GENETIC VARIABILITY AND CORRELATION STUDIES FOR MORPHOLOGICAL TRAITS IN MAIZE (ZEA MAYS L.) GENOTYPES

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N. Sarma Barua
V. P. Chaudhary
G. N. Hazarika

Abstract

Genetic variability and correlation studies were undertaken in maize (Zea mays L.) genotypes for grain yield and yield contributing traits. High heritability exertion along with high genetic advance were recorded for plant height (95.00, 44.07), ear height (95.00, 30.42) and grain yield (90.00, 4484.69), indicating that these traits were controlled by additive genes and suggesting hybridization to be effective. Grain yield showed highly significant positive genotypic correlation with plant height (0.767) and ear height (0.823). Path analysis revealed that days to 50% silk (1.918) had shown the highest positive direct effect on grain yield followed by days to 50% pollen shed (1.779), days to 75% dry husk (0.840), plant height (0.753) and number of kernels per row (0.600) indicating these characters, can be strategically used to improve grain yield of maize. Thus, selection can be exercised on these traits in improving maize population for high grain yield.

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How to Cite
Barua, N., Chaudhary, V., & Hazarika, G. (2017). GENETIC VARIABILITY AND CORRELATION STUDIES FOR MORPHOLOGICAL TRAITS IN MAIZE (ZEA MAYS L.) GENOTYPES. Indian Research Journal of Genetics and Biotechnology, 9(01), 38-48. Retrieved from https://irjgbt.in/index.php/IRJGBT/article/view/326
Section
Review Article