Table 3.
Grain yield and their related traits associated with the combination lines of NAL1 and GNP1
| GB | Regions | GNP1 | NAL1 | N | EPN | TGW | GNP | GYP |
|---|---|---|---|---|---|---|---|---|
| Lemont | Beijing | S | S | 17 | 9.0 ± 1.8a | 21.1 ± 2b | 196.1 ± 42.3a | 29.3 ± 9.4a |
| S | W | 14 | 9.6 ± 2.1a | 22.3 ± 3.1ab | 168.5 ± 37.9b | 29.3 ± 10.5a | ||
| W | S | 151 | 8.8 ± 1.5a | 22.2 ± 2ab | 141.2 ± 21.2c | 23.6 ± 5.9b | ||
| W | W | 12 | 9.9 ± 1.2a | 24.2 ± 2.1a | 114.6 ± 25.8d | 18.5 ± 2.6c | ||
| Sanya | S | S | 17 | 11.9 ± 2b | 22.1 ± 2.1b | 220.7 ± 45.7a | 47.6 ± 13a | |
| S | W | 14 | 14.1 ± 2.7a | 22.7 ± 2.8b | 190.7 ± 38.4b | 47.3 ± 12.4a | ||
| W | S | 151 | 12.6 ± 2.9ab | 22.1 ± 1.6b | 174.8 ± 28.4b | 40.1 ± 12.5b | ||
| W | W | 12 | 14.2 ± 2.8a | 24.0 ± 2.0a | 143.5 ± 34c | 41.1 ± 12.7b | ||
| Teqing | Beijing | S | S | 16 | 8.7 ± 1.3a | 22.4 ± 2.2a | 219.3 ± 35.7a | 28.8 ± 5.8ab |
| S | W | 217 | 9.4 ± 1.4a | 22.0 ± 2.0a | 195.8 ± 32.2b | 30.2 ± 6.8a | ||
| W | S | – | – | – | – | – | ||
| W | W | 19 | 8.9 ± 1.6a | 22.8 ± 1.8a | 164.6 ± 47.3c | 25.6 ± 7.5b | ||
| Sanya | S | S | 16 | 11.6 ± 2.2a | 23.8 ± 2.6a | 241.8 ± 30.0a | 47.0 ± 10.9a | |
| S | W | 217 | 12.2 ± 2.7a | 23.3 ± 2.0a | 219.0 ± 33.4b | 47.4 ± 14.0a | ||
| W | S | – | – | – | – | – | ||
| W | W | 19 | 12.5 ± 2.7a | 23.8 ± 2.2a | 188.5 ± 33.2c | 45.5 ± 11.5a |
GB genetic background, W weak functional lines (Teqing allele of NAL1, Lemont allele of GNP1), S strong functional lines (Lemont allele of NAL1, Teqing allele of GNP1) (Xu et al. 2015; Wu et al. 2016), N the number of lines, EPN effective panicle number per plant, TGW thousand grain weight (g), GNP grain number per panicle, GYP grain yield per plant (g), theoretical yield in Sanya, actual yield in Beijing; All data are present as mean ± SD; Letters are ranked by Duncan’s test at P < 0.05