Comparison of adaptability and stability estimates in upright peanut genotypes cultivated in Northeast and Midwest regions/Adaptabilidade e estabilidade de genotipos eretos de amendoim cultivados nas regioes Nordeste e Centro-Oeste
This study aimed to estimate the stability and adaptability parameters in upright-peanut genotypes, based on pod and seed yield, through EBERHART & RUSSELL (1966), WRICKE (1965) and LIN & BINNS (1988) methodologies. The genotypes were evaluated in 14 environments located in Northeast and Mid...
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Veröffentlicht in: | Ciência rural 2015-08, Vol.45 (8), p.1375 |
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Format: | Artikel |
Sprache: | por |
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Zusammenfassung: | This study aimed to estimate the stability and adaptability parameters in upright-peanut genotypes, based on pod and seed yield, through EBERHART & RUSSELL (1966), WRICKE (1965) and LIN & BINNS (1988) methodologies. The genotypes were evaluated in 14 environments located in Northeast and Midwest regions, during 2006 to 2011, in a randomized blocks design, with five replications. EBERHART & RUSSELL (1966) and LIN & BINNS (1988) methodologies revealed similar results, identifying genotypes with high adaptability and stability to pod and seed yield. The BRS 151 L7 and L7 Bege were the most productive, revealing specific adaptability to favorable environment, while CNPA 280AM revealed broad adaptability and high phenotypical stability. Key words: Arachis hypogaea, genotype x environment interaction, yield, arid zone, savanna. O presente trabalho teve por objetivo estimar a estabilidade e a adaptabilidade de oito genotipos de amendoim ereto e comparar os modelos de analise de EBERHART & RUSSELL (1966), WR1CKE (1965) e LIN & BINNS (1988), baseando-se em dados de produtividade de vagens e sementes. Os genotipos de amendoim foram avaliados em 14 ambientes situados nas Regioes Nordeste e Centro-Oeste, durante os anos de 2006 a 2011, sob o delineamento de blocos ao acaso com cinco repeticoes. Verificou-se que, entre os tres metodos estudados, os de EBERHART & R USSELL(1966) e LIN & BINNS (1988) geraram informacoes concordantes para estimativas de adaptacao e estabilidade de producao de vagens e sementes, baseando-se nas condicoes deste estudo. Os genotipos L7 Bege e BRS 151 L7 foram os mais produtivos, com adaptabilidade especifica a ambientes favoraveis, enquanto que CNPA 280 revelou adaptabilidade ampla e alta estabilidade fenotipica. Palavras-chave: Arachis hypogaea, interacao genotipo x ambiente, produtividade, semiarido, cerrados. |
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ISSN: | 0103-8478 |
DOI: | 10.1590/0103-8478cr20140414 |