Vol. 9, Issue 9 (2020)

Author(s):
Suraj Kumar Hitaishi, SC Vimal and Amit Kumar Chaudhary

Abstract:
The present investigation were assessed to work out the association of different grain yield attributes and physiological parameters, direct and indirect effects of their various traits on grain yields. Observations were recorded for yield its contributing traits and physiological parameters. The grain yield having positive and strong correlation with chlorophyll content (0.871), harvest index (0.864), grains per panicle (0.632), spikelet per panicle (0.555), leaf temperature (0.553), and panicle length (0.513) and 1000-grain weight (0.493) showed positive and strong significant association with grain yield per plant at phenotypic level where as plant height and days to 50% flowering possessed significant negative correlation with grain yield per plant. Spikelet per panicle (0.580), biological yield per plant (0.570), harvest index (0.331), flag leaf area (0.164), protein content (0.142), days to maturity (0.129), chlorophyll content (0.107), spikelet fertility (0.098) and leaf temperature (0.045) exhibited direct effect on grain yield. Considering the correlation and path analysis flag leaf area, grains per panicle, 1000-grain weight and harvest index are important characters be considered for yield improvement.