Determination of Drought Tolerance Indices as Selection Criteria of Rice Genotypes under Water Defic

The incident of rice genotypes accompanying impressive tolerance to abiotic stress is individual of the primary aims of rice training programs. The current study was carried out to determine the capability of different indications to identify edible grain genotypes that are drought-open-minded under Egyptian conditions during two together growing seasons 2018 and 2019. Thirteen dryness tolerance indications were calculated utilizing the grain yield of twenty rice genotypes. According to the linked analysis of difference for grain yield, skilled were highly important differences between genotypes (G), watering regimes (I), and their interactions. All dryness tolerance indications, as well as grain yields under non-stress and stress environments (Yp and Ys), exhibited meaningful variations between genotypes. For Yp, Ys, and all indications assessed, estimates of broad sense heritability (h2) and genetic advance as a portion of mean (GAM%) were high. Using mean conducts, drought fortitude indices, and multivariate analysis, the genotypes Giza 179, Sakha 104, IET 1444, and GZ 6296-12-1-2-1 were superior genotypes under two together stress and non-stress conditions, as were the genotypes Sakha 107, IRAT 170, IR 68552-55-3-2, WAB 56-104, IRGA 318-11-6-2-6, and NERICA -4 worn out conditions. Hence, it was submitted that they can be applyied as parents in hybridization programs that aim to advance the drought fortitude of other edible grain genotypes in Egypt. Furthermore, mean productivity index (MP), geometric mean output (GMP), stress tolerance index (STI), harmonious mean (HM), and yield index (YI) were the tolerance indications that can be top-secret as better predictors of drought tolerance seeing the yield potentials of the genotypes.

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