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

Table 5

Estimates of genetic parameters^‡‡‡ for traits^‡ under optimum condition.

Genetic parameters^‡‡‡	Traits^‡
	GYLD	PWt	DFF	DFFA	DFPM	NBM	DTM	PHF	PHM	PODL	NPPLT	SPOD	HSWt
	0.01	0.03	1.49	1.55	3.16	0.15	8.03	10.65	20.85	0.22	0.84	0.08	17.89
	0.15	0.21	2.52	3.35	2.70	0.64	5.37	19.86	16.41	0.31	51.76	0.86	0.25
	0.02	0.02	0.65	0.68	0.61	0.42	1.49	6.74	6.05	0.44	19.76	0.81	0.33
	0.35	1.08	0.30	0.00	1.71	0.34	3.31	4.28	3.28	1.59	29.47	1.20	1.22
	0.30	0.64	6.25	7.13	10.21	1.47	24.02	49.34	65.25	1.73	83.01	2.24	36.77
(%)	54.64	40.06	87.95	90.53	88.43	63.71	89.22	83.44	89.05	43.57	64.36	45.64	97.99
(%)	6.57	8.10	47.65	43.57	62.00	20.39	66.86	43.18	63.90	25.49	2.01	7.06	97.30
GA (%)	2.30	2.82	5.49	5.62	6.67	11.66	9.95	23.36	34.37	4.97	1.64	2.51	61.62
Baker’s ratio	0.12	0.20	0.54	0.48	0.70	0.32	0.75	0.52	0.72	0.58	0.03	0.15	0.99
GCV (%)	15.74	12.96	6.08	7.01	5.693	27.83	8	27.994	28.67	7.323	37.016	13.77	35.73
PCV (%)	21.3	20.48	6.483	7.367	6.054	34.87	8.47	30.647	30.38	11.09	46.14	20.39	36.09

^‡GYLD, grain yield; PWt, pod yield; DFF, 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. ^‡‡‡, variance of general combining ability; , variance of specific combining ability; , variance of reciprocal effect; variance of random error; , phenotypic variance; (%), broad-sense heritability; (%), narrow-sense heritability; GA (%), percentage genetic advance; GCV (%), percentage of genotypic coefficient of variation; PCV (%), phenotypic coefficient of variation.