Data/hora: 19/06/2024 14:40:21

Biblioteca(s): | Embrapa Unidades Centrais.
Data corrente: | 31/08/2015
Data da última atualização: | 25/05/2017
Autoria: | VENTURINI, M. T.; SANTOS, V. da S.; OLIVEIRA, E. J. de.
Afiliação: | MARCELA TONINI VENTURINI, Universidade Federal do Recôncavo da Bahia; VANDERLEI DA SILVA SANTOS, CNPMF; EDER JORGE DE OLIVEIRA, CNPMF.
Título: | Procedures for evaluating the tolerance of cassava genotypes to postharvest physiological deterioration.
Ano de publicação: | 2015
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 50, n. 7, p. 562-570, jul. 2015.
Idioma: | Inglês
Notas: | Título em português: Procedimentos para avaliar a tolerância de genótipos de mandioca  à deterioração fisiológica pós?colheita.
Conteúdo: | 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.
Palavras-Chave: | Condições de armazenamento; Deterioração microbiana; Padronização de procedimentos; Tiragem de genótipos.
Thesagro: | Manihot esculenta; Vida de Prateleira.
Thesaurus Nal: | Shelf life; Storage conditions.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/128828/1/Procedures-for-evaluating.pdf
Registro original: | Embrapa Unidades Centrais (AI-SEDE)
Exemplares: | AI-SEDE - (58131-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS