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Scholars Academic Journal of Biosciences | Volume-9 | Issue-01
Genetic Improvement of Okra [Abelmoschus Esculentus (L) Moench] Based on Agromorphological, Biochemical and Ethnobotanical Studies in Three Regions of Cameroon
Nsimi Mva Armand, Dabandata Célestin, Ngalle Bille Hermine, Molo Thierry, Bell Joseph Martin, Likeng –Li- Ngue Benoît-Constant
Published: Jan. 22, 2021 | 133 81
DOI: 10.36347/sajb.2021.v09i01.002
Pages: 10-21
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Abstract
The study has been carried out to contribute to the development of new improved varieties of okra nearest in characterization with those lovely by Cameroonian population, from 4 Local and 2 exotic varieties. An ethnobotanical survey of populations was made to highlight a variety of okra ideotype. The agromorphological, biochemical and organoleptical characteristics of created hybrids have been evaluated to identify hybrids with the best strengths. The result shown that, the ideotype of okra proposed by ethnobotanical survey is the one with a short development (early), a medium-sized cycle, an average density of seedlings in field, an average number of fruits per plant, fruits of medium size, dark green color and smooth aspect. These varieties must have medium-sized seeds, a small number of seeds per fruit, a bland taste and high viscosity. The manifestation of the hybrid vigor appears on seven of the eight created hybrids specifically, L3xL1 for the diameter of edible fruits (5.61%) and weight of 100 seeds (16.78%), CxL1 for the number of fruits per plant (38,54%), L3xL2P for the number of branches (65,86%) and the edible fruit diameter (7.40%), IxL1 for the mass of edible fruits (24.33%), L5xL2P for the number of branches (39.62%) and diameter of edible fruits (4,30%). Regarding the biochemical parameters, some hybrids namely L5xL2P, L5xL1, CxL1, L3x L1, L3xL2P and IxL2P for the rate of dry matter, L5xL1 for the rate of carbohydrate hybrid, L3xL2P, IxL2P, CxL1 and IxL1 for the rate of fiber showed a positive useful heterosis. The study therefore permits to the conclusion that L3xL2P and L5xL2P both with the maximum number of the character are near to the ideotype needed by Cameroonian population.