Table 1.
Analyses of variance for plant height (m), branches plant−1, pods plant−1, seeds pod−1, 100 seed weight (g), seed yield (t ha−1), seed zinc (Zn) concentration (mg kg−1), and seed Zn uptake (g ha−1) of pigeonpea genotypes for two years separately and pooled. F-ratio indicates ratio of two variances, LSD = least significant difference, CV = coefficient of variation, NS = not significant at p < 0.05, * = significant at p < 0.05.
| Parameters | Factors | Plant Height | Branches Plant−1 | Pods Plant−1 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| First Year | Second Year | Pooled | First Year | Second Year | Pooled | First Year | Second Year | Pooled | ||
| F-ratio (calculated) | Year | - | - | 0.43 | - | - | 0.75 | - | - | 0.62 |
| Zinc level (Zn) | 0.25 | 0.23 | 0.50 | 135.1 | 146.2 | 254.3 | 114.2 | 132.5 | 217.8 | |
| Genotypes (G) | 0.26 | 0.25 | 0.49 | 0.35 | 8.24 | 9.36 | 1.21 | 5.86 | 6.25 | |
| Zn x G | 0.32 | 0.41 | 0.11 | 0.43 | 1.58 | 0.67 | 0.25 | 1.11 | 0.87 | |
| LSD (p < 0.05) | Year | - | - | NS | - | - | NS | - | - | NS |
| Zinc level (Zn) | * | * | * | * | * | * | * | * | * | |
| Genotypes (G) | * | * | * | * | * | * | * | * | * | |
| Zn x G | NS | NS | NS | NS | NS | NS | NS | NS | NS | |
| CV% | Year | - | - | 5.84 | - | - | 7.75 | - | - | 9.35 |
| Zinc level (Zn) | 10.1 | 14.2 | 11.5 | 8.94 | 8.51 | 9.58 | 8.54 | 13.21 | 12.14 | |
| Genotypes(G) | 9.89 | 13.2 | 12.5 | 10.5 | 11.5 | 12.7 | 15.2 | 13.8 | 14.8 | |
| Seeds pod−1 | 100 seed weight | Seed yield | ||||||||
| First year | Second year | Pooled | First year | Second year | Pooled | First year | Second year | Pooled | ||
| F-ratio (calculated) | Year | - | - | 0.42 | - | - | 0.35 | - | - | 0.15 |
| Zinc level (Zn) | 0.21 | 0.19 | 0.35 | 0.31 | 0.25 | 0.34 | 0.12 | 0.21 | 0.22 | |
| Genotypes (G) | 0.31 | 0.24 | 0.37 | 0.38 | 0.30 | 0.40 | 0.15 | 0.20 | 0.27 | |
| Zn x G | 0.41 | 0.35 | 0.17 | 0.45 | 0.47 | 0.25 | 0.28 | 0.27 | 0.31 | |
| LSD (p < 0.05) | Year | - | - | NS | - | - | NS | - | - | NS |
| Zinc level (Zn) | * | * | * | * | * | * | * | * | * | |
| Genotypes (G) | * | * | * | * | * | * | * | * | * | |
| Zn x G | NS | NS | NS | NS | NS | NS | NS | NS | NS | |
| CV% | Year | - | - | 9.85 | - | - | 10.1 | - | - | 12.4 |
| Zinc level (Zn) | 10.1 | 10.5 | 9.65 | 9.85 | 10.1 | 10.5 | 11.4 | 10.8 | 14.9 | |
| Genotypes(G) | 8.59 | 11.54 | 10.4 | 10.4 | 11.2 | 12.5 | 12.4 | 11.7 | 13.5 | |
| Seed Zn concentration | Seed Zn uptake | |||||||||
| First year | Second year | Pooled | First year | Second year | Pooled | |||||
| F-ratio (calculated) | Year | - | - | 1.21 | - | - | 2.56 | |||
| Zinc level (Zn) | 71.5 | 85.4 | 135.6 | 114.2 | 175.3 | 341.7 | ||||
| Genotypes (G) | 2.54 | 3.12 | 7.45 | 2.11 | 5.87 | 9.14 | ||||
| Zn x G | 0.34 | 0.47 | 0.18 | 0.58 | 0.98 | 0.21 | ||||
| LSD (p < 0.05) | Year | - | - | NS | - | - | NS | |||
| Zinc level (Zn) | * | * | * | * | * | * | ||||
| Genotypes (G) | * | * | * | * | * | * | ||||
| Zn x G | NS | NS | NS | NS | NS | NS | ||||
| CV% | Year | - | - | 9.78 | - | - | 8.74 | |||
| Zinc level (Zn) | 7.45 | 9.13 | 9.41 | 10.1 | 11.5 | 12.4 | ||||
| Genotypes(G) | 9.14 | 10.1 | 10.8 | 9.56 | 10.7 | 11.9 | ||||