah transition area in Cameroon |
title_sort |
evaluation of adaptation and yield stability of cocoa progenies in marginal conditions: results from an on farm cocoa trial set up in a forest-savannah transition area in cameroon |
url |
http://agritrop.cirad.fr/598514/ http://agritrop.cirad.fr/598514/1/crops-01-00004-1.pdf |
work_keys_str_mv |
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