Abstract
Correlation and Path Analysis Studies in Medium Duration Rice Varieties of Andhra Pradesh
Highlights
Rice (Oryza sativa L) is one of the pivotal staple cereal crops feeding more than half of the world’s population
An analysis of these results revealed wide range of variability for grain yield/ ha followed by effective tillers /plant
The phenotypic coefficient of variation (PCV) was observed to be higher than the genotypic coefficient of variation (GCV) for all traits studied in the present investigation, indicating the influence of environment
Summary
Rice (Oryza sativa L) is one of the pivotal staple cereal crops feeding more than half of the world’s population. In view of the growing population the basic objective of all the plant breeders would be towards yield improvement. Development of high yielding varieties requires information on association of characters contributing to yield in addition to their direct and indirect effects towards yield. This kind of analysis could help the breeder to design his selection strategies to improve grain yield. In this context the present investigation was carried out with the objective of studying the character association and path effects of yield components on grain yield in rice varieties of medium duration for their yield improvement. Earlier this work was reported by many researchers in various yield attributing characters like days to maturity [1,2,3], plant height [4,5,6], productive tiller/plant, panicle Length [7,8] and 1000 seed weight [6,9,10]
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