Table 2 Symbiotic performance, dry matter and grain yield of 9 cowpea varieties grown in Wa, Ghana.
Genotype | Nodule number | Nodule DM | Shoot DM | δ15N | Ndfa |
|---|---|---|---|---|---|
per plant | mg.plant -1 | g.plant -1 | ‰ | % | |
Omondaw | 35.0 ± 0.3b | 1200.0 ± 57.7c | 25.9 ± 3.7ab | -0.57 ± 0.2e | 86.6 ± 0.1a |
Brown eye | 15.4 ± 0.3d | 366.7 ± 33.3d | 13.5 ± 1.6cd | 0.30 ± 0.1d | 76.8 ± 1.6c |
Apagbaala | 16.5 ± 1.4d | 466.7 ± 33.3d | 25.7 ± 2.8ab | 0.76 ± 0.1bc | 71.6 ± 1.3de |
IT82D-889 | 41.3 ± 0.3a | 2666.7 ± 66.7a | 18.9 ± 1.4bc | -0.21 ± 0.1de | 82.6 ± 1.6b |
ITH98-46 | 26.6 ± 1.2c | 500.0 ± 0.0d | 8.8 ± 0.3d | 0.50 ± 0.0cd | 74.6 ± 0.2cd |
Bechuana white | 43.0 ± 0.8a | 1733.3 ± 33.3b | 18.7 ± 4.0bc | 0.76 ± 0.1bc | 71.6 ± 0.6de |
Glenda | 34.0 ± 1.4b | 1733.3 ± 88.2b | 27.7 ± 2.3a | 0.81 ± 0.1a | 70.7 ± 0.3e |
Mamlaka | 34.3 ± 1.5b | 100.0 ± 11.0e | 12.6 ± 2.0cd | 1.00 ± 0.1a | 69.3 ± 0.8e |
Fahari | 36.0 ± 0.8b | 100.0 ± 10.0e | 16.9 ± 1.2c | 0.96 ± 0.2a | 69.9 ± 1.8e |
F-statistics | 97.5*** | 384*** | 7.4*** | 29.4*** | 29.4*** |
N content | Grain yield | N-fixed | |||
mg.plant -1 | kg.ha -1 | mg.plant -1 | kg.ha -1 | ||
Omondaw | 1077.5 ± 130.2ab | 791.2 ± 144.8a | 933.8 ± 111.8a | 155.6 ± 18.6a | |
Brown eye | 705.5 ± 97.0cd | 865.6 ± 93.8a | 540.0 ± 68.2bcd | 90.0 ± 11.4bcd | |
Apagbaala | 1233.4 ± 164.8a | 723.1 ± 228.1a | 887.6 ± 134.4a | 147.9 ± 22.4a | |
IT82D-889 | 896.1 ± 50.1abc | 687.6 ± 104.3a | 738.7 ± 29.5ab | 123.1 ± 4.9ab | |
ITH98-46 | 392.8 ± 9.1d | 862.3 ± 59.5a | 292.9 ± 6.7d | 48.8 ± 1.1d | |
Bechuana white | 837.3 ± 171.1bc | 652.7 ± 76.7a | 599.9 ± 124.2bc | 100.0 ± 20.7bc | |
Glenda | 1244.3 ± 111.9a | 888.1 ± 102.6a | 879.3 ± 79.3a | 146.5 ± 13.2a | |
Mamlaka | 579.5 ± 94.9cd | 686.7 ± 47.6a | 401.0 ± 63.0cd | 66.8 ± 10.5cd | |
Fahari | 727.5 ± 54.1bcd | 252.5 ± 62.4b | 507.3 ± 28.7bcd | 84.5 ± 4.8bcd | |
F-statistics | 7*** | 3** | 7.6*** | 8*** |