The Scientific World Journal

Research Article

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

Table 4

Crosses^‡‡ and SCA effects of F₁ hybrid for traits^‡ under optimum condition.


Crosses^‡‡	Trait^‡
Crosses^‡‡	GYLD	PWt	DFF	DFFA	DFPM	NBM	DTM	PHF	PHM	PODL	NPPLT	SPOD	HSWt

P1 × P2	0.70	0.73	−1.01	−1.66	−1.76	−0.09	−2.41	4.42	4.32	0.37	7.18	−0.07	−0.73
P1 × P3	−0.04	−0.24	−0.37	0.84	−0.39	0.48	1.16	4.42	4.39	−0.53	−1.99	0.00	1.00
P1 × P4	0.43	0.41	0.16	0.54	−0.19	−0.29	−0.87	−0.25	−1.88	−0.83	0.38	0.17	0.00
P1 × P5	0.58	0.45	−2.27	−1.96	−0.63	−0.05	−1.64	−0.39	−2.35	−0.39	−3.79	−1.77	0.07
P2 × P3	0.42	0.56	−0.37	−0.06	−1.29	0.61	−1.17	2.05	2.35	0.81	6.31	0.26	0.10
P2 × P4	−1.31	−1.77	−0.17	0.64	−0.26	1.01	−0.71	−5.11	−4.08	−0.33	−9.65	−1.07	−0.23
P2 × P5	1.54	0.96	−0.61	0.63	0.47	0.25	0.86	2.92	2.62	0.11	4.01	0.00	2.00
P3 × P4	0.80	0.89	−2.04	−1.36	−2.39	0.75	−3.64	−2.11	−2.18	0.27	8.35	−0.17	0.17
P3 × P5	−0.26	0.09	1.03	3.14	0.51	−0.52	0.09	−4.41	−4.48	−0.79	−5.82	−1.10	−0.60
P4 × P5	1.37	1.05	1.89	1.34	0.54	0.38	0.06	−2.25	−0.25	1.24	11.05	1.07	−1.27
S. E.	0.22	0.39	0.20	0.00	0.49	0.22	0.68	0.77	0.68	0.47	2.03	0.41	0.41
S. E.	0.53	0.93	0.49	0.00	1.17	0.52	1.63	1.85	1.62	1.13	4.86	0.98	0.99

, Significant at the 5% and 1% probability level, respectively. ^‡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. ^‡‡P1 × P2, a cross between Padi-Tuya and Songotra; P1 × P3, a cross between Padi-Tuya and SARC 1-57-2; P1 × P4, a cross between Padi-Tuya and IT86D-610; P1 × P5, a cross between Padi-Tuya and Sanzi-Nya; P2 × P3, a cross between Songotra and SARC 1-57-2; P2 × P4, a cross between Songotra and IT86D-610; P2 × P5, a cross between Songotra and Sanzi-Nya, P3 × P4, a cross between SARC 1-57-2 and IT86D-610; P3 × P5, a cross between SARC-1-57-2 and Sanzi-Nya; P4 × P5, a cross between IT86D-610 and Sanzi-Nya Songotra and SARC 1-57-2; S. E. , standard error of SCA effect; S. E. , standard error of the difference between the effects of specific combining ability for two crosses.