Estimation of Correlation and Path Coefficient Analysis of Yield and its Components in JNPT Lines of Rice Choudhary Pratibha*, Mishra D.K., Tiwari Akanksha Department of Genetics and Plant Breeding, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur, Madhya Pradesh, 482004 *email: prratibha08@gmail.com
Online published on 15 December, 2016. Abstract Correlation and path coefficient analyses have been successfully used for plant selection for increasing yields of different crops. Association analysis studies indicated that grain yield of rice had positive correlations with panicle weight per plant, biological yield per plant, number of panicle per plant, harvest index, number of tillers per plant, filled spikelet per panicle, panicle index, days to 50% flowering, days to maturity and fertility %. Path coefficient analysis revealed that direct selection for plant height, panicle weight per plant, panicle index, biological yield per plant, harvest index, fertility %, thousand grain weight, days to maturity, number of panicle per plant, number of tillers per plant and stem thickness. The traits like panicle weight per plant, panicle index, biological yield per plant, harvest index, fertility %, days to maturity, number of panicle per plant, number of tillers per plant and stem thickness revealed positive direct effect on seed yield and also significant positive correlation with seed yield per plant. It indicates true relationship between them and direct selection for these traits will be rewarding for yield enhancement. Top Keywords Path coefficient, correlation, JNPT lines, direct indirect selection, association analysis. Top |