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Nigeria Agricultural Journal

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Evaluation of post harvest physiological deterioration from cassava wild relative (Manihot walkarae) for genetic improvement

F Ewa

Abstract


Crop wild relatives offer a great opportunity for plant breeders by providing a valuable source of genes that can be used to develop crops of valuable traits. Root of seventy one Genotypes from second backcross (BC2) population from wild relative, Manihot walkerae were evaluated for postharvest physiological deterioration in two cropping seasons in National Root Crops Research Institute (NRCRI) Umudike 7, 14 and 30 days after harvest. Results showed that most of the genotypes were highly tolerant (0-5%) and partially tolerant (5-35%) to ppd. Result also showed that two genotypes attained zero ppd at 30 days after harvest in half sib populations B1PD 280 and B1PD 289 respectively.

Keywords: Backcrosses, PPD and Genotypes




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