Genetic Variability Heritability and Expected Genetic Advance in Peanut (Arachis hypogaea L.) Genotypes at Pawe, Northwestern Ethiopia

Abstract

Peanut (Arachis hypogaea L.) is one of the most significant oil seed crop of the world and the second most important source of vegetable oil in Ethiopia. But productivity is insufficient as compared to the world average productivity because of low genetic variability, biotic and abiotic stress, and poor seed system. This experiment was designed to evaluate genetic variability for 64 groundnut genotypes using 8x8 simple lattice design at Pawe northwestern Ethiopia, in 2021/22.The objectives of the study were to estimate the genetic variability among the genotypes. Analysis of variance revealed that, there was highly significant difference among the sixty four genotypes for all traits studied. Kernel yield showed the highest GCV and PCV values, while the lowest was seen in the shelling %.Harvest index (41.13), number of branches per plant (39.79), number of pods per plant (42.96), hundred seed weight (42.70), kernel yield (41.97), biomass yield (41.78), and pod yield (42.96) all showed moderate heritability and high genetic progress as a percentage of the mean (35.55). The results of this study showed that the genotypes had enough variation, therefore there was a good chance of identifying genotypes for future breeding programs that would be promising.

DOI: 10.7176/JNSR/14-7-04

Publication date:May 31^st 2023