Development of a diagrammatic scale for the evaluation of postharvest physiological deterioration in cassava roots.
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1027332 |
Resumo: | The objective of this work was to develop a scale to assess the severity of postharvest physiological deterioration (PPD) of cassava roots, and to validate this scale for accuracy and reproducibility estimates. A diagrammatic scale (0 to 100%) for the damaged roots was analyzed according to precision, accuracy, and reproducibility. Seven evaluators (four with experience and three without it) quantified the PPD severity, with or without the scale, considering 150 roots with different levels of PPD. Without and with the use of the scale, respectively, the inexperienced evaluators obtained coefficients of determination (R2) from 0.76 to 0.86 and 0.87 to 0.92, and the experienced evaluators obtained R2 from 0.90 to 0.96 and 0.96 to 0.97. The values of the intercept (a) obtained by both the experienced and inexperienced evaluators who did not use the scale were all significant, while after using the scale, only two evaluators got values that were not significantly different from one. Evaluation reproducibility between the evaluators ranged from 0.61 to 0.91 for the inexperienced ones and from 0.83 to 0.95 for the experienced ones. The proposed diagrammatic scale was considered appropriate to estimate the severity of PPD in cassava roots, and can be used to identify sources of tolerance to postharvest deterioration. |
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Development of a diagrammatic scale for the evaluation of postharvest physiological deterioration in cassava roots.Physiological processesSubsistence cropToleranceMandiocaShelf lifeCassavaThe objective of this work was to develop a scale to assess the severity of postharvest physiological deterioration (PPD) of cassava roots, and to validate this scale for accuracy and reproducibility estimates. A diagrammatic scale (0 to 100%) for the damaged roots was analyzed according to precision, accuracy, and reproducibility. Seven evaluators (four with experience and three without it) quantified the PPD severity, with or without the scale, considering 150 roots with different levels of PPD. Without and with the use of the scale, respectively, the inexperienced evaluators obtained coefficients of determination (R2) from 0.76 to 0.86 and 0.87 to 0.92, and the experienced evaluators obtained R2 from 0.90 to 0.96 and 0.96 to 0.97. The values of the intercept (a) obtained by both the experienced and inexperienced evaluators who did not use the scale were all significant, while after using the scale, only two evaluators got values that were not significantly different from one. Evaluation reproducibility between the evaluators ranged from 0.61 to 0.91 for the inexperienced ones and from 0.83 to 0.95 for the experienced ones. The proposed diagrammatic scale was considered appropriate to estimate the severity of PPD in cassava roots, and can be used to identify sources of tolerance to postharvest deterioration.MARCELA TONINI VENTURINI, Universidade Federal do Recôncavo da Bahia; LEANDRO RIBEIRO DOS SANTOS, Universidade Federal do Recôncavo da Bahia; EDER JORGE DE OLIVEIRA, CNPMF.VENTURINI, M. T.SANTOS, L. R. dosOLIVEIRA, E. J. de2015-10-27T11:11:11Z2015-10-27T11:11:11Z2015-10-2720152016-03-09T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlePesquisa Agropecuária Brasileira, Brasília, DF., v.50, n.8, p.658-668, ago. 2015.0100-204Xhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/102733210.1590/S0100-204X2015000800004enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-16T03:02:42Zoai:www.alice.cnptia.embrapa.br:doc/1027332Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-16T03:02:42falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-16T03:02:42Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Development of a diagrammatic scale for the evaluation of postharvest physiological deterioration in cassava roots. |
title |
Development of a diagrammatic scale for the evaluation of postharvest physiological deterioration in cassava roots. |
spellingShingle |
Development of a diagrammatic scale for the evaluation of postharvest physiological deterioration in cassava roots. VENTURINI, M. T. Physiological processes Subsistence crop Tolerance Mandioca Shelf life Cassava |
title_short |
Development of a diagrammatic scale for the evaluation of postharvest physiological deterioration in cassava roots. |
title_full |
Development of a diagrammatic scale for the evaluation of postharvest physiological deterioration in cassava roots. |
title_fullStr |
Development of a diagrammatic scale for the evaluation of postharvest physiological deterioration in cassava roots. |
title_full_unstemmed |
Development of a diagrammatic scale for the evaluation of postharvest physiological deterioration in cassava roots. |
title_sort |
Development of a diagrammatic scale for the evaluation of postharvest physiological deterioration in cassava roots. |
author |
VENTURINI, M. T. |
author_facet |
VENTURINI, M. T. SANTOS, L. R. dos OLIVEIRA, E. J. de |
author_role |
author |
author2 |
SANTOS, L. R. dos OLIVEIRA, E. J. de |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
MARCELA TONINI VENTURINI, Universidade Federal do Recôncavo da Bahia; LEANDRO RIBEIRO DOS SANTOS, Universidade Federal do Recôncavo da Bahia; EDER JORGE DE OLIVEIRA, CNPMF. |
dc.contributor.author.fl_str_mv |
VENTURINI, M. T. SANTOS, L. R. dos OLIVEIRA, E. J. de |
dc.subject.por.fl_str_mv |
Physiological processes Subsistence crop Tolerance Mandioca Shelf life Cassava |
topic |
Physiological processes Subsistence crop Tolerance Mandioca Shelf life Cassava |
description |
The objective of this work was to develop a scale to assess the severity of postharvest physiological deterioration (PPD) of cassava roots, and to validate this scale for accuracy and reproducibility estimates. A diagrammatic scale (0 to 100%) for the damaged roots was analyzed according to precision, accuracy, and reproducibility. Seven evaluators (four with experience and three without it) quantified the PPD severity, with or without the scale, considering 150 roots with different levels of PPD. Without and with the use of the scale, respectively, the inexperienced evaluators obtained coefficients of determination (R2) from 0.76 to 0.86 and 0.87 to 0.92, and the experienced evaluators obtained R2 from 0.90 to 0.96 and 0.96 to 0.97. The values of the intercept (a) obtained by both the experienced and inexperienced evaluators who did not use the scale were all significant, while after using the scale, only two evaluators got values that were not significantly different from one. Evaluation reproducibility between the evaluators ranged from 0.61 to 0.91 for the inexperienced ones and from 0.83 to 0.95 for the experienced ones. The proposed diagrammatic scale was considered appropriate to estimate the severity of PPD in cassava roots, and can be used to identify sources of tolerance to postharvest deterioration. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-10-27T11:11:11Z 2015-10-27T11:11:11Z 2015-10-27 2015 2016-03-09T11:11:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Pesquisa Agropecuária Brasileira, Brasília, DF., v.50, n.8, p.658-668, ago. 2015. 0100-204X http://www.alice.cnptia.embrapa.br/alice/handle/doc/1027332 10.1590/S0100-204X2015000800004 |
identifier_str_mv |
Pesquisa Agropecuária Brasileira, Brasília, DF., v.50, n.8, p.658-668, ago. 2015. 0100-204X 10.1590/S0100-204X2015000800004 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1027332 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503413318287360 |