Genetic Variability for the Yield and Yield-Related Traits in Some Maize (Zea mays L.) Inbred Lines in the Central Highland of Ethiopia

Table 8

Analysis of the genotypic correlation for maize grain yield and other agronomic traits.

S/N	Traits	DT	DS	PH	EH	NLPP	LL	LW	NTB	EL	ED	NKRPE
1	DT	1	0.944	0.431	0.712	0.643	0.141	0.311	0.475	0.271	−0.110	−0.011
2	DS		1	0.339	0.616	0.667	0.122	0.360	0.398	0.350	−0.024	0.090
3	PH			1	0.785	0.430	0.389	−0.062	0.465	0.070	−0.018	−0.039
4	EH				1	0.616	0.178	0.132	0.591	0.262	−0.140	−0.164
5	NLPP					1	−0.090	0.212	0.355	0.041	0.135	0.026
6	LL						1	0.055	0.159	0.522	−0.086	0.054
7	LW							1	0.198	0.434	0.381	0.068
8	NTB								1	0.174	−0.009	−0.070
9	EL									1	−0.222	−0.107
10	ED										1	0.491
11	NKRPE											1
N/S	Traits	NKPR	NEPP	TKW	GYPH		AGBYPP		HI		GYPP
1	DT	0.173	0.107	0.222	0.073		0.350		−0.312		0.074
2	DS	0.224	0.075	0.209	0.070		0.339		−0.267		0.071
3	PH	0.196	0.123	−0.029	0.057		0.359		−0.437		−0.018
4	E H	0.227	0.082	0.164	0.046		0.371		−0.426		−0.001
5	NLPP	0.140	0.144	0.038	0.084		0.426		−0.381		0.040
6	LL	0.498	−0.197	−0.188	0.205		0.476		−0.113		0.340
7	LW	0.312	−0.118	0.178	0.353		0.196		0.044		0.162
8	NTB	0.166	0.234	0.186	0.171		0.456		−0.244		0.251
9	EL	0.806	−0.067	−0.080	0.349		0.360		0.168		0.391
10	ED	−0.151	−0.144	0.165	0.149		0.015		−0.129		−0.008
11	NKPE	0.199	0.092	−0.438	0.002		−0.241		−0.024		−0.105
12	NKPR	1	0.197	−0.494	0.471		0.290		0.284		0.462
13	NEPP		1	−0.307	0.497		0.225		0.520		0.435
14	TKW			1	−0.011		0.266		−0.181		0.077
15	GYPH				1		0.581		0.683		0.787
16	AGBPP						1		0.066		0.748
17	HI								1		0.582

and = nonsignificant and significantly different at 5% and 1%, respectively. Note. DT = days to 50% tasseling, DS = days to 50% silking, PH = plant height (cm), EH = ear height (cm), NLPP = number of leaves per plant, LL = leaf length (cm), LW = leaf width, NTB = number of tassel branches, El = ear length (cm), ED = ear diameter (cm), NKRPE = number of kernel rows per ear, NKPR = number of kernel per row, NEPP = number of ear per plant, TKW = thousand kernel weight (g), GYPP = grain yield per plant (g), GYPH = grain yield per hectare (kg), AGBYPP = aboveground biomass yield per plant (g), HI = harvest index, and S/N = serial number.