Use of SPAD index in elephant grass pre-breeding

Detalhes bibliográficos
Autor(a) principal: D’Oliveira, Pérsio Sandir
Data de Publicação: 2020
Outros Autores: Suzuki, Letícia Sayuri, Carneiro, Jailton da Costa, Machado, Juarez Campolina, Prates, Jader Forquim, Rocha, João Romero do Amaral Santos de Carvalho
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/33146
Resumo: The SPAD-502 (Soil Plant Analysis Development) chlorophyll meter is a simple diagnostic tool that instantly measures the chlorophyll content of plant leaves without damaging the leaf blade. This study aimed to evaluate the efficacy of the SPAD index as a tool for discriminating elephant grass acessions from different morphological groups. One hundred genotypes of the elephant grass Pennisetum purpureum from the Active Germplasm Bank at Embrapa Dairy Cattle, Minas Gerais, Brazil were evaluated. Following uniform cutting, six SPAD readings were taken from each accession every 60 days. Measurements were taken for two years. The experimental design was a 10 × 10 simple lattice with two replications. Joint deviance analysis for six SPAD measurements revealed great genetic variability between genotypes. SPAD values of Cameroon and Napier accessions were, on average, significantly different. The SPAD index was effective in detecting genetic variability between elephant grass acessions. However, it should not be used alone as a morphological descriptor, but in combination with other descriptors.
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spelling Use of SPAD index in elephant grass pre-breedingUso do índice SPAD em pré-melhoramento de capim elefanteChlorophyll meterCrop breedingPennisetum purpureum.ClorofilômetroMelhoramento vegetalPennisetum purpureum.The SPAD-502 (Soil Plant Analysis Development) chlorophyll meter is a simple diagnostic tool that instantly measures the chlorophyll content of plant leaves without damaging the leaf blade. This study aimed to evaluate the efficacy of the SPAD index as a tool for discriminating elephant grass acessions from different morphological groups. One hundred genotypes of the elephant grass Pennisetum purpureum from the Active Germplasm Bank at Embrapa Dairy Cattle, Minas Gerais, Brazil were evaluated. Following uniform cutting, six SPAD readings were taken from each accession every 60 days. Measurements were taken for two years. The experimental design was a 10 × 10 simple lattice with two replications. Joint deviance analysis for six SPAD measurements revealed great genetic variability between genotypes. SPAD values of Cameroon and Napier accessions were, on average, significantly different. The SPAD index was effective in detecting genetic variability between elephant grass acessions. However, it should not be used alone as a morphological descriptor, but in combination with other descriptors.O clorofilômetro SPAD-502 (Soil Plant Analysis Development) é usado na medição indireta do conteúdo de clorofila, e é caracterizado pela rapidez e simplicidade, especialmente por ser uma medição não destrutiva do limbo foliar. O objetivo desse trabalho foi avaliar o índice SPAD como ferramenta para identificar acessos de diferentes grupos morfológicos de capim-elefante. Foram avaliados 100 genótipos do Banco Ativo de Germoplasma de Capim-elefante da Embrapa Gado de Leite, Minas Gerais, Brasil. Após corte de uniformização, foram realizadas seis leituras por acesso, a cada 60 dias. As medidas foram realizadas durante dois anos. O delineamento experimental foi o látice simples (10 x 10) com duas repetições. Foi observado efeito de acessos pela análise conjunta de deviance das seis medidas do índice SPAD mostrando alta variabilidade genética entre os materiais. Os grupos ‘Cameroon’ e ‘Napier’ foram diferentes entre si para o índice SPAD, que se mostrou eficaz na detecção de variabilidade genética entre cultivares; contudo, deve ser usado juntamente com outros descritores e não exclusivamente como descritor morfológico.UEL2020-04-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionScientific NoteAvaliado por paresapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3314610.5433/1679-0359.2020v41n3p1047Semina: Ciências Agrárias; Vol. 41 No. 3 (2020); 1047-1052Semina: Ciências Agrárias; v. 41 n. 3 (2020); 1047-10521679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/33146/27119Copyright (c) 2020 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessD’Oliveira, Pérsio SandirSuzuki, Letícia SayuriCarneiro, Jailton da CostaMachado, Juarez CampolinaPrates, Jader ForquimRocha, João Romero do Amaral Santos de Carvalho2022-10-10T13:12:04Zoai:ojs.pkp.sfu.ca:article/33146Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-10T13:12:04Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Use of SPAD index in elephant grass pre-breeding
Uso do índice SPAD em pré-melhoramento de capim elefante
title Use of SPAD index in elephant grass pre-breeding
spellingShingle Use of SPAD index in elephant grass pre-breeding
D’Oliveira, Pérsio Sandir
Chlorophyll meter
Crop breeding
Pennisetum purpureum.
