Morphological and physiological changes during maturation of okra seeds evaluated through image analysis

Detalhes bibliográficos
Autor(a) principal: Santos, Rayssa Fernanda dos
Data de Publicação: 2020
Outros Autores: Gomes-Junior, Francisco Guilhien, Marcos-Filho, Julio
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: https://www.revistas.usp.br/sa/article/view/180741
Resumo: This study was performed to associate specific morphological parameters, defined by X-ray images, with seed performance of okra (Abelmoschus esculentus (L.) Moench) during maturation. Fruits of cultivar Santa Cruz 47 at different developmental stages were collected at five-day intervals (from 5 to 65 days after anthesis) and water content, dry matter, germination and vigor were determined in seeds extracted immediately after each harvest or after temporary storage for seven days. X-ray tests were also performed after each harvest and the images were analyzed by ImageJ® software to produce data of aspect ratio (relation between major and minor axes of the ellipse surrounding the seed perimeter) and percentage of free space area in the inner seed cavity. Physiological maturity (maximum accumulation of dry matter) was reached at 30 days after anthesis (DAA), when seed water content was 56.6 %. Seed germination and vigor increased during maturation, achieving the maximum at 50 DAA. Seeds showed morphological changes during maturation, becoming more spherical (aspect ratio near 1.0); at the same time, the free space available in the inner cavity of the seed decreased. This parameter can be successfully used as a marker of physiological maturity when values equal or lower than 5 % are reached.
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spelling Morphological and physiological changes during maturation of okra seeds evaluated through image analysisphysiological potential RGBaspect ratiofree spaceseed maturityThis study was performed to associate specific morphological parameters, defined by X-ray images, with seed performance of okra (Abelmoschus esculentus (L.) Moench) during maturation. Fruits of cultivar Santa Cruz 47 at different developmental stages were collected at five-day intervals (from 5 to 65 days after anthesis) and water content, dry matter, germination and vigor were determined in seeds extracted immediately after each harvest or after temporary storage for seven days. X-ray tests were also performed after each harvest and the images were analyzed by ImageJ® software to produce data of aspect ratio (relation between major and minor axes of the ellipse surrounding the seed perimeter) and percentage of free space area in the inner seed cavity. Physiological maturity (maximum accumulation of dry matter) was reached at 30 days after anthesis (DAA), when seed water content was 56.6 %. Seed germination and vigor increased during maturation, achieving the maximum at 50 DAA. Seeds showed morphological changes during maturation, becoming more spherical (aspect ratio near 1.0); at the same time, the free space available in the inner cavity of the seed decreased. This parameter can be successfully used as a marker of physiological maturity when values equal or lower than 5 % are reached.Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz2020-12-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/sa/article/view/18074110.1590/1678-992X-2018-0297Scientia Agricola; v. 77 n. 3 (2020); e20180297Scientia Agricola; Vol. 77 Núm. 3 (2020); e20180297Scientia Agricola; Vol. 77 No. 3 (2020); e201802971678-992X0103-9016reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/sa/article/view/180741/167826Copyright (c) 2020 Scientia Agricolahttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessSantos, Rayssa Fernanda dosGomes-Junior, Francisco Guilhien Marcos-Filho, Julio 2021-03-03T17:13:47Zoai:revistas.usp.br:article/180741Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2021-03-03T17:13:47Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Morphological and physiological changes during maturation of okra seeds evaluated through image analysis
title Morphological and physiological changes during maturation of okra seeds evaluated through image analysis
spellingShingle Morphological and physiological changes during maturation of okra seeds evaluated through image analysis
Santos, Rayssa Fernanda dos
physiological potential RGB
aspect ratio
free space
seed maturity
title_short Morphological and physiological changes during maturation of okra seeds evaluated through image analysis
title_full Morphological and physiological changes during maturation of okra seeds evaluated through image analysis
title_fullStr Morphological and physiological changes during maturation of okra seeds evaluated through image analysis
title_full_unstemmed Morphological and physiological changes during maturation of okra seeds evaluated through image analysis
title_sort Morphological and physiological changes during maturation of okra seeds evaluated through image analysis
author Santos, Rayssa Fernanda dos
author_facet Santos, Rayssa Fernanda dos
Gomes-Junior, Francisco Guilhien
Marcos-Filho, Julio
author_role author
author2 Gomes-Junior, Francisco Guilhien
Marcos-Filho, Julio
author2_role author
author
dc.contributor.author.fl_str_mv Santos, Rayssa Fernanda dos
Gomes-Junior, Francisco Guilhien
Marcos-Filho, Julio
dc.subject.por.fl_str_mv physiological potential RGB
aspect ratio
free space
seed maturity
topic physiological potential RGB
aspect ratio
free space
seed maturity
description This study was performed to associate specific morphological parameters, defined by X-ray images, with seed performance of okra (Abelmoschus esculentus (L.) Moench) during maturation. Fruits of cultivar Santa Cruz 47 at different developmental stages were collected at five-day intervals (from 5 to 65 days after anthesis) and water content, dry matter, germination and vigor were determined in seeds extracted immediately after each harvest or after temporary storage for seven days. X-ray tests were also performed after each harvest and the images were analyzed by ImageJ® software to produce data of aspect ratio (relation between major and minor axes of the ellipse surrounding the seed perimeter) and percentage of free space area in the inner seed cavity. Physiological maturity (maximum accumulation of dry matter) was reached at 30 days after anthesis (DAA), when seed water content was 56.6 %. Seed germination and vigor increased during maturation, achieving the maximum at 50 DAA. Seeds showed morphological changes during maturation, becoming more spherical (aspect ratio near 1.0); at the same time, the free space available in the inner cavity of the seed decreased. This parameter can be successfully used as a marker of physiological maturity when values equal or lower than 5 % are reached.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-06
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://www.revistas.usp.br/sa/article/view/180741
10.1590/1678-992X-2018-0297
url https://www.revistas.usp.br/sa/article/view/180741
identifier_str_mv 10.1590/1678-992X-2018-0297
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.revistas.usp.br/sa/article/view/180741/167826
dc.rights.driver.fl_str_mv Copyright (c) 2020 Scientia Agricola
http://creativecommons.org/licenses/by-nc/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Scientia Agricola
http://creativecommons.org/licenses/by-nc/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz
publisher.none.fl_str_mv Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz
dc.source.none.fl_str_mv Scientia Agricola; v. 77 n. 3 (2020); e20180297
Scientia Agricola; Vol. 77 Núm. 3 (2020); e20180297
Scientia Agricola; Vol. 77 No. 3 (2020); e20180297
1678-992X
0103-9016
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
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