Data/hora: 10/06/2024 03:45:18

Provedor de dados: 	102	
País: 	Brazil	
Título: 	Quantitative analysis of two important epidemiological features of the common bean: Phaeoisariopsis griseola pathosystem	
Autores: 	Willocquet,Laetitia; Allorent,Delphine; Savary,Serge.	
Data: 	2004-12-01	
Ano: 	2004	
Palavras-chave: 	Epidemiology; Angular leaf spot; Phaseolus vulgaris; Infection efficiency; Defoliation; Leaf wetness; Monocycle process.	
Resumo: 	This work quantifies two important epidemiological features of the bean (Phaseolus vulgaris)/Phaeoisariopsis griseola pathosystem. The first is the effect of the number of nights of leaf wetness on infection efficiency. Infection efficiency was below 10% when inoculated leaflets were exposed to less than two nights of leaf wetness. Optimum infection efficiencies were obtained after three to four nights of leaf wetness, at about 50%. Further nights of leaf wetness did not increase the infection efficiency. The second feature quantified is the relative rate of leaflet defoliation for varying levels of angular leaf spot severity. It increased with disease severity according to a logarithm-like curve, and a relative rate of 0.23 day-1 was estimated for a severity of 18%. The implications of these results on the disease epidemiology are discussed.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582004000600015	
Editor: 	Sociedade Brasileira de Fitopatologia	
Relação: 	10.1590/S0100-41582004000600015	
Formato: 	text/html	
Fonte: 	Fitopatologia Brasileira  v.29 n.6 2004	
Fonte: 	info:eu-repo/semantics/openAccess