Procedures for evaluating the tolerance of cassava genotypes to postharvest physiological deterioration
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 environmen...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Embrapa Informação Tecnológica
2015-07-01
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| Series: | Pesquisa Agropecuária Brasileira |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015000700562&lng=en&tlng=en |
| _version_ | 1819052357878546432 |
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| author | Marcela Tonini Venturini Vanderlei da Silva Santos Eder Jorge de Oliveira |
| author_facet | Marcela Tonini Venturini Vanderlei da Silva Santos Eder Jorge de Oliveira |
| author_sort | Marcela Tonini Venturini |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-21T12:18:33Z |
| format | Article |
| id | doaj.art-9590904b72bc4e62b89c377540689721 |
| institution | Directory Open Access Journal |
| issn | 1678-3921 |
| language | English |
| last_indexed | 2024-12-21T12:18:33Z |
| publishDate | 2015-07-01 |
| publisher | Embrapa Informação Tecnológica |
| record_format | Article |
| series | Pesquisa Agropecuária Brasileira |
| spelling | doaj.art-9590904b72bc4e62b89c3775406897212022-12-21T19:04:22ZengEmbrapa Informação TecnológicaPesquisa Agropecuária Brasileira1678-39212015-07-0150756257010.1590/S0100-204X2015000700006S0100-204X2015000700562Procedures for evaluating the tolerance of cassava genotypes to postharvest physiological deteriorationMarcela Tonini VenturiniVanderlei da Silva SantosEder Jorge de OliveiraAbstract: 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015000700562&lng=en&tlng=enManihot esculentatriagem de genótiposdeterioração microbianapadronização de procedimentosvida de prateleiracondições de armazenamento |
| spellingShingle | Marcela Tonini Venturini Vanderlei da Silva Santos Eder Jorge de Oliveira Procedures for evaluating the tolerance of cassava genotypes to postharvest physiological deterioration Pesquisa Agropecuária Brasileira Manihot esculenta triagem de genótipos deterioração microbiana padronização de procedimentos vida de prateleira condições de armazenamento |
| title | Procedures for evaluating the tolerance of cassava genotypes to postharvest physiological deterioration |
| title_full | Procedures for evaluating the tolerance of cassava genotypes to postharvest physiological deterioration |
| title_fullStr | Procedures for evaluating the tolerance of cassava genotypes to postharvest physiological deterioration |
| title_full_unstemmed | Procedures for evaluating the tolerance of cassava genotypes to postharvest physiological deterioration |
| title_short | Procedures for evaluating the tolerance of cassava genotypes to postharvest physiological deterioration |
| title_sort | procedures for evaluating the tolerance of cassava genotypes to postharvest physiological deterioration |
| topic | Manihot esculenta triagem de genótipos deterioração microbiana padronização de procedimentos vida de prateleira condições de armazenamento |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015000700562&lng=en&tlng=en |
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