Análise de biplot GGE da interação genótipo por ambiente de cultivares de cevada

• Hüseyin Güngör Department of Field Crops, Faculty of Agriculture, Duzce University, 81620, Duzce, Turkey. https://orcid.org/0000-0001-6708-6337
• Mehmet Fatih Çakır Environment and Health Coordination Technical Specialization, Duzce University, Duzce, Turkey. https://orcid.org/0000-0003-1354-9476
• Ziya Dumlupınar Department of Agricultural Biotechnology, Faculty of Agriculture, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey. https://orcid.org/0000-0003-3119-6926

Palavras-chave: rendimento de grãos, componentes de rendimento, multi-ambientes, estabilidade

Resumo

Este estudo foi realizado para determinar o rendimento de grãos, componentes de rendimento e algumas características de qualidade de 17 genótipos de cevada (Hordeum vulgare L.)  em seis ambientes na região de Trácia da Turquia, utilizando análise de componentes principais (ACP) e análise de biplot GGE (genótipo G + interação genótipo x ambiente GE) para definir os genótipos com maior rendimento e características de qualidade desejáveis durante as safras 2016-2017 e 2017-2018. Os valores médios dos genótipos variaram de 5106-6753 kg.ha^-1 para rendimento de grãos, de 103,4-117,1 dias para data de perfilhamento, de 94,6-110,3 cm para altura de planta, de 6,26-10,07 cm para comprimento de espiga, de 25,0-75,5 número de grãos por espiga, de 1,20-2,99 g de peso de grão por espiga, de 35,0-50,5 g para peso e número de sementes por mil, e de 56,4-64,1 kg.hl^-1 para peso de teste. As relações entre as características e os genótipos examinados foram de 53,9 % como definido pelas análises de biplot PC. A análise de biplot GGE representou 94,77 % da relação de G + GE para o rendimento de grãos. Dois mega círculos foram formados de acordo com o rendimento de grãos, o genótipo Zeus para as localidades E1, E2 e E5 e o genótipo Arcanda para as localidades E3, E4 e E6 foram determinados como genótipos proeminentes. As cultivares Zeus e Arcanda foram identificadas como os genótipos mais ideais e estáveis.

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