Diallel Analysis and Heritability of Grain Yield, Yield Components, and Maturity Traits in Cowpea (Vigna unguiculata (L.) Walp.)

Table 2

Mean squares for 13 traits from a 5-parent diallel analysis under optimum condition in Ghana, 2016.

Trait^‡	Source of variation (mean squares)^†
	REP (Df = 2)	Entry (Df = 24)	GCA (Df = 4)	SCA (Df = 10)	REC (Df = 10)	MAT (Df = 4)	NMAT (Df = 6)	Error (Df = 48)
GYLD	0.60	2.65	2.75	3.68	1.57	1.10	1.89	0.35
PWt	1.29	3.61	5.74	4.34	2.03	3.90	0.78	1.08
DFF	0.52	17.30	44.97	15.41	8.13	13.97	4.24	0.30
DFFA	0	20.32	46.59	20.08	10.05	19.05	4.05	0
DFPM	0.17	27.13	96.64	17.89	8.57	13.37	5.37	1.71
NBM	0.16	4.50	4.84	4.10	4.70	7.45	2.87	0.34
DTM	0.57	59.63	244.24	35.55	9.87	6.33	12.22	3.31
PHF	2.92	123.51	323.84	123.46	43.42	41.42	44.75	4.28
PHM	9.65	165.73	628.74	101.75	44.50	51.88	39.58	3.28
PODL	0.76	4.84	8.19	3.47	4.87	5.78	4.26	1.59
NPPLT	2.97	219.48	54.54	340.02	164.92	190.25	148.08	29.47
SPOD	3.21	5.11	3.57	6.37	4.47	2.03	6.09	1.20
HSWt	2.08	35.47	179.40	5.66	7.72	9.77	6.35	1.22

, , Significantly different from zero at the 5%, 1%, and 0.1% probability levels, respectively. ^†REP, replication; entry, number of entry; GCA, general combining ability; SCA, specific combining ability; REC, reciprocal; MAT, maternal; NMAT, nonmaternal; Error, experimental error. ^‡GYLD, grain yield; PWt, pod yield; days to 50% flowering; DFFA, days to first flower appearance; DFPM, days to first pod maturity; NBM, number of branches at maturity; DTM, days to maturity; PHF, plant height at flowering; PHM, plant height at maturity; PODL, pod length at maturity; NPPLT, number of pods per plant; SPOD, number of seeds per pod; HSWt, hundred-seed weight.