Data/hora: 07/06/2024 09:41:53

Provedor de dados: 	91	
País: 	Brazil	
Título: 	Phytosanitary quality of Brachiaria brizantha ‘BRS Piatã’ seeds in function of climate conditions	
Autores: 	Silva,Givanildo Z. da; Martins,Cibele C.; Nascimento,Luciana C. do; Barreto,Gabriel G.; Farias,Otília R. de.	
Data: 	2019-04-01	
Ano: 	2019	
Palavras-chave: 	Forage grasses; Piatã grass; Temperature; Humidity; Phytosanitary barrier.	
Resumo: 	ABSTRACT Infected seeds are one of the main pathogen transmission vehicles, and they are responsible for significant losses in production fields; phytosanitary defense depends on the inoculum and climatic factors. Thus, in this study, it was aimed to identify climatic variables of the regions that propitiate the production of Brachiaria brizantha ‘BRS Piatã’ seeds infected with phytopathogenic fungi. Temperature and rainfall data were obtained from 10 production fields, and phytosanitary quality of the seeds was evaluated with the filter paper method; the means were compared using the Kruskal–Wallis non-parametric analysis. Principal component analysis was performed to determine the relationship between the climatic variables and seed phytosanitary quality. Sites with maximum temperatures higher than 30 °C, mean values close to 25 °C, and rainfall less than 82 mm during harvest were favorable to the incidence of Fusarium spp. The incidence of Bipolaris sp. in the seeds of Piatã grass was favored by temperatures around 19 and 20 °C during the maturation phase. The highest incidence of Exserohilum sp. occurred at the sites in which the temperature during harvest was close to 20 °C and accumulated rainfall, between 167 and 181 mm.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000400237	
Editor: 	Departamento de Engenharia Agrícola  - UFCG	
Relação: 	10.1590/1807-1929/agriambi.v23n4p237-243	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Engenharia Agrícola e Ambiental  v.23 n.4 2019	
Fonte: 	info:eu-repo/semantics/openAccess