Additive Main Effects and Multiplicative Interactions (AMMI) Analysis of Grain Yield in Barley Genotypes Across Environments

Abstract

The study was carried out to analyze grain yield performances of nine varieties and sixteen advanced barley genotypes across eight environments of Southeastern Anatolia, Turkey, between 2003-2007 growing seasons. The experimental layout was randomized complete block design with four replications. Additive main effects and multiplicative interactions analysis (AMMI) revealed that the yield performances of genotypes were under the main environmental effects of genotype by environmental interactions. The first two principal component axes (IPCA 1 and IPCA 2) were significant (P<0.01) and cumulatively contributed to 61.07% of the total genotype by environmental interaction. According to the AMMI biplot analysis, genotype G17 and G21 had the desirable characteristics of high or moderate stability with high grain yield and were thus recommended for commercial release in Turkey and genotypes G7, G9 and the G8 proved to be valuable sources for yield stability in barley breeding programs.

Keywords

• AMMI analysis
• Barley
• Biplot analysis
• Grain yield
• Stability

Arpa Genotiplerinde Çevreler Üzerinden Tane Verimlerinin Eklemeli Ana Etkiler ve Çarpımsal İnteraksiyonlar Analizi

Abstract

Bu çalışma, 16 ileri hat ve 9 arpa çeşidinin 8 çevrede verim performanslarını belirlemek amacıyla 2003-2007 yılları arasında yürütülmüştür. Denemeler, tesadüf blokları deneme deseninde 4 tekerrürlü olarak kurulmuştur. Eklemeli ana etkiler ve çarpımsal interaksiyonlar analizi (AMMI), genotip × çevre interaksiyonunda genotiplerin verim performansları üzerine çevresel etkilerin baskın olduğunu göstermiştir. İlk iki ana bileşen ekseni (PCA 1 ve PCA 2), istatistiki olarak önemli (P<0.01) bulunmuş ve genotip × çevre interaksiyonunun % 61.07’sini açıklamıştır. AMMI modeli esas alınarak yapılan biplot analizlerinden elde edilen bulgular: (1) orta veya yüksek stabilite ile birlikte yüksek tane verimine sahip olmaları sebebiyle G17 ve G21 genotipleri Türkiye’de tescile teklif edilmiştir; (2) G7, G9 ve G8 genotiplerinin verim stabilitesi bakımından arpa ıslah programları için önemli bir kaynak oldukları tespit edilmiştir.

Keywords

• AMMI analizi
• Arpa
• Biplot analizi
• Tane verimi
• Stabilite

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