Table 3.

Pearson correlation coefficients (r) among root and related shoot traits under control and drought stress conditions

Treatment	Trait a	RL	RDW	RV	TIL	GH
Control	RL	1
	RDW	0.65***	1
	RV	0.68***	0.93***	1
	TIL	0.40**	0.57***	0.51***	1
	GH	−0.35**	−0.50***	−0.46***	−0.68**	1
Drought	RL	1
	RDW	0.60***	1
	RV	0.56***	0.79***	1
	TIL	0.23*	0.27*	0.28*	1
	GH	−0.27*	−0.35**	−0.41***	−0.62***	1

^aTrait: RL = Root length, RDW = Root dry weight, RV = Root volume, TIL = Tiller number per plant, GH = Growth habit.

*, **, ***indicates significant at <0.05, <0.01 and <0.001 levels of probability, respectively.