Estabilidade fenotípica de genótipos Precoces de soja com aptidão com rotação com cana-de-açucar
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Data
2011-06-02
Autores
Zanni, Welington Augusto [UNESP]
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Universidade Estadual Paulista (Unesp)
Resumo
Este trabalho teve o objetivo de avaliar a estabilidade e a adaptabilidade de 50 genótipos de soja [Glycine max (L.) Merrill], sendo 46 linhagens precoces, pertencente ao programa de melhoramento de soja da UNESP/FCAV- Jaboticabal, SP em parceria com a APTA (Agência Paulista de Tecnologia dos Agronegócios) e cinco cultivares comercialmente utilizadas, em dez ambientes no Estado de São Paulo. Os experimentos foram conduzidos nas safras agrícolas 2006/2007, 2007/2008, 2008/2009 e 2009/2010. O delineamento experimental foi o de blocos ao acaso, com três repetições. Foram realizadas análises individuais e conjunta, considerando o número de dias para a maturidade (NDM), altura da planta na maturidade (APM), acamamento (Ac), valor agronômico (VA) e produtividade de grãos (PG) nos diferentes locais. A estabilidade e a adaptabilidade dos genótipos foram avaliadas pelos métodos de Wricke (1965), Eberhart e Russel (1966), Lin e Binns (1988) e Annicchiarico (1992). As linhagens avaliadas apresentou-se com bom desempenho e aptidão para cultivo em áreas de reformas com cana-de-açúcar, destacando-se os genótipos 12 (JAB.00-03), 29 (JAB.00-06), 30 (JAB.00-06), 31 (JAB.00-02), 32 (JAB.00-02), 44 (JAB.00-02) e 45 (JAB.00-02) e as cultivares 48 (COODETEC 205) e 50 (IAC-FOSCARIN 31) os quais apresentaram boa estabilidade fenotípica e em média, elevada produtividade de grãos. As metodologias de estabilidade e adaptabilidade fenotípica utilizadas foram eficientes quanto à discriminação dos melhores genótipos precoces de soja
This work aimed to evaluate the stability and adaptability of 50 soybean genotypes [Glycine max (L.) Merr.], being 46 strains belonging to the breeding program for soybean UNESP/FCAV- Jaboticabal, SP in partnership with APTA (Agency Paulista Agribusiness Technology) and five cultivars used commercially in ten environments in the State of São Paulo. The experiments were conducted in the growing seasons 2006/2007, 2007/2008, 2008/2009 and 2009/2010. The experimental design was randomized blocks with three replications. Analysis were performed individual and joint, considering the number of days to maturity (NDM), plant height at maturity (APM), lodging (Ac), agronomic value (AV) and seed yield (PG) in different locations. The stability and adaptability of genotypes were evaluated by methods Wricke (1965), Eberhart and Russell (1966), Lin and Binns (1988) and Annicchiarico (1992). The strains evaluated presented with good performance and suitability for cultivation in areas of reforms with cane sugar, highlighting the genotypes 12 (JAB.00-03), 29 (JAB.00-06), 30 (JAB .00-06), 31 (JAB.00-02), 32 (JAB.00-02), 44 (JAB.00-02) and 45 (JAB.00-02) and 48 cultivars (COODETEC 205) and 50 (Foscarini IAC-31) which showed good stability phenotypic , high grain yield. The methodologies used phenotypic stability and adaptability were efficient as the best discrimination of soybean genotypes
This work aimed to evaluate the stability and adaptability of 50 soybean genotypes [Glycine max (L.) Merr.], being 46 strains belonging to the breeding program for soybean UNESP/FCAV- Jaboticabal, SP in partnership with APTA (Agency Paulista Agribusiness Technology) and five cultivars used commercially in ten environments in the State of São Paulo. The experiments were conducted in the growing seasons 2006/2007, 2007/2008, 2008/2009 and 2009/2010. The experimental design was randomized blocks with three replications. Analysis were performed individual and joint, considering the number of days to maturity (NDM), plant height at maturity (APM), lodging (Ac), agronomic value (AV) and seed yield (PG) in different locations. The stability and adaptability of genotypes were evaluated by methods Wricke (1965), Eberhart and Russell (1966), Lin and Binns (1988) and Annicchiarico (1992). The strains evaluated presented with good performance and suitability for cultivation in areas of reforms with cane sugar, highlighting the genotypes 12 (JAB.00-03), 29 (JAB.00-06), 30 (JAB .00-06), 31 (JAB.00-02), 32 (JAB.00-02), 44 (JAB.00-02) and 45 (JAB.00-02) and 48 cultivars (COODETEC 205) and 50 (Foscarini IAC-31) which showed good stability phenotypic , high grain yield. The methodologies used phenotypic stability and adaptability were efficient as the best discrimination of soybean genotypes
Descrição
Palavras-chave
Soja, Interação G x A, Linhagens de soja, Glycine max, Interaction G x A, Soybenas strains
Como citar
ZANNI, Welington Augusto. Estabilidade fenotípica de genótipos Precoces de soja com aptidão com rotação com cana-de-açucar. 2011. xv, 80 f. Dissertação (mestrado) - Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, 2011.