Table 3.
The Effects of Virus Inoculum and Stage of Plant Growth at the Time of Inoculation on Growth and Yield of Cowpea Cultivar "OLOYIN" Cultivar
| INOCULUM | API | Plant height(cm) | No. of Leaves | No. of Flowers | No. of Pods | Pod length(cm) | Seed no./pod | Seed Weight(g) |
| CABMV | 10 | 24.9b | 11.1b | 0.0* | 0.0 | 0.0 | 0.0 | 0.0 |
| 30 | 33.8ab | 20.9b | 3.7b | 3.0b | 9.6a | 6.7a | 0.09b | |
| CMeV | 10 | 23.1b | 6.9c | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| 30 | 27.7b | 17.1b | 3.3b | 2.0b | 7.1b | 2.0b | 0.01c | |
| SBMV | 10 | 28.2b | 17.2b | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| 30 | 40.4a | 18.0b | 2.3b | 1.3b | 10.2a | 6.7a | 0.1b | |
| CABMV+ | 10 | 11.9c | 5.7c | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| CMeV | 30 | 26.7b | 13.6b | 1.3b | 1.0b | 5.2b | 3.3ab | 0.06b |
| CABMV+ | 10 | 12.4c | 17.9b | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| SBMV | 30 | 30.4b | 22.1a | 2.0b | 1.7b | 4.1b | 2.7b | 0.05b |
| CMeV+ | 10 | 7.8c | 12.8b | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| SBMV | 30 | 23.8b | 23.4a | 3.0b | 2.0b | 4.0b | 1.7b | 0.09b |
| CABMV+ | 10 | 8.1c | 9.3c | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| C MeV+ | 30 | 12.2c | 14.4b | 1.0b | 0.0 | 0.0 | 0.0 | 0.0 |
| SBMV | 10 | 29.7b | 18.9b | 6.0a | 5.3a | 9.3a | 4.3a | 0.145a |
| BUFFER | 30 | 42.7a | 25.0a | 7.0a | 6.3a | 10.0a | 5.3a | 0.145a |
API-Age of plant at inoculation; CABMV-Cowpea aphid-borne mosaic virus, CMeV-Cowpea mottle virus, SBMV-Southern bean mosaic virus.
Each value is the mean of 3 replicates. In each column means followed by the same letter are not significantly different (P < 0.05) according to Duncan's multiple range test.
*All zero (0) values carry the letter c according to Duncan's multiple range test.