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Asian Journal of Crop Science
  Year: 2013 | Volume: 5 | Issue: 3 | Page No.: 319-324
DOI: 10.3923/ajcs.2013.319.324
 
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Genotypic Correlation and Path Coefficient for Some Agronomic Traits of Hybrid and Inbred Rice (Oryza sativa L.) Cultivars

Jakkrit Seesang, Prapa Sripicchitt, Pornpen Somchit and Tanee Sreewongchai

Abstract:
Association of agronomic traits contributed towards grain yield will be an added advantage in aiding the selection process. The objective of this study was to compare genetic variability and relationships among traits between hybrids and inbreds genotypes. Crossing between 2 A-lines and 6 R-lines were done for the experiment. The experiment was performed in Augmented in RCBD with three replications. Broad sense heritability and genetic advance of hybrids were higher than inbreds in number of tillers, number of filled seeds per panicle, plant height and grain yield. Genotypic correlation indicated that grain yield of hybrids had high positive correlation with number of productive tillers, number of filled seeds per panicle, flag leaf length, plant height and harvest index. Inbred had high positive correlation in number of tillers, number of productive tillers and 1000-seed weight. Path coefficient revealed that number of productive tillers, number of seeds per panicle, plant height and harvest index had positive direct effect on grain yield of hybrids. However, number of tillers, number of seeds per panicle, 1000 grain weight and flag leaf length had positive direct effect on grain yield for inbreds genotypes. Hence, number of productive tillers, number of seeds panicle-1 and harvest index could be used for selection criteria of hybrid genotype.
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How to cite this article:

Jakkrit Seesang, Prapa Sripicchitt, Pornpen Somchit and Tanee Sreewongchai, 2013. Genotypic Correlation and Path Coefficient for Some Agronomic Traits of Hybrid and Inbred Rice (Oryza sativa L.) Cultivars. Asian Journal of Crop Science, 5: 319-324.

DOI: 10.3923/ajcs.2013.319.324

URL: https://scialert.net/abstract/?doi=ajcs.2013.319.324

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