Laxmi Singh*, Nandan Mehta, Ashish Kumar Tiwari and Madhuri Grace Minj
Department of Genetics and Plant Breeding, IGKV, Raipur- 492 012
Email : laxmisingh8811@gmail.com
Received-24.10.2015, Revised-02.11.2015
Abstract: Association analysis gives an idea about relationship among the various characters and determines the component characters, on which selection can be based for genetic improvement in the grain yield. Three hundred seventy nine (379) lines of F3 progenies of cross between Swarna x IR86931-B-6 and MTU1010 x IR86931-B-6 were conducted in field of research cum instructional farm, College of Agriculture, IGKV, Raipur (C.G.). Rice crop was grown in irrigated and water stress condition rainout shelter I (ROS I) and rainout shelter II (ROS II). In irrigated condition, grain yield showed highly significant and positive correlation with plant height (0.724), total tillers (0.919) and effective tillers (0.925). Under water stress condition, effective tillers possessed significant and positive association with plant height (0.695=ROS I; 0.453=ROS II) and with total tillers (0.969=ROS I; 0.967=ROS II). Similarly, total tillers exhibited significant and positive association with plant height (0.708=ROS I; 0.518=ROS II).
Keywords: Correlation, Rice (Oryza sativa L.), Yield
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