Volume 10, Issue 2 (summer 2006)
jwss 2006, 10(2): 99-107 |
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A. Abouzari Gazafrodi, R. Honarnegad, M. H. Fotokian, A. Alami. Study of Correlations among Agronomic Traits and Path Analysis in Rice (Oryza sativa L.). jwss 2006; 10 (2) :99-107
URL: http://jstnar.iut.ac.ir/article-1-546-en.html
URL: http://jstnar.iut.ac.ir/article-1-546-en.html
Abstract: (18300 Views)
In order to investigate path analysis and study correlations among 16 agronomic traits, 49 Iranian and foreign rice entries were evaluated in a simple lattice square as experimental design with 2 replications at research farm of Tonekabon agricultural college in 2001. Analysis of variance showed significant difference among genotypes for all the studied traits (p<0.05). Phenotypic and genotypic correlation analysis showed positive and significant correlation between grain yield and the number of productive tiller, total tillers and number of grain per panicle. Based on path analysis of the traits, the number of productive tillers had the highest direct effect on the grain yield. Furthermore, the number of grain per panicle and 100-grain weight had a high direct effect on the yield. Overall, the results are suggestive of the direct selection for grain yield in these genotypes through above - mentioned traits.
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