کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8408744 1545076 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Genotype-by-environment interaction for grain yield among novel cowpea (Vigna unguiculata L.) selections derived by gamma irradiation
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
Genotype-by-environment interaction for grain yield among novel cowpea (Vigna unguiculata L.) selections derived by gamma irradiation
چکیده انگلیسی
This study determined the effects of genotype-by-environment (G × E) interaction and stability of yield among elite cowpea (Vigna unguiculata L.) selections derived by gamma irradiation. The study was conducted in Namibia at three selected sites: Bagani, Mannheim, and Omahenene, during 2014/2015 and 2015/2016. Thirty-four newly developed mutant genotypes and three local checks were evaluated using a randomized complete block design with three replications. Grain yield data were analyzed using the additive main effects and multiplicative interaction (AMMI) and the genotype main effect plus genotype-by-environment interaction (GGE) biplot methods. The AMMI and GGE biplot models explained 77.49% and 75.57% of total observed genotypic variation, respectively. Bagani and Omahenene were the environments best discriminating the test genotypes during 2014/2015 and 2015/2016, respectively. Four promising mutant genotypes: G9 (ShL3P74), G10 (ShR3P4), G12 (ShR9P5), and G4 (ShL2P4), showed wide adaptation and grain yields of 2.83, 2.06, 1.99, and 1.95 t ha− 1, respectively. The novel mutant lines are useful genetic resources for production or future cowpea breeding programs in Namibia or similar environments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Crop Journal - Volume 6, Issue 3, June 2018, Pages 306-313
نویسندگان
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