Clorofilômetro
Melhoramento vegetal
Pennisetum purpureum.
title_short Use of SPAD index in elephant grass pre-breeding
title_full Use of SPAD index in elephant grass pre-breeding
title_fullStr Use of SPAD index in elephant grass pre-breeding
title_full_unstemmed Use of SPAD index in elephant grass pre-breeding
title_sort Use of SPAD index in elephant grass pre-breeding
author D’Oliveira, Pérsio Sandir
author_facet D’Oliveira, Pérsio Sandir
Suzuki, Letícia Sayuri
Carneiro, Jailton da Costa
Machado, Juarez Campolina
Prates, Jader Forquim
Rocha, João Romero do Amaral Santos de Carvalho
author_role author
author2 Suzuki, Letícia Sayuri
Carneiro, Jailton da Costa
Machado, Juarez Campolina
Prates, Jader Forquim
Rocha, João Romero do Amaral Santos de Carvalho
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv D’Oliveira, Pérsio Sandir
Suzuki, Letícia Sayuri
Carneiro, Jailton da Costa
Machado, Juarez Campolina
Prates, Jader Forquim
Rocha, João Romero do Amaral Santos de Carvalho
dc.subject.por.fl_str_mv Chlorophyll meter
Crop breeding
Pennisetum purpureum.
Clorofilômetro
Melhoramento vegetal
Pennisetum purpureum.
topic Chlorophyll meter
Crop breeding
Pennisetum purpureum.
Clorofilômetro
Melhoramento vegetal
Pennisetum purpureum.
description The SPAD-502 (Soil Plant Analysis Development) chlorophyll meter is a simple diagnostic tool that instantly measures the chlorophyll content of plant leaves without damaging the leaf blade. This study aimed to evaluate the efficacy of the SPAD index as a tool for discriminating elephant grass acessions from different morphological groups. One hundred genotypes of the elephant grass Pennisetum purpureum from the Active Germplasm Bank at Embrapa Dairy Cattle, Minas Gerais, Brazil were evaluated. Following uniform cutting, six SPAD readings were taken from each accession every 60 days. Measurements were taken for two years. The experimental design was a 10 × 10 simple lattice with two replications. Joint deviance analysis for six SPAD measurements revealed great genetic variability between genotypes. SPAD values of Cameroon and Napier accessions were, on average, significantly different. The SPAD index was effective in detecting genetic variability between elephant grass acessions. However, it should not be used alone as a morphological descriptor, but in combination with other descriptors.
publishDate 2020
dc.date.none.fl_str_mv 2020-04-07
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Scientific Note
Avaliado por pares
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/33146
10.5433/1679-0359.2020v41n3p1047
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/33146
identifier_str_mv 10.5433/1679-0359.2020v41n3p1047
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/33146/27119
dc.rights.driver.fl_str_mv Copyright (c) 2020 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Semina: Ciências Agrárias
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 UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 41 No. 3 (2020); 1047-1052
Semina: Ciências Agrárias; v. 41 n. 3 (2020); 1047-1052
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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