Data/hora: 16/06/2024 11:00:02

Provedor de dados: 	86	
País: 	Brazil	
Título: 	Procedures for evaluating the tolerance of cassava genotypes to postharvest physiological deterioration	
Autores: 	Venturini,Marcela Tonini; Santos,Vanderlei da Silva; Oliveira,Eder Jorge de.	
Data: 	2015-07-01	
Ano: 	2015	
Palavras-chave: 	Manihot esculenta; Genotype screening; Microbial deterioration; Procedure standardization; Shelf life; Storage conditions.	
Resumo: 	Abstract: The objective of this work was to define procedures to assess the tolerance of cassava genotypes to postharvest physiological deterioration (PPD) and to microbial deterioration (MD). Roots of six cassava genotypes were evaluated in two experiments, during storage under different environmental conditions: high temperature and low soil moisture; or low temperature and high soil moisture. Roots were treated or not with fungicide (carbendazim) before storage. Genotype reactions to MD and PPD were evaluated at 0, 2, 5, 10, 15, 20, and 30 days after harvest (DAH), in the proximal, medial, and distal parts of the roots. A diagrammatic scale was proposed to evaluate nonperipheral symptoms of PPD. Fungicide treatment and root position did not influence PPD expression; however, all factors had significant effect on MD severity. Genotypes differed as to their tolerance to PPD and MD. Both deterioration types were more pronounced during periods of higher humidity and lower temperatures. The fungicide treatment increased root shelf life by reducing MD severity up to 10 DAH. Whole roots showed low MD severity and high PPD expression up to 10 DAH, which enabled the assessment of PPD without significant interference of MD symptoms during this period.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015000700562	
Editor: 	Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira	
Relação: 	10.1590/S0100-204X2015000700006	
Formato: 	text/html	
Fonte: 	Pesquisa Agropecuária Brasileira  v.50 n.7 2015	
Fonte: 	info:eu-repo/semantics/openAccess