Table 1. Performance of kernel-related traits in the immortalized F2 population.
Year | Location | Trait a | F1 | Parents | IF2 | |||
Huang C | Xu 178 | Mean ± SE | Range | CV(%)b | ||||
2009 | Zhengzhou | KL | 1.03 | 0.72 | 0.63 | 0.88±0.005 | 0.62–1.06 | 7.74 |
KWI | 0.66 | 0.80 | 0.69 | 0.65±0.003 | 0.51–0.79 | 7.55 | ||
KT | 0.46 | 0.64 | 0.56 | 0.44±0.002 | 0.38–0.59 | 5.60 | ||
KV | 0.24 | 0.26 | 0.20 | 0.21±0.002 | 0.15–0.28 | 10.74 | ||
KW | 0.27 | 0.26 | 0.26 | 0.24±0.002 | 0.18–0.36 | 12.15 | ||
Anyang | KL | 0.98 | 0.89 | 0.75 | 0.88±0.005 | 0.65–1.07 | 7.61 | |
KWI | 0.68 | 0.75 | 0.68 | 0.65±0.003 | 0.52–0.79 | 7.29 | ||
KT | 0.48 | 0.63 | 0.56 | 0.44±0.002 | 0.39–0.51 | 5.23 | ||
KV | 0.25 | 0.27 | 0.20 | 0.20±0.002 | 0.14–0.27 | 10.91 | ||
KW | 0.29 | 0.27 | 0.23 | 0.24±0.002 | 0.17–0.32 | 12.04 | ||
2010 | Zhengzhou | KL | 0.91 | 0.69 | 0.53 | 0.86±0.005 | 0.60–1.03 | 8.51 |
KWI | 0.71 | 0.74 | 0.76 | 0.64±0.003 | 0.51–0.77 | 7.52 | ||
KT | 0.44 | 0.64 | 0.52 | 0.44±0.002 | 0.38–0.50 | 5.66 | ||
KV | 0.24 | 0.26 | 0.22 | 0.20±0.002 | 0.14–0.29 | 11.73 | ||
KW | 0.28 | 0.25 | 0.25 | 0.24±0.002 | 0.17–0.32 | 11.39 | ||
Anyang | KL | 0.98 | 0.69 | 0.64 | 0.88±0.005 | 0.64–1.09 | 7.59 | |
KWI | 0.69 | 0.74 | 0.7 | 0.64±0.003 | 0.52–0.76 | 7.53 | ||
KT | 0.42 | 0.64 | 0.55 | 0.44±0.002 | 0.39–0.51 | 5.53 | ||
KV | 0.25 | 0.26 | 0.21 | 0.20±0.002 | 0.15–0.29 | 10.75 | ||
KW | 0.29 | 0.25 | 0.25 | 0.24±0.002 | 0.16–0.34 | 12.19 | ||
IF2 | KL | KWI | KT | KV | KW | |||
h2b(%)c | 86.5 | 90.2 | 89.4 | 70.5 | 87.0 | |||
p valued | 1.08E-13 | 2.68E-04 | 2.01E-7 | 0.021 | 0.001 |
Notes: a KL, kernel length; KWI, kernel width; KT, kernel thickness; KV, kernel volume; KW, kernel weight;
CV, coefficient of variation;
h2b, broad-sense heritability;
p value, statistical significance of kernel-related traits in the four environments.