Study of Correlation and Path Analysis for Green Pod Yield and Its Contributing Traits in Vegetable Pea (Pisum sativum L.)
Keywords:
Pea, correlation, path analysisAbstract
Correlation at genotypic and phenotypic levels along with path coefficient analysis were studied for various yield and its component characters in twenty genotypes of pea (Pisum sativum L.) during rabi 2009-10. Analysis of variance revealed significant differences for all the characters, indicating the presence of good variability in the studied genotypes. Correlation studies showed that green pod yield per plant was positively and significantly associated with pod length, pod weight, and number of grains per pod. Path coefficient analysis revealed that traits such as the number of pods per plant, pod weight, number of grains per pod, number of pickings, and protein content were the most important for selecting high-yielding genotypes, as they exerted a high positive direct effect and had a positive correlation with green pod yield per plant. These findings suggest that these traits should be considered major yield-contributing traits in pea breeding programs.Downloads
References
Aykroyd, W.R. (1963). ICMR Special Republic Series No. 42.
Chaudhary, D.K., & Sharma, R.R. (2003). Genetic variability, correlation, and path analysis for green pod yield and its components in garden pea. Indian Journal of Horticulture, 60(3), 251–256.
Choudhary, D.K., Sharma, R.R., & Sureja, A.K. (2004). Correlation and path analysis studies across the generations in garden pea. Indian Journal of Horticulture, 61(2), 163–167.
Ouleria, Sonali, Chongtham, Nirmala, & Das, Sciroj. (2009). Correlation and path analysis in pea. Crop Research (Hisar), 38(1), 179–183.
Johnson, H.W., Robinson, H.F., & Comstock, R.E. (1955). Estimates of genetic and environmental variability in soybeans. Agronomy Journal, 47, 314–318.
Nawab, N.N., Subhani, G.M., Mahmood, K., Shakil, Q., & Saeed, A. (2008). Genetic variability, correlation, and path analysis studies in garden pea (Pisum sativum L.). Journal of Agricultural Research (Pakistan), 46(4), 333–340.
Panse, V.G., & Sukhatme, P.V. (1995). Statistical Methods for Agricultural Workers. ICAR, New Delhi.
Sardana, S., Mahajan, R.K., Gautam, N.K., & Ram, B. (2007). Genetic variability in pea (Pisum sativum L.) germplasm for utilization. SABRAO Journal of Breeding and Genetics, 39(1), 31–41.
Sharma, A., Sood, M., Rana, A., & Singh, Y. (2007). Genetic variability and association studies for green pod yield and component horticultural traits in garden pea under high hill dry temperate conditions. Indian Journal of Horticulture, 64(4), 410–414.
Singh, J.D., & Singh, I.P. (2005). Studies on correlation and path coefficient analysis in field pea (Pisum sativum L.). National Journal of Plant Improvement, 7(1), 59–60.
Singh, R.K., & Choudhary, B.D. (1977). Variance and Covariance Analysis: Biometrical Methods in Quantitative Genetic Analysis. Kalyani Publishers, Ludhiana (Rev. Ed., 1985), pp. 29–68.
Sureja, A.K., & Sharma, R.R. (2004). Path analysis for yield and its attributes in garden pea (Pisum sativum L. sub sp. hortense Asch and Graebn). Indian Journal of Horticulture, 61(1), 42–45.
