Quality of phytopathometric variables generated from a ranking scale for the CABMV-passionfruit pathosystem
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Agro@mbiente on-line |
Texto Completo: | https://revista.ufrr.br/agroambiente/article/view/4247 |
Resumo: | The Cowpea aphid-borne mosaic virus (CABMV) is one of the most important pathogenic agents in passionfruit culture, causing extensive loss throughout the national territory. Efficient quantification of disease symptoms is highly dependent on the methodology used, and is directly related to the quality of data generated for later manipulation and analysis. Thus, our objective was to evaluate different methods of using the data collected using a scale based on quality of the generated variables, using statistical parameters. Assumptions of additivity, homoscedasticity and normality of the errors in parametric analysis were tested. Experimental quality, for each phytopatometric variable (PV) was tested for calculated F (Fc), coefficient of determination (R²) and coefficient of variation (CV%). Four different PVs were generated through a ranking scale: AUDPC-III, AUDPC-GS, III and GS. All variables met the assumptions for analysis of variance, with AUDPC-III and III PVs having slightly higher values in terms of adherence to normality, and AUDPC-GS and GS PVs having slightly higher values in terms of significance for additivity and homoscedasticity. AUDPC-III and III had the highest calculated R² and F values, and the highest coefficients of variation. We recorded the inverse for AUDPC-GS and GS, with lower coefficients of variation and higher R² and F values. A lower correlation, though still significant, was observed between AUDPC-GS and AUDPC-III, while a higher correlation was recorded between III and GS. Overall the PVs III and AUDPC-III systems were the best for use in the analyzes of the studied pathosystem. |
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Quality of phytopathometric variables generated from a ranking scale for the CABMV-passionfruit pathosystemAACPD. Biometria. Passiflora.The Cowpea aphid-borne mosaic virus (CABMV) is one of the most important pathogenic agents in passionfruit culture, causing extensive loss throughout the national territory. Efficient quantification of disease symptoms is highly dependent on the methodology used, and is directly related to the quality of data generated for later manipulation and analysis. Thus, our objective was to evaluate different methods of using the data collected using a scale based on quality of the generated variables, using statistical parameters. Assumptions of additivity, homoscedasticity and normality of the errors in parametric analysis were tested. Experimental quality, for each phytopatometric variable (PV) was tested for calculated F (Fc), coefficient of determination (R²) and coefficient of variation (CV%). Four different PVs were generated through a ranking scale: AUDPC-III, AUDPC-GS, III and GS. All variables met the assumptions for analysis of variance, with AUDPC-III and III PVs having slightly higher values in terms of adherence to normality, and AUDPC-GS and GS PVs having slightly higher values in terms of significance for additivity and homoscedasticity. AUDPC-III and III had the highest calculated R² and F values, and the highest coefficients of variation. We recorded the inverse for AUDPC-GS and GS, with lower coefficients of variation and higher R² and F values. A lower correlation, though still significant, was observed between AUDPC-GS and AUDPC-III, while a higher correlation was recorded between III and GS. Overall the PVs III and AUDPC-III systems were the best for use in the analyzes of the studied pathosystem.UFRR2017-12-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revista.ufrr.br/agroambiente/article/view/424710.18227/1982-8470ragro.v12i1.4247AGRO@MBIENTE ON-LINE JOURNALRAGR; Vol. 12 No. 1 (2018): JANEIRO - MARÇO; 58-67REVISTA AGRO@MBIENTE ON-LINE; Vol. 12 Núm. 1 (2018): JANEIRO - MARÇO; 58-67REVISTA AGRO@MBIENTE ON-LINE; v. 12 n. 1 (2018): JANEIRO - MARÇO; 58-671982-8470reponame:Agro@mbiente on-lineinstname:Universidade Federal de Roraima (UFRR)instacron:UFRRporhttps://revista.ufrr.br/agroambiente/article/view/4247/2389Copyright (c) 2017 REVISTA AGRO@MBIENTE ON-LINEinfo:eu-repo/semantics/openAccessMota Porto, Antonio CarlosLima Santos, Mariana deOliveira, Antonio Carlos2018-05-05T08:59:58Zoai:oai.revista.ufrr.br:article/4247Revistahttps://revista.ufrr.br/index.php/agroambientePUBhttps://revista.ufrr.br/index.php/agroambiente/oai||scpuchoa@dsi.ufrr.br|| arcanjoalves@oi.com.br1982-84701982-8470opendoar:2018-05-05T08:59:58Agro@mbiente on-line - Universidade Federal de Roraima (UFRR)false |
