Title: Preliminary evaluation of quantitative and qualitative traits of selected rice mutant genotypes derived from Hashemi cultivar
Author: Leila Khazaie
testThis study was conducted with the aim of studying the agronomic traits, preliminary yield evaluation of 18 mutant genotypes (M5) resulting from chemical mutation of Hashemi local rice variety, selected of augmented design in 2019, with control cultivars Hashemi, Anam in a randomized complete block design with three replications, at the Rice Research Institute of Iran, Rasht, in 2020. In this study, Agronomic and morphological characteristics including flowering time, plant height, number of fertile tillers, panicle length, number of filled grains, number of unfilled grains, 100-grain weight, seed length, seed width, head rice yield, amylose content, mean gelatinization temperature, and grain yield were assessed in all genotypes. Results of variance analysis illustrated that the trial treats had significant differences at the level of 1% in terms of studied traits except for the number of fertile tiller traits (p<0.05). Mean comparison of lines yield with Hashemi and Anam cultivars showed that 7 mutant genotypes had superiority over Anam cultivar and 15 mutant genotypes than Hashemi control. So these genotypes were selected considering properties such as short height, Earliness, good grain quality, and high yield for compatibility and sustainability projects.
Keywords: diversity– mutation- preliminary- rice- yield- yield components