| Cultivar (C) | TPDM (g plant−1) | SDM (g) | RDM (g) | FDM (g) |
| HT | 186.7a | 78.2a | 19.7a | 88.8a |
| Lebombo | 106.5b | 50.3b | 16.4b | 42.7c |
| Jaguar | 110.4b | 32.8c | 17.4b | 57.4b |
| HSD(0.05) | 9.9 | 5.7 | 2.4 | 7.7 |
| Plant density (PD) | ||||
| High | 134.1a | 53.7a | 18.1a | 62.3a |
| Low | 134.9a | 53.8a | 17.5a | 63.6a |
| HSD(0.05) | 8.1 | 4.7 | 1.9 | 6.3 |
| C × PD | ||||
| HT × high | 186.2a | 79.2a | 19.6ab | 87.4a |
| HT × low | 187.1a | 77.1a | 19.9a | 90.1a |
| Lebombo × high | 111.6b | 50.2b | 18.7ab | 42.7c |
| Lebombo × low | 109.3b | 50.5b | 16.0b | 42.7c |
| Jaguar × high | 104.5b | 31.8c | 16.0b | 56.7b |
| Jaguar × low | 108.4b | 33.8c | 16.7ab | 57.9b |
| HSD(0.05) | 14 | 8.1 | 3.4 | 10.9 |