Table 1.

Heading date and grain yield associated with japonica rice cultivars from Northeast China combinations of Hd1, Ghd7, and DTH7.

Combinations			Heading date(d)			PS index	Grain yield(g)
Hd1	Ghd7	DTH7	Lingshui	Hangzhou	Shenyang		Shenyang
N	N	N	68.10 ± 2.28	56.67 ± 4.65	92.71 ± 5.7	0.264 ± 0.04	18.25 ± 8.19
F	N	N	71.83 ± 12.84	57.67 ± 14.47	93.33 ± 9.31	0.235 ± 0.06	19.97 ± 8.82
F	W	N	70.33 ± 3.21	61.67 ± 1.15	94.67 ± 2.31	0.257 ± 0.03	19.51 ± 8.44
N	W	N	72.06 ± 8.85	59.30 ± 7.61	95.24 ± 7.45	0.244 ± 0.05	19.05 ± 7.14
N	N	F	69.67 ± 3.08	59.33 ± 3.93	99.5 ± 5.79	0.299 ± 0.03	29.29 ± 7.14
N	W	F	77.82 ± 7.63	69.07 ± 4.87	111.42 ± 7.12	0.300 ± 0.07	33.46 ± 9.37
F	W	F	77.00 ± 12.79	75.33 ± 11.99	114.44 ± 10.49	0.319 ± 0.15	34.27 ± 5.94

N, non-functional haplotypes; F, functional haplotypes; W, weak functional haplotypes.