Table 3 Estimates of variance components and genetic parameters for yield and yield components among 100 cowpea genotypes evaluated in two locations in Zambia
Component | DTF | DTM | PDL | NPP | NSP | SDS | HSW | GYD |
|---|---|---|---|---|---|---|---|---|
Genotype (G) | 21.75 | 9.27 | 0.00 | 0.00 | 0.42 | 0.38 | 0.57 | 0.10 |
Location (L) | 148.31 | 125.56 | 11.10 | 50.46 | 8.65 | 1.78 | 7.48 | 0.23 |
G x L | 6.32 | 0.00 | 2.01 | 10.43 | 1.30 | 0.00 | 0.34 | 0.00 |
Total (G + L + G x L) | 176.38 | 134.83 | 13.12 | 60.89 | 10.37 | 2.17 | 8.39 | 0.34 |
Phenotypic variance | 61.99 | 40.66 | 3.78 | 17.83 | 3.23 | 0.83 | 2.61 | 0.16 |
Heritability (%) | 35.00 | 23.00 | 0.00 | 0.00 | 13.00 | 46.00 | 22.00 | 64.00 |
GCV (%) | 11.35 | 4.12 | 0.00 | 0.00 | 4.14 | 14.68 | 5.82 | 0.04 |
PCV (%) | 19.16 | 8.63 | 10.82 | 19.73 | 11.52 | 21.58 | 12.48 | 0.05 |
GA | 5.69 | 2.99 | 0.00 | 0.00 | 0.48 | 0.87 | 0.72 | 0.53 |
GA (%) | 13.85 | 4.05 | 0.00 | 0.00 | 3.07 | 20.58 | 5.60 | 0.07 |