Vol. 5 (5) : September-October 2014 issue
Green Farming Vol. 5 (5) : 738-741 ; September-October, 2014
Correlation and path analysis in certain inbred genotypes of maize (Zea mays L.) under Varanasi conditions
V. NATARAJ1*, J.P. SHAHI2, K. RAGHUNANADAN3 and V.K. AGRAWAL4
Deptt. of Genetics & Plant Breeding, Institute of Agri. Sci., Banaras Hindu University, Varanasi - 221 005 (U.P.)
Designation : 1,4Ph.D. Scholar*(natraj0755@gmail.com), 2Professor, 3P.G. Student
Subject : Crop Genetics and Plant Breeding
Paper No. : P-1731
Total Pages : 4
Received : 27 March 2014
Revised accepted : 19 September 2014
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Citation :
V. NATARAJ, J.P. SHAHI, K. RAGHUNANADAN and V.K. AGRAWAL. 2014. Correlation and path analysis in certain inbred genotypes of maize (Zea mays L.) under Varanasi conditions. Green Farming Vol. 5 (5) : 738-741 ; September-October, 2014
ABSTRACT
The phenotypic as well as genotypic correlation and path analysis of agronomic yield and yield contributing characters were analysed in 39 inbreds of maize (Zea mays L.). Grain yield has positive and significant correlation with ear diameter, number of kernels per row, number of kernel rows per ear, ear height, ear weight with husk, ear weight without husk, plant height, 100 grain weight and ear length both at genotypic and phenotypic levels. Path analysis revealed that that ear weight with husk, number of kernel rows per ear, number of kernels per row and 100 grain weight showed highest direct effect on grain yield per plant. The direct effects of plant height, ear height and ear diameter were also considerable. Where as the remaining characters exhibited negative direct effect on grain yield per plant.
Key words :
Correlation, Inbreds genotypes, Path analysis, Zea mays, Genotypic & phenotypic correlation.
