Correlation and Path Coefficient Analysis of Yield and Agronomic Characters among some Maize Genotypes and Their F1 Hybrids in a Diallel Cross

Volume 16 , Issue 1 , October 2014 , Pages 1-8

Authors

¹ Field Crops Department, Faculty of Agricultural Sciences, University of Sulaimani

Grain yield in maize (Zea mays L.) can be improved by understanding the

interrelationships among yield, yield components, vegetative growth, and growth period.

The objective of this study was to determine the relationship among some of the most

important growth and yield traits by using correlation coefficient and path coefficient

Data were obtained to from 25 F1 hybrids including reciprocals in a diallel mating

design. Kernels yield plant-1 had positive and significant correlation with No. of kernels

row-1, kernels weight ear-1 at both locations, and with cob weight at Kanipanka location,

while has no significant correlation with the other characters. Path analysis indicated

that kernel weight ear-1, No. of ears plant-1, and No. of kernels row-1 showed high direct

effect on kernel yield plant-1 at Kanipanka location, while at Qlyasan location No. of

kernel row-1, 300-kernel weight, No. of ears plant-1, and kernel weight ear-1 showed the

high direct effect on kernel yield plant-1, these traits can be considered as principal yield

component and the breeder can be use these as selection criteria for kernel yield

improvement.

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