Combining abilities and genetic parameters for grain yield and some agronomic traits in maize (Zea mays L.)

Beni-Suef University Journal of Basic and Applied Sciences

Table 1 Analysis of variances for nine traits combined across two locations

sov	df	DTS	PHT	EHT	EPOS%	E100P	EL	ED	KR⁻¹	GY ard fed⁻¹
Locations (Loc.)	1	589.07**	37,550.02**	24,804.39**	381.35*	2252.16**	199.84**	5.37**	17.60	646.50**
Reps/Loc	6	2.26	1239.96	747.66	34.84	147.10	0.61	0.19	11.88	18.71
Crosses ( C)	29	16.45**	1516.70**	1516.01**	77.10**	265.20**	13.93**	0.13**	64.87**	42.33**
Lines (L)	14	25.48**	1726.74**	1570.48**	91.55**	207.89**	11.38**	0.20**	56.10**	29.86*
Testers (T)	1	70.42**	15,584.82**	18,972.82**	585.03**	3146.50**	177.16**	0.06	656.70**	454.37**
Lines × Testers	14	3.56*	301.81*	214.64	26.37	116.71*	4.83**	0.07**	31.37**	55.37**
C × Loc	58	1.69	145.18	72.58	16.10	55.55	1.19	0.03	3.73	9.39
Lines × Loc	14	5.30**	408.95**	143.55	34.99	92.83	1.37	0.05*	5.77	27.12*
Testers × Loc	1	2.40	5.40	17.13	16.28	45.41	31.83**	0.32**	36.04*	39.04
L × T × Loc	14	1.53	192.12	155.93	30.54	134.08*	1.28	0.05*	7.09	9.01
Pooled error	174	2.048	174.679	153.088	26.961	65.468	1.076	0.032	7.026	15.875

*, ** significant at 0.05 and 0.01 levels of probability, respectively
DTS days to 50% silking (days), PHT plant height, cm, EHT ear height, cm, Epos% ear position %, E100P ears/100plant, El Ear Length, cm, ED Ear Diameter, cm, KR⁻¹ no of Kernels Row, GY Grain Yield ard fed⁻¹