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

Table 10

Path coefficient analysis showing direct (diagonal bold) and indirect (off diagonal) effects of different traits on the grain yield per plant in maize inbred lines at the genotypic level.

S/N	Traits	NKPR	NEPP	GYPH	AGBYPP	HI
1	NKPR	0.8250	0.0257	−0.0422	0.2606	0.0820	0.4620
2	NEPP	0.1658	0.1280	−0.0397	0.2453	0.0772	0.4350
3	GYPH	0.3000	0.0438	−0.1160	0.4439	0.1397	0.7870
4	AGBYPP	0.2851	0.0416	−0.0683	0.7540	0.1328	0.7480
5	HI	0.2218	0.0324	−0.0531	0.3282	0.3050	0.5820

and Significant and highly significant at 5% and 1%, respectively. Note. NKPR = number of kernels per row, NEPP = number of ears 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. Bold values represents the direct effects of different traits on the grain yields.