Volume 7, Issue 4 (winter 2004)
jwss 2004, 7(4): 199-214 |
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K. Zaynali Nejad, A. F. Mirlohi, G. Nemat Zadeh, A. Rezai. Genetic Diversity in some of Iranian Rice (Oriza sativa L.) Germplasm Base on Morphological Traits. jwss 2004; 7 (4) :199-214
URL: http://jstnar.iut.ac.ir/article-1-495-en.html
URL: http://jstnar.iut.ac.ir/article-1-495-en.html
Abstract: (24053 Views)
To study the genetic diversity in 100 genotypes of rice, an experiment was conducted at the research farm of Rice Research Institute of Iran. The experimental design was a 10x10 simple lattice. The genotypes, mostly belonging to Isfahan Province and north of Iran, were evaluated on the basis of morphological traits and yield components. The results of analysis of variance demonstrated that the differences among genotypes were highly significant (p < 0/01) for all traits. High values of phenotypic and genotypic coefficients of variation were obtained for most traits, indicating high variability in the traits under study. Factor analysis revealed three factors which determined 90 percent of yeild variation and were named “grain number”, “plant type and structure” and “grain shape”, respectively. Cluster analysis by “Cubic Clustering Criterion” and “Pseudo Hotelling T2 Test” grouped genotypes in four clusters. Analysis of variance showed that the differences among clusters were highly significant for most traits.
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