dc.title.none.fl_str_mv |
Quality of phytopathometric variables generated from a ranking scale for the CABMV-passionfruit pathosystem |
title |
Quality of phytopathometric variables generated from a ranking scale for the CABMV-passionfruit pathosystem |
spellingShingle |
Quality of phytopathometric variables generated from a ranking scale for the CABMV-passionfruit pathosystem Mota Porto, Antonio Carlos AACPD. Biometria. Passiflora. |
title_short |
Quality of phytopathometric variables generated from a ranking scale for the CABMV-passionfruit pathosystem |
title_full |
Quality of phytopathometric variables generated from a ranking scale for the CABMV-passionfruit pathosystem |
title_fullStr |
Quality of phytopathometric variables generated from a ranking scale for the CABMV-passionfruit pathosystem |
title_full_unstemmed |
Quality of phytopathometric variables generated from a ranking scale for the CABMV-passionfruit pathosystem |
title_sort |
Quality of phytopathometric variables generated from a ranking scale for the CABMV-passionfruit pathosystem |
author |
Mota Porto, Antonio Carlos |
author_facet |
Mota Porto, Antonio Carlos Lima Santos, Mariana de Oliveira, Antonio Carlos |
author_role |
author |
author2 |
Lima Santos, Mariana de Oliveira, Antonio Carlos |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Mota Porto, Antonio Carlos Lima Santos, Mariana de Oliveira, Antonio Carlos |
dc.subject.por.fl_str_mv |
AACPD. Biometria. Passiflora. |
topic |
AACPD. Biometria. Passiflora. |
description |
The Cowpea aphid-borne mosaic virus (CABMV) is one of the most important pathogenic agents in passionfruit culture, causing extensive loss throughout the national territory. Efficient quantification of disease symptoms is highly dependent on the methodology used, and is directly related to the quality of data generated for later manipulation and analysis. Thus, our objective was to evaluate different methods of using the data collected using a scale based on quality of the generated variables, using statistical parameters. Assumptions of additivity, homoscedasticity and normality of the errors in parametric analysis were tested. Experimental quality, for each phytopatometric variable (PV) was tested for calculated F (Fc), coefficient of determination (R²) and coefficient of variation (CV%). Four different PVs were generated through a ranking scale: AUDPC-III, AUDPC-GS, III and GS. All variables met the assumptions for analysis of variance, with AUDPC-III and III PVs having slightly higher values in terms of adherence to normality, and AUDPC-GS and GS PVs having slightly higher values in terms of significance for additivity and homoscedasticity. AUDPC-III and III had the highest calculated R² and F values, and the highest coefficients of variation. We recorded the inverse for AUDPC-GS and GS, with lower coefficients of variation and higher R² and F values. A lower correlation, though still significant, was observed between AUDPC-GS and AUDPC-III, while a higher correlation was recorded between III and GS. Overall the PVs III and AUDPC-III systems were the best for use in the analyzes of the studied pathosystem. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-12-23 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revista.ufrr.br/agroambiente/article/view/4247 10.18227/1982-8470ragro.v12i1.4247 |
url |
https://revista.ufrr.br/agroambiente/article/view/4247 |
identifier_str_mv |
10.18227/1982-8470ragro.v12i1.4247 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://revista.ufrr.br/agroambiente/article/view/4247/2389 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2017 REVISTA AGRO@MBIENTE ON-LINE info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2017 REVISTA AGRO@MBIENTE ON-LINE |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UFRR |
publisher.none.fl_str_mv |
UFRR |
dc.source.none.fl_str_mv |
AGRO@MBIENTE ON-LINE JOURNALRAGR; Vol. 12 No. 1 (2018): JANEIRO - MARÇO; 58-67 REVISTA AGRO@MBIENTE ON-LINE; Vol. 12 Núm. 1 (2018): JANEIRO - MARÇO; 58-67 REVISTA AGRO@MBIENTE ON-LINE; v. 12 n. 1 (2018): JANEIRO - MARÇO; 58-67 1982-8470 reponame:Agro@mbiente on-line instname:Universidade Federal de Roraima (UFRR) instacron:UFRR |
instname_str |
Universidade Federal de Roraima (UFRR) |
instacron_str |
UFRR |
institution |
UFRR |
reponame_str |
Agro@mbiente on-line |
collection |
Agro@mbiente on-line |
repository.name.fl_str_mv |
Agro@mbiente on-line - Universidade Federal de Roraima (UFRR) |
repository.mail.fl_str_mv |
||scpuchoa@dsi.ufrr.br|| arcanjoalves@oi.com.br |
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1799770041414057984 |