This study conducted for assessing heterosis, genetic parameters, gene action and heritability of important milling traits in rice. The crosses of North Carolina design III with their parents were planted in a randomized complete block design with three replications in experimental field at Rice Research Institute of Iran, in 2015. The ANOVA analysis of NCIII showed that for all studied traits, there is a significant difference between the mean of progeny derived from F2, the means of progenies obtained from Gilaneh had a significant difference with the means of progeny derived from the Deylamani for these traits and Deylamani and Gilaneh varieties had affected on the offspring. Estimation of genetic parameters revealed that for BRW, WRW, HRW and KL, additive effects of gene action have more portion in genetic controlling of these traits. Over-dominance phenomenon revealed due to greater than one estimates of average degree of dominance (DD), for BRW and HRW. Results of mid-parent heterosis revealed a range of -0.22 to 5.51% in BRW, -3.46 to 4.06% for WRW, -21.26 to 16.19% for HRW, and -2.9 to 19.22% in KL.
Alireza Haghighi Hasanalideh. Gene Action and Heterosis for Milling Traits in Rice (Oryza Sativa L.) Through North Carolina III Mating Design.
DOI: https://doi.org/10.36478/10.36478/makrja.2024.1.1.5
URL: https://www.makhillpublications.co/view-article/1815-9354/10.36478/makrja.2024.1.1.5