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

Table 7

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

N/S	Traits	DT	DS	PH	EH	NLPP	LL	LW	NTB	EL	ED	NKRPE
1	DT	1	0.930	0.296	0.486	0.571	0.053	0.115	0.343	0.142	−0.093	−0.060
2	DS		1	0.230	0.428	0.600	0.040	0.180	0.289	0.217	−0.029	0.006
3	PH			1	0.805	0.411	0.457	0.162	0.455	0.157	0.071	0.087
4	EH				1	0.557	0.294	0.319	0.586	0.280	−0.021	−0.017
5	NLPP					1	−0.044	0.218	0.330	0.042	0.139	0.060
6	LL						1	0.225	0.199	0.459	−0.016	0.127
7	LW							1	0.248	0.410	0.294	0.134
8	NTB								1	0.183	−0.006	−0.018
9	EL									1	−0.010	0.055
10	ED										1	0.426
11	NKRPE											1
S/N	Traits	NKPR	NEPP	TKW	GYPH		AGBYPP		HI		GYPP
1	DT	0.066	0.238	0.154	−0.066		0.080		−0.279		−0.051
2	DS	0.128	0.006	0.148	−0.054		0.083		0.229		−0.055
3	PH	0.267	0.121	0.030	0.274		0.345		−0.224		0.137
4	EH	0.269	0.163	0.203	0.276		0.408		−0.208		0.199
5	NLPP	0.134	0.125	0.050	0.105		0.295		−0.268		0.051
6	LL	0.453	−0.053	−0.126	0.332		0.404		−0.029		0.321
7	LW	0.348	0.026	0.186	0.491		0.351		0.131		0.284
8	NTB	0.159	0.258	0.178	0.215		0.415		−0.159		0.280
9	EL	0.801	−0.080	−0.046	0.354		0.235		0.248		0.314
10	ED	0.081	−0.133	0.142	0.188NS		0.028		−0.024		0.005
11	NKRPE	0.284	0.060	−0.286	0.201		−0.081		0.112		0.028
12	NKPR	1	0.075	−0.361	0.467		0.258		0.314		0.386
13	NEPP		1	−0.139	0.367		0.379		0.389		0.438
14	TKW			1	0.074		0.208		−0.086		0.163
15	GYPH				1		0.585		0.677		0.698
16	AGBYPP						1		0.149		0.761
17	HI								1		0.473
18	GYPP										1

and significant and highly significant 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.