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Journal of Agricultural Science and Technology، جلد ۱۲، شماره ۲، صفحات ۲۱۳-۲۲۲
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عنوان انگلیسی Analysis of Grain Yield Stability in Hexaploid Wheat Genotypes Grown in Temperate Regions of Iran Using Additive Main Effects and Multiplicative Interaction
چکیده انگلیسی مقاله Eighteen wheat breeding lines were evaluated along with two check cultivars across nine locations of temperate zone of Iran during two crop seasons (2003-2004 and 2004-2005). Field records were taken for some important traits especially grain yield. Combined ANOVA for nine locations in the first season and for seven locations in both seasons was undertaken. In each case, additive main effects and multiplicative interaction analysis (AMMI) was employed and the biplot of the Interaction Principal Components (IPC) were evaluated for stability and adaptation relationships among genotypes and locations. IPC1, IPC2 and IPC3 accumulatively defining 78.4% of genotype×environment (G×E) interaction variation were found out as significant in the first crop season. Biplot of first two IPCs identified at least two sub-regions among the locations. Some genotypes (M-82-7 and M-82-17) showed specific adaptation toward one of the drought-prone sub-regions. For the combined data of both seasons, only IPC1 was significant defining 41.5% of G×E interaction variation. Thus, plot of IPC1 along with grain yield means were employed for an interpretation of adaptation relationships. Entries M-82-8, M-82-9, M-82-11 and M-82-15 showed specific adaptation to Mashhad station which was interactive and particular in behavior. The results indicated that AMMI is an informative method of stability and adaptation analysis to be employed in practical plant breeding and subsequent variety recommendations.
کلیدواژه‌های انگلیسی مقاله adaptation, AMMI, Bread wheat, Grain yield, Stability
نویسندگان مقاله g نجفیان |
department of cereals research, seed and plant improvement research institute, blvd. shahid fahmideh, karaj, islamic republic of iran.

علی اکبر کفاشی | a k
agricultural research center, kermanshah, islamic republic of iran.

a جعفر نژاد | jafar nezhad
agricultural research center, neishabour, islamic republic of iran

نشانی اینترنتی http://jast.modares.ac.ir/article_4368_142de32fd34ccd47023a177a77a38bb1.pdf
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زبان مقاله منتشر شده en
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