Table 9.
Summary of the cluster analysis showing the source of the assessed 334 sorghum germplasm collections, number of genotypes, and mean values for 11 phenotypic traits.
| Variable | Cluster I |
Cluster II |
Cluster III |
Cluster IV |
|---|---|---|---|---|
| Number of genotypes | ||||
| Source of genotypes | ||||
| Kenya | 54 | 71 | 35 | 63 |
| Sudan | 3 | 10 | 11 | 11 |
| Tanzania | 18 | 12 | 6 | 10 |
| Uganda | 15 | 11 | 1 | 3 |
| Total | 90 | 104 | 53 | 87 |
| Traits | ||||
| Grain yield (kg/ha) | 1484.5 | 2397.4 | 3247.0 | 4108.3 |
| 100 Seed weight (gm) | 1.8 | 2.1 | 2.2 | 2.6 |
| Plant height (cm) | 286.6 | 272.1 | 245.2 | 229.4 |
| Panicle length (cm) | 27.1 | 24.2 | 23.3 | 22.5 |
| Panicle width (cm) | 5.2 | 5.7 | 5.9 | 6.4 |
| Rachis number | 55.4 | 52.4 | 48.6 | 47.6 |
| Days to 50% flowering | 88.5 | 83.5 | 78.8 | 74.4 |
| Grain filling duration (days) | 41.3 | 38.6 | 38.1 | 38.6 |
| Days to 75% maturity (days) | 129.8 | 122.1 | 116.9 | 113.0 |
| Grain Iron (ppm) | 42.4 | 36.8 | 38.0 | 34.8 |
| Grain Zinc (ppm) | 18.5 | 19.0 | 17.6 | 17.2 |