Genetic diversity and selection index for yield in bambara groundnut (Vigna subterranea)
1987
Doku, E.V. (Ghana Univ., Legon (Ghana). Dept. of Crop Science) | Opoku-Asiama, Y. (Cape Coast Univ., Cape Coast (Ghana). School of Agriculture)
The genetic diversity of 49 cultivars of Vigna subterranea were evaluated for yield improvement using their agronomic characters to determine a selection index. A high genetic diversity was exhibited, the cultivars showing significant differences in all the agronomic characters evaluated. Similarity between phenotypic and their corresponding genotypic variances resulted in high broad-base heritabilities which ranged from 54% for number of pods per plant to 90% for the spread of plant base. Plant base spread contributed most to diversity. 100-seed weight was the best selection index for yield improvement
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