Table 7. Correlation coefficient (r) between different growth- and physio-biochemical parameters under 20% PEG after 3 days of treatment.

	RW	SW	PW	TB	HI	R:S	PRO	CHL	RWC	EC
SW	0.48	1.00
PW	0.77**	0.41	1.00
TB	0.84**	0.78**	0.87**	1.00
HI	0.32	−0.30	0.73**	0.31	1.00
R:S	0.92**	0.12	0.72**	0.64*	0.53	1.00
PRO	0.28	0.61*	0.46	0.58*	0.12	0.07	1.00
CHL	0.55	0.75**	0.52	0.73**	0.02	0.31	0.61*	1.00
RWC	0.65*	0.23	0.82**	0.67*	0.64*	0.69**	0.30	0.14	1.00
EC	−0.65*	−0.74**	−0.76**	−0.88**	−0.25	−0.42	−0.48	−0.62*	−0.59*	1.00
OP	0.46	0.69**	0.43	0.64*	−0.02	0.21	0.57*	0.91**	−0.04	−0.53

For each parameter, average values of three AtDREB1A transgenic peanut lines along with WT were used. Where: RW-root-weight, SW-shoot-weight, PW- pod-weight, TB- total biomass, HI-harvest index, R:S-root∶shoot ratio, PRO- proline, OP-osmotic potential, RWC- relative water content, EC- electrolytic leakage, CHL-chlorophyll content. *Indicates a significant correlation: *P≤0.05, and **P≤0.01.