Asian soybean rust: modeling the impact on soybean grain yield in the Triângulo Mineiro/Alto Paranaíba region, Minas Gerais, Brazil / Ferrugem asiática da soja: modelagem do impacto na produtividade da soja na região do Triângulo Mineiro/Alto Paranaíba, Minas Gerais, Brasil
Biosci. j. (Online)
;
29(2): 264-279, mar./apr. 2013. tab, ilus
Artigo
em Inglês
| LILACS
| ID: biblio-914387
ABSTRACT
Understanding the impact of Asian soybean rust on soybean yield is of great importance in the crop simulation model for this crop become it is possible to predict yield using different sowing dates and growth conditions. The goal of this study were to evaluate the performance of two soybean cultivars in Triângulo Mineiro/Alto Paranaíba, MG, Brazil and the effects of soybean rust on the yield of these cultivars using the CSM-CROPGRO Soybean model. Two soybean cultivars "NK 7074" (early) and "UFUS-Impacta" (medium late), which differ in their development cycles, were growing in Uberaba city during the 2009/2010 growing season. The validation for cultivar "UFUS-Impacta" was conducted comparing the measured and simulated yield data considering three different sowing dates in the "Uberlândia" city during the 2002/2003 growing season. Daily meteorological data obtained from six meteorological stations of the National Institute of Meteorology (INMET). To determine the performance of the soybean cultivars and the effect of soybean rust on yield, three different scenarios were used no occurrence of rust (NOR) and occurrence of rust with inoculum concentrations of U5.000 and U10.000 urediniospores/mL. For all environments studied, the early cultivar had the best performance than the medium late cultivar. Soybean rust had the most effect on yield for the U10.000 scenario than for the U5.000 scenario. The best soybean performance occurred for "Araxá" and "Uberaba" cities. The SouthSoutheast area of the "Triângulo Mineiro/Alto Paranaíba" region was the most sensitive to the effect of rust on yield compared to the North region.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Glycine max
/
Eficiência
/
Phakopsora pachyrhizi
/
Produção Agrícola
Tipo de estudo:
Estudo prognóstico
País/Região como assunto:
América do Sul
/
Brasil
Idioma:
Inglês
Revista:
Biosci. j. (Online)
Assunto da revista:
Agricultura
/
Disciplinas das Cincias Biol¢gicas
/
Pesquisa Interdisciplinar
Ano de publicação:
2013
Tipo de documento:
Artigo
País de afiliação:
Brasil
/
Estados Unidos
Instituição/País de afiliação:
EMBRAPA Goiás/BR
/
EMBRAPA Paraná/BR
/
EMBRAPA Rio Grande do Sul/BR
/
Universidade Federal de Uberlândia/BR
/
Universidade Federal de Viçosa/BR
/
Universidade da Florida/US
/
Universidade de Passo Fundo/BR
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