نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه مهندسی تولید و ژنتیک گیاهی، دانشکده علوم کشاورزی، دانشگاه گیلان، رشت، ایران
2 گروه مهندسی تولید و ژنتیک گیاهی، دانشکده علوم کشاورزی، دانشگاه گیلان، رشت، ایران.
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
One of the critical stages in plant breeding programs is the genotype-by-environment interaction and the selection of high-yielding and stable genotypes. In this research, 20 pure rice lines were evaluated in a randomized complete block design with three replications over three years (2020, 2021 and 2022) at the Rice Research Institute of country (Rasht) for identification of high-yielding and stable genotypes. The analysis of variance of the main effects of year, genotype and genotype-by-year interaction showed significant differences at 1% probability level. The results of stability analysis using the GGE-biplot method showed that the first two components described a total of 97.43% of the variation in genotype and genotype-environment interaction, indicating the validity of the GGE-biplot method in explaining performance variations of genotypes. Based on the biplot polygon, lines 9, 19, 2, 6, 3 and 9 were identified as the most responsive lines. In the genotype-focused scaling diagram, line 9 was the closest to the genotype ideal line. The analysis of other characteristics of the studied lines revealed that lines 9, 10 and 13 exhibited shorter maturity time and plant height, along with a more moderate and desirable cooking quality compared to other lines. Therefore, these three lines are recommended for further experimentation to introduce a new variety
کلیدواژه‌ها [English]
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