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Phenotypic diversity, uses and management of local varieties of Corchorus olitorius L. from central Benin

Research Paper | July 1, 2017

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Arlette Adjatin, Donald Balogoun, Laura Loko, Djengue Wilfrid, Bonou-gbo Zaki, Honnankpon Yedomonhan, Alexandre Dansi, Akpovi Akoégninou, Koffi Akpagana

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J. Bio. Env. Sci.11( 1), 81-96, July 2017


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Corchorus olitorius L. is a grown traditional leafy vegetable that contributes highly to food and nutritional security and to poverty reduction in Benin. Unfortunately, its culture is confronted with many undocumented constraints that limit its production. In order to collect information that will help to preserve its diversity, ethno botanical investigations and germination tests were conducted. Nine production constraints of C. olitorius were identified among which the most important are the susceptibility to drought, low productivity, lack of quality seeds, rot of seeds and susceptibility to insects. In total, 34 varieties of C. olitorius and 28 vernacular names were identified in the study area. The shape and nature of leaves are the most parameters used for denomination of C. olitorius varieties. Based on denomination criteria, 7 morphtypes were identified. Varieties are selected following 11 criteria of preference. Most producers used local seeds stored in eight materials. Among these, pieces of cloth (42.62% of responses), polythene bag (29.3% of responses) and piece of paper (10.52% of responses) are the most used. Apart from food uses, C. olitorius has medicinal properties and is relatively rich in iron that would prevent anemia especially among children from 0 to 5 years. A significant difference (p≤0.05) is observed between the germination rates of the seed morphotypes studied, indicating the necessity to provide quality seed to producers. The implementation of a varietal improvement program and seed production according to the criteria of preference of producers is highly recommended for a better production of C. olitorius in Benin.


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Phenotypic diversity, uses and management of local varieties of Corchorus olitorius L. from central Benin

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