Table 2.
Performance of cowpea lines for grain yield and disease reaction at Mandya and Bengaluru in Karnataka during rainy season of 2017
| Genotypes | Grain yield (kg/ha) | Yield advantage (%) | Disease reaction at Mandya | Disease reaction at Bengaluru | % RPG | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CpMV | BLB | CpMV | BLB | |||||||||||
| Mandya | Bengaluru | Mean | Over check KBC-2 | Over recurrent parent C-152 | PDI (%) | Disease response | PDI (%) | Disease response | PDI (%) | Disease response | PDI (%) | Disease response | ||
| MC-17-1 | 953 | 1467 | 1210 | 14 | 13 | 0 | I | 2.2 | R | 0 | I | 2.4 | R | 97.90 |
| MC-17-2 (KBC-12) | 995 | 1514 | 1255 | 18 | 17 | 0 | I | 0 | R | 0 | I | 0 | R | 97.90 |
| MC-17-3 | 720 | 953 | 837 | −21 | −22 | 16 | MS | 24 | TR | 20 | MS | 20 | TR | 91.67 |
| MC-17-4 | 967 | 1494 | 1231 | 15 | 15 | 0 | I | 0.8 | R | 0 | I | 0.6 | R | 95.83 |
| MC-17-6 | 908 | 1020 | 964 | −10 | −10 | 0 | I | 3.6 | R | 12 | MR | 28 | TR | 95.83 |
| MC-17-8 | 938 | 1419 | 1178 | 11 | 10 | 0 | I | 1.4 | R | 0 | I | 1.6 | R | 97.90 |
| Checks | ||||||||||||||
| KBC-2 (Ch) | 716 | 1415 | 1066 | - | - | 68 | S | 32 | S | 56 | S | 38 | S | |
| C-152 (RP) | 870 | 1279 | 1075 | - | - | - | - | - | - | - | - | - | - | |
| CV (%) | 9.02 | 8.35 | - | - | - | - | - | - | - | - | - | - | - | |
| LSD (0.05) | 193.72 | 267.98 | - | - | - | - | - | - | - | - | - | - | - | |
Ch check variety, RP recurrent parent, CV coefficient of variation, LSD least significant difference, CpMV cowpea mosaic virus, BLB bacterial leaf blight, RPG recurrent parent genome, PDI per cent disease index, I immune, S susceptible, MS moderate susceptible, R resistant, MR moderate resistant, TR tolerant reaction