Table 3. Phenotypic correlations among four treatments for four traits related seed vigor in two recombinant inbred line populations.

Trait	Treatment	0 d	2 d	4 d	6 d	Treatment	0 d	2 d	4 d	6 d
GE	0 d		0.73**	0.58**	0.45**	SDW		0.58**	0.30**	0.25**
	2 d	0.57**		0.58**	0.48**		0.31**		0.56**	0.43**
	4 d	0.55**	0.61**		0.69**		0.42**	0.39**		0.71**
	6 d	0.41**	0.41**	0.50**			0.25**	0.35**	0.47**
GP	0 d		0.86**	0.84**	0.68**	RDW		0.86**	0.79**	0.65**
	2 d	0.70**		0.92**	0.76**		0.37**		0.91**	0.75**
	4 d	0.55**	0.66**		0.82**		0.39**	0.43**		0.82**
	6 d	0.46**	0.51**	0.64**			0.29**	0.35**	0.42**

Correlation coefficients above the diagonal line in each quadrant of the table are for the Yu537 × Shen137 recombinant inbred line and correlation coefficients below the diagonal line are for the Yu82 × Shen137 recombinant inbred line. 0 d, control; 2 d, 2-day aging treatment; 4 d, 4-day aging treatment; 6 d, 6-day aging treatment; GE, germination energy; GP, germination percentage; RDW, root dry weight; SDW, seedling dry weight.

*Significant at P = 0.05, **Significant at P = 0.01.