Genetic Variability and Association Analysis in Rice.
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Date
2014-04
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Abstract
Genetic variability, character association and path analysis between yield and its contributing traits were
studied in 49 Rice cultures. Analysis of variance revealed the existence of significant differences among genotypes for all
characters studied. The magnitude of PCV and GCV was moderate to high for number of grains per panicle, test weight
and grain yield. High heritability coupled with high genetic advance as per cent of mean was observed for test weight and
grain yield indicating the role of additive gene in expressing these traits. Grain yield was significant positively correlated
with number of grains per panicle, panicle length and test weight. Path coefficient analysis indicated that number of
grains per panicle, test weight and productive tillers per square meter were essential traits to be considered for realizing
the improvement in yield.
Description
Keywords
Correlation, genetic variability, path analysis and Rice
Citation
Rao V Thirumala, Mohan Y Chandra, Bhadru D, Bharathi D, Venkanna V. Genetic Variability and Association Analysis in Rice. International Journal of Applied Biology and Pharmaceutical Technology. 2014 Apr-June; 5(2): 63-65.