Table 4.

Phenotypic correlation of pea grain yield in mixed stand with cereals (MS) or in pure stand (PS) and ratio between MS and PS for pea grain yield with pea morphophysiological traits in PS, for 144 pea inbred lines grown in two cropping years.

	Pea grain yield
	2018–19			2019–20			MS/PS pea yield ratio
Trait	MSa	PSa	u testb	MSa	PSa	u testb	2018–19	2019–20
Onset of flowering	0.46**	−0.13 NS	**	0.50 **	−0.03 NS	**	0.49 **	0.53 **
Plant height at onset of flowering	0.55**	0.12 NS	**	0.59**	0.31**	**	0.41**	0.50**
Individual seed weight	−0.08 NS	0.30**	**	−0.09 NS	0.18*	*	−0.29**	−0.16 NS
Maturity date	0.20*	0.37**	NS	−0.07 NS	−0.16 NS	NS	−0.14 NS	0.00 NS
Plant height at maturity	0.36**	0.41**	NS	0.44**	0.21*	*	−0.02 NS	0.38**
Winter plant survival	0.13 NS	0.27**	NS	–	–		−0.09 NS	–
Susceptibility to ascochyta blight	−0.22**	−0.57**	**	–	–		0.25**	–

^aNS, *, **, correlation not different from zero and different from zero at P < 0.05 and P < 0.01, respectively.

^bNS, *, **, correlation coefficients between growing conditions in the same cropping year not different and different at P < 0.05 and P < 0.01, respectively, according to u test.