| Cowpea varieties | Number of germinated Alectra seeds on the 3 WAP root media | Number of germinated Alectra seeds on the 4 WAP root media |
| Mkanakaufiti | 0.707a | 10.610a |
| IT99K-7-21-2-2XIT82E-16 | 2.151bc | 11.500ab |
| IT82E-16 | 1.651ab | 11.730ab |
| Sudan 1 | 3.360c | 13.310b |
| LSD 5% | 1.420 | 1.842 |
| F-prob. | 0.011 | 0.048 |
| Grand mean | 1.970 | 11.790 |
| CV % | 52.400 | 11.300 |