Abstract
Stability analysis for some Egyptian rice cultivars was studied in this paper to identify high-yielding stable rice varieties and to determine their suitable areas as well as their adaptability to different climatic and topographic conditions. A field experiments for ten rice varieties were evaluated by designing randomized complete block with three replications in five successive years (2016-2020) at three Agricultural Research Stations (Sakha, Gemmiza and Zarzoura) in Egypt. Result of ANOVA analysis showed high significance in the studied cultivars, environment and genotype-environment interaction indicated that there is genetic diversity among the cultivars yield. Based on the performance of the rice cultivars across the locations, highly promising for grain yield among cultivars studied, the cultivars Giza 178, Sakha 103, Sakha 104, Sakha 101 and Sakha 106 were considered stable and adapted under different environments. Furthermore, the results indicated that studied cultivars slightly differ in their response to the various environmental conditions, which suggested the importance of cultivars assessment under many environments due to identification the best genetic make up for a particular environment.
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