Table 2.

Spearman’s correlations between values of quantitative traits of different S. grandis populations and environmental variables in their original habitats.

Traits	Field					Common garden
	Longitude	Latitude	Altitude	PC scores for 19 bioclimatic variables		Longitude	Latitude	Altitude	PC scores for 19 bioclimatic variables
				PC-1	PC-2				PC-1	PC-2
Height of reproductive shoot	0.964**	0.679	−0.714	0.821*	0.357	−0.025	−0.412	−0.064	0.094	0.536
Height of vegetative shoot	0.964**	0.714	−0.893**	0.679	0.179	−0.146	−0.701	0.148	0.006	0.858*
Length of the maximum leaf	0.964**	0.714	−0.893**	0.679	0.179	−0.202	−0.785*	0.279	0.049	0.945**
Length of callus	−0.491	−0.6	0.709	−0.218	0.436	0.105	0.356	−0.47	−0.253	−0.49
Length of seed	−0.505	−0.27	0.306	−0.739	−0.018	−0.493	−0.797*	0.276	−0.442	0.782*
Length of the first glume	−0.73	−0.674	0.674	−0.468	0.524	−0.345	−0.856*	0.489	−0.019	0.956**
Length of the second glume	−0.09	−0.252	−0.288	−0.414	0.342	−0.452	−0.894**	0.484	−0.19	0.944**
Length of the first segment of awn	−0.162	−0.126	0.234	−0.252	0.252	−0.66	−0.936**	0.563	−0.451	0.847*
Length of the second segment of awn	−0.214	0.143	−0.321	−0.714	−0.643	−0.117	−0.704	0.122	0.057	0.878**

*,** indicate significant correlations at the 0.05, 0.01 level, respectively.