Character association and path analysis in sixty genotypes of brinjal was studied for 17 important characters. The character association studies revealed that the total yield per plant had significant and positive association with plant height (0.385), plant spread (0.660), number of primary branches (0.545), stem girth (0.539) at 90 days after transplanting (DAT), early yield per plant, number of fruits per plant and fruit diameter. While it was negatively and significantly associated with days to first flowering (-0.302 and -0.230), days to 50 per cent flowering (-0.272 and 0.229) and days to first fruit maturity (-0.164 and -0.168) at both genotypic and phenotypic level. Narrow differences between the genotypic and phenotypic correlation coefficients were observed for various traits in the present findings. This indicates the lesser influence of the environment in the expression of these traits and presence of strong inherent association among the traits. Path analysis studies revealed that significant positive association at genotypic level among the traits viz., plant height (0.235), leaf area (at 90 DAT) (0.228), days to first fruit maturity (0.162), number of fruits per cluster (0.280) and early yield per plant (1.903) had exhibited true association with direct effect on yield per plant. The direct selection for these traits would be rewarding for improvement in the total yield per plant.
Brinjal, Character association, Genotypes, Path analysis
Anonymous (2012). Improved Cultivation Practices of Horticulture Crops (Kannada). University of Agricultural Sciences, Dharawad, pp. 173-183.
Arunkumar, B., Kumar, S. V. S. and Prakash, C. G. (2013). Genetic variability and divergence studies in brinjal (Solanum melongena L.). Bioinfolet, 10(2B):739-744.
Dahatonde, K., Dod, V. N., Nagare, P. K. and Wag A. P. (2010). Correlation and path analysis studies in purple fruited brinjal (Solanum melongena L.). Asian J. Hort., 5 (2):428-430
Dewey, D. R. and Lu, K. H. (1957). A correlation and path coefficient analysis of components of wheat grass seed production. Agron. J., 51:515-518
Grafius, J. E. (1959). Correlation and path analysis in barley. Agron. J., 51:551-554
Hung, H.C., Joshipura, K.J., Jiang, R., Hu, F.B., Hunter, D. and Smith-Warner, S.A. (2004). Fruit and vegetable intake and risk of major chronic disease. J. Nat. Cancer Inst., 96:1577-1584
Kalloo, G. (1994). Vegetable Breeding, Panima Educational Book Agency, New Delhi.
Kalpana, D., Dod, V. N., Nagre, P.K. and Wag, A.P. (2010). Correlation and path analysis studies in purple fruited brinjal. The Asian J. Hort. 5 (2):428-430
Karak, C., Ray, U., Akhtar, S., Naik, A. and Hazra, P. (2012). Genetic variation and character association in fruit yield components and quality characters in brinjal [Solanum melongena L.]. J. Crop and Weed,
Muniappan, S., Saravanan, K. and Ramya, B. (2010). Studies on genetic divergence and variability for certain
economic characters in eggplant (Solanum melongena L.). Electronic J. Plant Breed., 1 (4):462-465
Nayak, B. R. and Nagre, P. K. (2013). Genetic variability and correlation studies in brinjal (Solanum melongena L.). Int. j. appl. and pharmaceutical tech., 4(4):212-215
Patel, K., Patel, N.B., Patel, A.I., Rathod, H. and Patel, D. (2015). Study of variability, correlation and path analysis in brinjal (Solanum melongena L.). The bioscan, 10(4):2037-2042
Shende, R.A., Desai, S.S. and Dalvi1, V.V. (2014). Character association and path analysis in brinjal (Solanum melongena L.). Int. J. Agri. Sci., 10 (2):631-633
Shipley, B. (2000). Cause and Correlation in Biology: A User's Guide to Path Analysis, Structural Equations and Causal Inference Cambridge University Press.
Singh, A.P., Luthria, D., Wilson, T., Vorsa, N., Singh, V., Banuelos, G.S. and Pasakdee, S., (2009). Polyphenols content and antioxidant capacity of eggplant pulp. Food Chem., 114:955-961
Thangamani, C. and Jansirani, P. (2012). Correlation and path analysis studies on yield attributing characters in brinjal (Solanum melongena L.). Electronic J. Pl. Breed., 3(3):939-944
Wright, S. (1921). Correlation and causation. J. Agric. Res., 20:557-587
This work is licensed under Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) © Author (s)