Breeding cassava genotypes for early maturity, high starch content, dry matter content and resistance to biotic and abiotic stress
Abstract
A two year field trial was conducted to evaluate the performance of some cassava genotypes under the uniform yield trial for early maturity, high starch and dry matter content and resistance to biotic and abiotic stress at National Root Crops Research Institute, Umudike. The trial is a randomized complete block design experiment replicated three times. Ten cassava genotypes and two standard checks were used. Disease, yield and yield component data were collected and statistical analysis performed. The result of the analysis showed that varieties has significant (p<0.05) diversities for biotic stress, yield, dry matter and starch content with most of the varieties showing disease free or tolerance to biotic stress. Variety NR04/0071 showed the highest value for yield and dry matter but variety NR04/0351 showed the highest starch content while variety NR04/0081 showed the least starch content for the two years.
Keywords: Cassava breeding, dry matter content, biotic and abiotic stress
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