Table 6. Correlation coefficients between GD, heterosis levels, and combining abilities of each trait.

Trait	GD			SCA		MPH		BPH
	MPH	BPH	SCA	MPH	BPH	GCAf	GCAm	GCAf	GCAm
SY	0.05	0.06	0.19*	0.43**	0.49**	0.36**	0.19*	0.35**	0.27**
SS	0.13	0.08	0.43**	0.34**	0.31**	0.16	−0.09	0.15	−0.07
SP	−0.11	−0.13	0.04	0.55**	0.53**	0.37**	0.18*	0.34**	0.27**
TSW	−0.12	−0.32**	−0.35**	0.54**	0.70**	0.34**	0.05	0.59**	0.11
OC	−0.01	0.08	−0.08	0.53**	0.54**	0.05	−0.04	−0.17*	−0.12

GD: genetic distance; GCA_f: GCA of female parents; GCA_m: GCA of male parents.

* Significant at p = 0.05; ** significant at p = 0.01.