Correlation and path analysis in maize (zea mays L.)
B.V.V. Vara Prasad and D.Shivani
Maize, correlation, path analysis, yield, effect
1-7
1 (2) 2017
November,2017
A field experiment involving 18 genotypes of maize was carried out at Agricultural Research Station, Madhira during kharif 2015 to study the association of yield contributing characters among themselves along with direct and indirect effects on seed yield per plant. The results of the study revealed that days to 50% tasseling and days to 50% silking showed negative significant association with ear length, ear girth, number of kernel rows, number of kernels per row, test weight and seed yield per plant both at genotypic and phenotypic levels. Plant height showed positive significant association with ear height, ear length, ear girth, number of kernel rows, number of kernels per row, test weight and seed yield per plant. Days to 50% tasselling exhibited negative direct effect coupled with negative significant association while days to 50% silking exhibited positive direct effect on seed yield per plant. Ear height and ear length showed positive direct effects and positive indirect effect through ear girth, number of kernel rows, number of kernels per row and test weight resulting in significant positive association with seed yield per plant. For improvement of seed yield, attention should be given for traits such as ear length, ear girth, number of kernel rows and number of kernels per row which showed high positive correlation coefficients with a considerable direct and indirect effect on seed yield.