Table 1. Summary of phenotype analysis and multiple comparisons of traits evaluated for the four parental lines.
| Traitsa | Lines | Mean | SD | Range | LSD 0.05 | LSD 0.01 |
|---|---|---|---|---|---|---|
| KL (mm) | Jiao51 | 7.68 | 0.56 | 6.07–9.44 | a | A |
| A188 | 8.70 | 0.61 | 7.05–9.78 | b | B | |
| D276 | 9.62 | 0.71 | 8.13–11.34 | c | C | |
| D72 | 9.87 | 0.66 | 8.26–11.08 | d | C | |
| KW (mm) | D276 | 6.93 | 0.64 | 5.25–8.96 | a | A |
| A188 | 7.48 | 0.52 | 5.97–8.74 | b | B | |
| Jiao51 | 8.18 | 0.59 | 6.65–9.58 | c | C | |
| D72 | 8.42 | 0.68 | 6.02–10.03 | d | D | |
| KT (mm) | A188 | 3.96 | 0.40 | 3.31–5.75 | a | A |
| Jiao51 | 5.00 | 0.51 | 3.71–6.26 | b | B | |
| D276 | 5.31 | 0.55 | 3.93–6.94 | c | C | |
| D72 | 5.81 | 0.75 | 6.20–7.39 | d | D | |
| ERN | A188 | 11.3 | 0.76 | 10.0–12.0 | a | A |
| D72 | 12.5 | 0.87 | 11.2–14.0 | ab | AB | |
| D276 | 13.7 | 1.50 | 11.0–15.7 | b | B | |
| Jiao51 | 16.1 | 0.62 | 15.2–17.0 | c | C | |
| KNR | D276 | 10.5 | 3.18 | 7.0–14.0 | a | A |
| D72 | 12.0 | 1.83 | 9.6–15.0 | ab | A | |
| A188 | 12.5 | 1.93 | 10.0–14.5 | b | A | |
| Jiao51 | 16.8 | 0.90 | 15.4–17.9 | c | AB | |
| HKW (g) | A188 | 9.3 | 1.01 | 7.58–10.5 | a | A |
| Jiao51 | 14.5 | 0.41 | 13.8–15.2 | b | B | |
| D276 | 18.3 | 3.00 | 13.42–22.5 | c | C | |
| D72 | 23.1 | 0.90 | 21.8–24.15 | d | D |
a: KL: kernel length; KW: kernel width; KT: kernel thickness; ERN: ear row number; KNR: kernel number per row; HKW: hundred kernel weight. LSD: Least Significant Difference; The same letters in LSD 0.05 and LSD 0.01 columns indicate that difference is not significant in the same group at P < 0.05 (LSD 0.05) or P < 0.01 (LSD 0.01) levels.