A STUDY OF GENOTYPE BY ENVIRONMENT INTERACTION IN OILSEED RAPE GENOTYPES, USING GGE BIPLOT METHOD

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JAVIDFAR F.; ALIZADEH B.; AMIRI OGHAN H.; SABAGHNIA N.

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Journal: Iranian Journal of Field Crop Science Year:2010 | Volume:41 | Issue:4 Page(s): 771-779

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Title

A STUDY OF GENOTYPE BY ENVIRONMENT INTERACTION IN OILSEED RAPE GENOTYPES, USING GGE BIPLOT METHOD

Author(s)

JAVIDFAR F. | ALIZADEH B. | AMIRI OGHAN H. | SABAGHNIA N. | Issue Writer Certificate

Keywords

MULTI-ENVIRONMENTAL TRIALSQ3

GXE INTERACTIONQ2

GGE BIPLOTQ2

Abstract

Genotype evaluation and mega-environmental identification are among the most important objectives of MULTI-ENVIRONMENTAL TRIALS. Although the measured yield is a combined result of effects of genotype (G), environment (E), and genotype by environment interaction (GE), only genotypes and GE interaction are relevant to genotype evaluation and mega-environmental identification. This study presents a GGE (ie, G+GE) biplot, which is constructed by the first two symmetrically scaled principal components (PC1 and PC2). The GGE BIPLOT graphically displays G plus GE of a multienvironmental trial in a way that facilitates visual genotype evaluation and mega environmental identification. This strategy was employed to analyse winter canola (Brassica napus L.) multi-environmental trial data. The stabilities for yield of 24 canola genotypes were determined using replicated trials for two years and nine locations. The first two principal components (PC1 and PC2) of the SREG model accounted for 65% of the total GE interaction. There were six winning genotypes and three megaenvironments according to the SREG model and polygon view of biplot. According to the ideal-genotype biplot, genotype DP.94.8 was better than all the other genotypes and had the general adaptability for all the environments; it exhibited both high mean yield and high stability of performance across environments. The estimated relative yield of genotypes in Karaj revealed that genotype SLM046 yielded the highest in Karaj area.According to genotype+GE interaction sources of variations, the genotypes Olara, Consul and SLM046 were the most suitable varieties for the canola producing regions in Iran and had the specific adaptability for each and any of the environments. The results of this study should help in determining the test sites or environments for winter canola comparisons in Iran. Based on the obtained results, genotype Consul for Arak, genotype Olara for Shahrekord and genotype SLM046 for Isfahan, Eslamabad, Sanandaj, Zarghan, Zanjan, Karaj, and Hamadan were the ones proposed for cultivation.

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APA: Copy

JAVIDFAR, F., ALIZADEH, B., AMIRI OGHAN, H., & SABAGHNIA, N.. (2010). A STUDY OF GENOTYPE BY ENVIRONMENT INTERACTION IN OILSEED RAPE GENOTYPES, USING GGE BIPLOT METHOD. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 41(4), 771-779. SID. https://sid.ir/paper/153459/en

Vancouver: Copy

JAVIDFAR F., ALIZADEH B., AMIRI OGHAN H., SABAGHNIA N.. A STUDY OF GENOTYPE BY ENVIRONMENT INTERACTION IN OILSEED RAPE GENOTYPES, USING GGE BIPLOT METHOD. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2010;41(4):771-779. Available from: https://sid.ir/paper/153459/en

IEEE: Copy

F. JAVIDFAR, B. ALIZADEH, H. AMIRI OGHAN, and N. SABAGHNIA, “A STUDY OF GENOTYPE BY ENVIRONMENT INTERACTION IN OILSEED RAPE GENOTYPES, USING GGE BIPLOT METHOD,” IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 41, no. 4, pp. 771–779, 2010, [Online]. Available: https://sid.ir/paper/153459/en

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