Characterization of mechanical damage in coffee seeds by the LERCAFÉ test

Detalhes bibliográficos
Autor(a) principal: Zonta, João Batista
Data de Publicação: 2011
Outros Autores: Araújo, Eduardo Fontes, Araújo, Roberto Fontes, Zonta, Flávia Miranda Garcia, Reis, Múcio Silva
Tipo de documento: Artigo
Idioma: eng
Título da fonte: LOCUS Repositório Institucional da UFV
Texto Completo: http://dx.doi.org/10.4067/S0718-34292011000300005
http://www.locus.ufv.br/handle/123456789/11968
Resumo: The present work aimed at evaluating the use of the LERCAFÉ test to estimate germination and characterize mechanical damage in coffee seeds. The experiment was conducted in the Laboratory of Seed Research at the Universidade Federal de Viçosa, Viçosa-MG. Coffea arabica seeds were submitted to the following treatments: Lot 1 (0% of damaged seeds), Lot 2 (5% of damaged seeds), Lot 3 (10% of damaged seeds) and Lot 4 (15% of damaged seeds). The mechanical damage was caused with the use of the Pulverisette 14 (Fritsch) apparatus. The damage was caused randomly and individually in the seeds, and the lots proportionally combined undamaged and damaged seeds, totaling 1600 seeds per lot. The seeds were evaluated by the germination and LERCAFÉ tests. For this type of damage, the germination results achieved by the LERCAFÉ test presented high correlation with those achieved by the germination test (r=0,9550). Although being randomly caused in the seeds, in other words, without reaching a pre-determined region, the mechanical damage was always characterized by a breach in the embryo region and/or in the region opposite to the embryo and the edges of these breaches presented a green stain. The LERCAFÉ test was efficient to estimate germination and characterize mechanical damage in coffee seeds. Lots of seeds mechanically damaged presented a sharp decrease in the germination power.
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spelling Characterization of mechanical damage in coffee seeds by the LERCAFÉ testFast testSodium hypochloriteCoffea arabicaThe present work aimed at evaluating the use of the LERCAFÉ test to estimate germination and characterize mechanical damage in coffee seeds. The experiment was conducted in the Laboratory of Seed Research at the Universidade Federal de Viçosa, Viçosa-MG. Coffea arabica seeds were submitted to the following treatments: Lot 1 (0% of damaged seeds), Lot 2 (5% of damaged seeds), Lot 3 (10% of damaged seeds) and Lot 4 (15% of damaged seeds). The mechanical damage was caused with the use of the Pulverisette 14 (Fritsch) apparatus. The damage was caused randomly and individually in the seeds, and the lots proportionally combined undamaged and damaged seeds, totaling 1600 seeds per lot. The seeds were evaluated by the germination and LERCAFÉ tests. For this type of damage, the germination results achieved by the LERCAFÉ test presented high correlation with those achieved by the germination test (r=0,9550). Although being randomly caused in the seeds, in other words, without reaching a pre-determined region, the mechanical damage was always characterized by a breach in the embryo region and/or in the region opposite to the embryo and the edges of these breaches presented a green stain. The LERCAFÉ test was efficient to estimate germination and characterize mechanical damage in coffee seeds. Lots of seeds mechanically damaged presented a sharp decrease in the germination power.Objetivou-se neste trabalho avaliar a utilização do teste LERCAFÉ para estimar a germinação e caracterizar danos mecânicos em sementes de cafeeiro. O experimento foi conduzido no Laboratório de Pesquisa de Sementes da Universidade Federal de Viçosa, Viçosa-MG. Utilizaram-se sementes de cafeeiro arábica, submetidas aos seguintes tratamentos: Lote 1 (0% de sementes danificadas), Lote 2 (5% de sementes danificadas), Lote 3 (10% de sementes danificadas) e Lote 4 (15% de sementes danificadas). Os danos mecânicos foram provocados com uso de equipamento Pulverisette 14 (Fritsch). O dano foi causado individualmente nas sementes, ao acaso, e os lotes foram obtidos misturando-se proporcionalmente sementes sem dano com sementes danificadas, num total de 1600 sementes por lote. As sementes foram avaliadas pelos testes de germinação e LERCAFÉ. Para este tipo de dano, os resultados de germinação obtidos pelo teste LERCAFÉ apresentaram alta correlação com os obtidos pelo teste de germinação (r=0,9550). O dano mecânico, apesar de ter sido provocado ao acaso nas sementes, ou seja, sem atingir uma região prÉ-determinada, caracterizou-se sempre por uma fenda na região do embrião e/ou na região oposta ao embrião, aparecendo, nas bordas destas aberturas, uma mancha de