Inheritance of Early Maturity in Some Cowpea (Vigna unguiculata (L.) Walp.) Genotypes under Rain Fed Conditions in Northern Ghana

Table 2

Estimates of heritability based on variances of DFFI, DFF, DFPM, and DNPM.

Parameter	Variance components					Heritability estimates
						H^2b	h^2n
DFFI	44.88	40.24	38.68	1.56	4.64	89.7	82.2
DFF	4.89	4.84	4.84	−1.95 (0)	1.96	99	99
DFPM	69.63	51.90	51.24	0.66	17.73	74.5	73.6
DNPM	7.65	7.01	7.03	−2.27 (0)	2.92	91.6	91.6

DFFI = days to first flower initiation, DFF = days to 50% flowering, DFPM = days to first pod maturity, DNPM = days to 90% pod maturity, df = degrees of freedom, = phenotypic variance, = genotypic variance, = additive variance, = dominance variance, = environmental variance, H²b = broad sense heritability, and h²n = narrow sense heritability.