%0 Journal Article %A Zarbafi, S. S. %A Rabiei, B. %A Allahgholipour, M. %T Genetic Analysis of Grain Yield Related Traits in Rice %J Journal of Crop Production and Processing %V 4 %N 14 %U http://jcpp.iut.ac.ir/article-1-2277-en.html %R %D 2015 %K Diallel, Gene action, Hayman graphical analysis, Heritability, Rice, %X To determine gene action and heritability of grain yield related traits in rice, six rice varieties including Hashemi, Vandana, Kadous, Hassani, Shahpasand and IR36 were crossed in a diallel design in 2010. The parents and seeds of F1 generation (36 genotypes) were grown in a completely randomized block design with three replications at the Research Field of the Rice Research Institute of Iran-Rasht in 2011. In this experiment, the yield related traits including grain yield, number of panicles per plant, number of spikelet’s per panicle, 1000-grain weight, plant height, panicle length and flag leaf area were measured in each experimental unit. Evaluation of the gene action based on the Hayman graphical method indicated that 1000-grain weight was controlled by partial dominance effect and the other attributes were controlled by complete dominance to over-dominance effects. Broad-sense heritability varied from 54.91% to 99.84% for flag leaf area and plant height, respectively and narrow-sense heritability ranged from 26.04% to 88.68% for panicle length and 1000-grain weight, respectively. Results of this research showed that the additive gene effect can be used to improve several traits including 1000-grain weight, but utilizing the heterosis phenomenon and hybrid production is recommended to improve the remaining traits in the studied population. %> http://jcpp.iut.ac.ir/article-1-2277-en.pdf %P 161-173 %& 161 %! %9 Research %L A-10-1-223 %+ Department of Agronomy and Plant Breeding, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran. %G eng %@ 2251-8517 %[ 2015