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A risk infection simulation model for fusarium head blight of wheat
Provedor de dados: 102
Autores: Del Ponte,Emerson M.; Fernandes,José Maurício C.; Pavan,Willingthon.
Fusarium Head Blight (FHB) is a disease of great concern in wheat (Triticum aestivum). Due to its relatively narrow susceptible phase and environmental dependence, the pathosystem is suitable for modeling. In the present work, a mechanistic model for estimating an infection index of FHB was developed. The model is process-based driven by rates, rules and coefficients for estimating the dynamics of flowering, airborne inoculum density and infection frequency. The latter is a function of temperature during an infection event (IE), which is defined based on a combination of daily records of precipitation and mean relative humidity. The daily infection index is the product of the daily proportion of susceptible tissue available, infection frequency and spore...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fusarium graminearum; Plant disease modeling; Disease forecast.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582005000600011