Deciphering Genotype×Environment Interaction by AMMI and GGE Biplot Analysis Among Elite Wheat (Triticum aestivum L.) Genotypes of Himalayan Region

Authors : Adil NAIK, Shabir Hussain WANI, Sumira RAFIQEE, Mehrajuddin SOFI, Najeebul Rehman SOFI, Asif Bashir SHIKARI, Ashaq HUSSAIN, Fayaz MOHIDDIN, Intikhab Aalum JEHANGIR, Gazala Hassan KHAN, Muneer Ahmed SOFI, Farooq Ahmed SHEIKH, Mohammad Ashraf BHAT, Mohammad

Pages : 41-52

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Publication Date : 2022-01-30

Article Type : Research Paper

Abstract :To determine yield stability and the effects of the interaction between the genotype and the environment, 101 wheat genotypes were assessed over 2 years insert ignore into journalissuearticles values(2018-2020);. The experiments were performed at different diverse locations in Kashmir traversing a significant altitudinal range viz. Khudwani insert ignore into journalissuearticles values(34.38°N of latitude and 77.0°E of longitude); and Wadura insert ignore into journalissuearticles values(34.52°N of latitude and 74.52°E of longitude); following recommended agronomical practices. Analysis of the main additive effect and multiplicative interaction insert ignore into journalissuearticles values(AMMI); of the seed yield variance revealed a significant genotype, environmental and genotype × environment interaction effect at p< 0.01% probability level. Three main principal components based on AMMI explained most of the variation due to genotype × environment interaction at p<0.01% probability level. The GGE biplot indicated that two mega-environments were present. The first section insert ignore into journalissuearticles values(large environment); contains the KH18 and WA18 test environments with genotypes G2, G38, and G16 with the highest yield insert ignore into journalissuearticles values(winner);, the second section insert ignore into journalissuearticles values(large environment); contains KH19 and genotypes G28, G19 and G3, KH19 and WA18 WA19 environment included. as a winner. Plots of mean versus stability show that the genotypes exhibiting both high mean yield and stability scores at the test sites are G2, G50, G26, G80, and G1. Hence, the above identified genotypes with superior yield and other desirable attributes can be recommended as generally adapted or niche specific genotypes for broad and specific areas, respectively.
Keywords : Wheat germplasm, biplot, wheat yield stability, principal component, wheat screening, Wheat germplasm, biplot, wheat yield stability, principal component, wheat screening