coloração verde. O teste LERCAFÉ foi eficiente para estimar a germinação e caracterizar danos mecânicos em sementes de cafeeiro. Lotes de sementes danificadas mecanicamente apresentaram queda acentuada no poder germinativo.Idesia (Arica)2017-10-09T18:43:48Z2017-10-09T18:43:48Z2011-01-18info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlepdfapplication/pdf0718-3429http://dx.doi.org/10.4067/S0718-34292011000300005http://www.locus.ufv.br/handle/123456789/11968engv. 29, n.3 p. 33-38 set/ dez., 2011Zonta, João BatistaAraújo, Eduardo FontesAraújo, Roberto FontesZonta, Flávia Miranda GarciaReis, Múcio Silvainfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFV2024-07-12T08:46:41Zoai:locus.ufv.br:123456789/11968Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452024-07-12T08:46:41LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false
dc.title.none.fl_str_mv Characterization of mechanical damage in coffee seeds by the LERCAFÉ test
title Characterization of mechanical damage in coffee seeds by the LERCAFÉ test
spellingShingle Characterization of mechanical damage in coffee seeds by the LERCAFÉ test
Zonta, João Batista
Fast test
Sodium hypochlorite
Coffea arabica
title_short Characterization of mechanical damage in coffee seeds by the LERCAFÉ test
title_full Characterization of mechanical damage in coffee seeds by the LERCAFÉ test
title_fullStr Characterization of mechanical damage in coffee seeds by the LERCAFÉ test
title_full_unstemmed Characterization of mechanical damage in coffee seeds by the LERCAFÉ test
title_sort Characterization of mechanical damage in coffee seeds by the LERCAFÉ test
author Zonta, João Batista
author_facet Zonta, João Batista
Araújo, Eduardo Fontes
Araújo, Roberto Fontes
Zonta, Flávia Miranda Garcia
Reis, Múcio Silva
author_role author
author2 Araújo, Eduardo Fontes
Araújo, Roberto Fontes
Zonta, Flávia Miranda Garcia
Reis, Múcio Silva
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Zonta, João Batista
Araújo, Eduardo Fontes
Araújo, Roberto Fontes
Zonta, Flávia Miranda Garcia
Reis, Múcio Silva
dc.subject.por.fl_str_mv Fast test
Sodium hypochlorite
Coffea arabica
topic Fast test
Sodium hypochlorite
Coffea arabica
description The present work aimed at evaluating the use of the LERCAFÉ test to estimate germination and characterize mechanical damage in coffee seeds. The experiment was conducted in the Laboratory of Seed Research at the Universidade Federal de Viçosa, Viçosa-MG. Coffea arabica seeds were submitted to the following treatments: Lot 1 (0% of damaged seeds), Lot 2 (5% of damaged seeds), Lot 3 (10% of damaged seeds) and Lot 4 (15% of damaged seeds). The mechanical damage was caused with the use of the Pulverisette 14 (Fritsch) apparatus. The damage was caused randomly and individually in the seeds, and the lots proportionally combined undamaged and damaged seeds, totaling 1600 seeds per lot. The seeds were evaluated by the germination and LERCAFÉ tests. For this type of damage, the germination results achieved by the LERCAFÉ test presented high correlation with those achieved by the germination test (r=0,9550). Although being randomly caused in the seeds, in other words, without reaching a pre-determined region, the mechanical damage was always characterized by a breach in the embryo region and/or in the region opposite to the embryo and the edges of these breaches presented a green stain. The LERCAFÉ test was efficient to estimate germination and characterize mechanical damage in coffee seeds. Lots of seeds mechanically damaged presented a sharp decrease in the germination power.
publishDate 2011
dc.date.none.fl_str_mv 2011-01-18
2017-10-09T18:43:48Z
2017-10-09T18:43:48Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv 0718-3429
http://dx.doi.org/10.4067/S0718-34292011000300005
http://www.locus.ufv.br/handle/123456789/11968
identifier_str_mv 0718-3429
url http://dx.doi.org/10.4067/S0718-34292011000300005
http://www.locus.ufv.br/handle/123456789/11968
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv v. 29, n.3 p. 33-38 set/ dez., 2011
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv pdf
application/pdf
dc.publisher.none.fl_str_mv Idesia (Arica)
publisher.none.fl_str_mv Idesia (Arica)
dc.source.none.fl_str_mv reponame:LOCUS Repositório Institucional da UFV
instname:Universidade Federal de Viçosa (UFV)
instacron:UFV
instname_str Universidade Federal de Viçosa (UFV)
instacron_str UFV
institution UFV
reponame_str LOCUS Repositório Institucional da UFV
collection LOCUS Repositório Institucional da UFV
repository.name.fl_str_mv LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)
repository.mail.fl_str_mv fabiojreis@ufv.br
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