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GENETIC VARIABILITY IN RAIN-FED LOWLAND RICE BREEDING POPULATION UNDER NORMAL AND DELAYED TRANSPLANTING CONDITIONS
N.K. SINGH, A.K. SINGH, A.K. MALL

Published in: International Journal of Agriculture Sciences
Volume- 9, Issue-30, pp.4431-4434, Jun 2017
DPI :-> 16.10077.IJAS.2017.V9I30.44314434.1751



Abstract
The importance of additive gene effects for most of the nine traits in the three crosses under two transplanting conditions suggested substantial scope of improvement in yield status can still be achieved by using breeding procedures. GY/P, BY/P and PH possessed high heritability and genetic advance in both conditions and emerged as ideal traits for selection. G/P, T/P and DFF in E1 and HI in E2 appeared also as ideal traits for selection owing to their high estimates for both parameters in respective conditions. At both levels, positive correlation of GY/P was recorded with HI in both transplanting conditions. BY/P, PL in both transplanting conditions and T/P and G/P in E1 appeared as strong positive associates of GY/P at both levels. Path analysis identified BY/P and HI as most important direct components and PL and G/P as most important indirect components of GY/P in both conditions. These characters merit due to consideration in formulating effective selection strategy in rainfed lowland rice for developing high yielding varieties for normal and delayed transplanting.

Key-Words / Index Term
Rice, Normal and delay transplanting, GCV, PCV, Correlation, Direct and indirect effects

How to cite this article
N.K. SINGH, A.K. SINGH, A.K. MALL , “GENETIC VARIABILITY IN RAIN-FED LOWLAND RICE BREEDING POPULATION UNDER NORMAL AND DELAYED TRANSPLANTING CONDITIONS”, International Journal of Agriculture Sciences, 9, Issue-30, pp.4431-4434, Jun 2017. DPI:16.10077.IJAS.V9.I30.1751