Table 4. Means, standard deviations (SD), coefficients of variation (CV) and t-test results (P, in bold) for the agronomic morphological traits for the four different sub-groups within the Upper Guinea Coast.
| Botanical group | Glaberrima | Indica | Japonica | Cluster 4 | Cluster 4-1 | ||||||
| Region / sub-cluster | UpperGc | Upper-Other | UpperGc | Upper-Other | UpperGB | UpperSL | Cluster4-2 | Cluster4-1 | 4-1Erect | 4-1 Semi-droopy | |
| Trait | N | 19 | 13 | 13 | 12 | 18 | 28 | 13 | 18 | 8 | 10 |
| Culm length (cm) | Mean | 89.3 | 82.1 | 84.9 | 82.6 | 83.9 | 81.6 | 76.3 | 83.3 | 83.6 | 83.0 |
| SD | 5.66 | 5.32 | 4.76 | 5.39 | 6.83 | 4.98 | 5.23 | 5.32 | 4.13 | 6.33 | |
| CV (%) | 6.34 | 6.48 | 5.61 | 6.53 | 8.14 | 6.11 | 6.86 | 6.39 | 4.94 | 7.63 | |
| P | 0.001 | 0.260 | 0.198 | 0.001 | 0.826 | ||||||
| Plant height (cm) | Mean | 112.8 | 105.2 | 107.1 | 104.3 | 105.1 | 103.2 | 97.9 | 104.6 | 104.3 | 104.9 |
| SD | 6.25 | 5.80 | 4.70 | 5.84 | 7.95 | 5.68 | 5.76 | 6.04 | 4.51 | 7.28 | |
| CV (%) | 5.54 | 5.52 | 4.39 | 5.60 | 7.57 | 5.50 | 5.89 | 5.77 | 4.32 | 6.94 | |
| P | 0.001 | 0.192 | 0.349 | 0.004 | 0.834 | ||||||
| Paniclelength (cm) | Mean | 23.6 | 23.3 | 22.2 | 21.7 | 21.1 | 21.6 | 21.6 | 21.4 | 20.7 | 22.0 |
| SD | 1.08 | 1.57 | 1.05 | 1.17 | 2.06 | 2.23 | 0.98 | 1.43 | 1.13 | 1.44 | |
| CV (%) | 4.59 | 6.75 | 4.76 | 5.38 | 9.75 | 10.32 | 4.55 | 6.68 | 5.47 | 6.57 | |
| P | 0.543 | 0.352 | 0.479 | 0.642 | 0.060 | ||||||
| Leaf length (cm) | Mean | 43.1 | 41.1 | 43.6 | 41.5 | 46.1 | 46.3 | 38.5 | 45.6 | 48.2 | 43.6 |
| SD | 1.77 | 3.01 | 2.04 | 2.82 | 4.05 | 4.03 | 4.21 | 3.45 | 3.34 | 1.84 | |
| CV (%) | 4.10 | 7.32 | 4.68 | 6.79 | 8.77 | 8.70 | 10.93 | 7.55 | 6.94 | 4.22 | |
| P | 0.043 | 0.041 | 0.892 | 0.000 | 0.002 | ||||||
| Leaf width | Mean | 1.49 | 1.40 | 1.08 | 1.05 | 1.51 | 1.62 | 1.04 | 1.01 | 1.05 | 0.98 |
| SD | 0.13 | 0.07 | 0.15 | 0.14 | 0.23 | 0.18 | 0.18 | 0.09 | 0.09 | 0.09 | |
| CV (%) | 8.92 | 4.72 | 13.99 | 13.76 | 15.08 | 10.85 | 17.11 | 9.22 | 8.26 | 9.13 | |
| P | 0.030 | 0.633 | 0.087 | 0.672 | 0.104 | ||||||
| # tillers/plant | Mean | 4.7 | 5.0 | 4.7 | 4.3 | 3.2 | 3.1 | 4.2 | 4.7 | 4.9 | 4.6 |
| SD | 0.66 | 0.97 | 0.63 | 0.66 | 0.61 | 0.56 | 1.02 | 0.63 | 0.47 | 0.74 | |
| CV (%) | 13.85 | 19.51 | 13.62 | 15.31 | 19.32 | 18.05 | 24.44 | 13.45 | 9.73 | 16.14 | |
| P | 0.367 | 0.240 | 0.874 | 0.101 | 0.391 | ||||||
| # panicles/plant | Mean | 4.3 | 4.4 | 4.1 | 3.8 | 2.7 | 2.7 | 3.6 | 4.2 | 4.3 | 4.1 |
| SD | 0.43 | 1.00 | 0.57 | 0.54 | 0.48 | 0.44 | 0.92 | 0.72 | 0.57 | 0.84 | |
| CV (%) | 9.91 | 22.79 | 13.90 | 14.38 | 17.83 | 16.42 | 25.84 | 17.44 | 13.32 | 20.83 | |
| P | 0.808 | 0.128 | 0.819 | 0.049 | 0.529 | ||||||
| Average 200 seed weight (g) | Mean | 4.04 | 4.35 | 4.73 | 4.93 | 5.03 | 4.58 | 3.73 | 3.59 | 4.37 | 2.96 |
| SD | 0.20 | 0.54 | 0.49 | 0.21 | 0.67 | 0.61 | 0.61 | 0.79 | 0.30 | 0.39 | |
| CV (%) | 4.95 | 12.41 | 10.29 | 4.28 | 13.36 | 13.31 | 16.27 | 22.16 | 6.81 | 13.14 | |
| P | 0.064 | 0.196 | 0.024 | 0.580 | 0.000 | ||||||
| Seed length (mm) | Mean | 8.37 | 8.45 | 8.98 | 8.78 | 8.95 | 8.43 | 8.13 | 7.51 | 8.20 | 6.96 |
| SD | 0.32 | 0.25 | 0.54 | 0.66 | 0.72 | 0.84 | 0.51 | 0.82 | 0.25 | 0.68 | |
| CV (%) | 3.82 | 2.96 | 6.00 | 7.51 | 8.01 | 9.92 | 6.28 | 10.90 | 3.05 | 9.78 | |
| P | 0.469 | 0.425 | 0.035 | 0.015 | 0.000 | ||||||
| Seed width (mm) | Mean | 2.96 | 3.12 | 2.96 | 3.15 | 3.20 | 3.27 | 2.84 | 2.90 | 3.09 | 2.74 |
| SD | 0.08 | 0.14 | 0.15 | 0.28 | 0.31 | 0.32 | 0.40 | 0.21 | 0.04 | 0.16 | |
| CV (%) | 2.70 | 4.49 | 4.92 | 9.01 | 9.69 | 9.71 | 14.07 | 7.36 | 1.26 | 5.98 | |
| P | 0.002 | 0.062 | 0.469 | 0.632 | 0.000 | ||||||
| Average CV (%) | 5.9 | 8.5 | 7.5 | 8.0 | 10.7 | 9.9 | 12.0 | 9.7 | 5.8 | 9.1 | |
UpperSL = material from Sierra Leone; UpperGB = material from Guinea Bissau; UpperGc = material from Guinea; Cluster 4-1 = material belonging to the sub-cluster of Cluster 4 with erect and semi-droopy panicles; Cluster 4-2 = material belonging to the sub-cluster of Cluster 4 with droopy panicles; 4-1 Erect = material of Cluster 4-1 with erect panicle; 4-1 semi droopy = material belonging to Cluster 4-1 with semi-droopy panicle.