Evaluation of the coffee seeds viability by exudates
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2395 |
Resumo: | A quick evaluation of the germination quality of the seeds is very important for coffee growers. The aim of this research was to estimate the correlation coefficient between the germination and the liberation of brown exudates of coffee seeds with different times after preparation. Petri dishes and humid filter were used to place the seeds. The seeds were obtained from lots of seeds with several aging degrees. The experimental design used was in randomized blocks with seven replications and plots constituted by 10 seeds. High negative correlations (P=0.01) were obtained between the germination and germinative vigour with the liberation of brown exudates at different times. The variance analyses indicated significant differences to germination among seeds of different aging degrees at different evaluation times. The advantage of this technique is to evaluate the germinative quality in six or twelve hours, without the use of specialized labour and expensive equipments. |
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Semina. Ciências Agrárias (Online) |
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Evaluation of the coffee seeds viability by exudatesAvaliação da viabilidade de sementes de café por exsudatosCoffee seedsGermination of coffeeCoffee crop.Sementes de caféGerminaçãoViabilidade.A quick evaluation of the germination quality of the seeds is very important for coffee growers. The aim of this research was to estimate the correlation coefficient between the germination and the liberation of brown exudates of coffee seeds with different times after preparation. Petri dishes and humid filter were used to place the seeds. The seeds were obtained from lots of seeds with several aging degrees. The experimental design used was in randomized blocks with seven replications and plots constituted by 10 seeds. High negative correlations (P=0.01) were obtained between the germination and germinative vigour with the liberation of brown exudates at different times. The variance analyses indicated significant differences to germination among seeds of different aging degrees at different evaluation times. The advantage of this technique is to evaluate the germinative quality in six or twelve hours, without the use of specialized labour and expensive equipments.Existe uma grande necessidade de testes que possibilitem uma avaliação rápida e segura da qualidade das sementes. O objetivo deste trabalho foi estimar o coeficiente de correlação existente entre a germinação de sementes de café e a liberação de exsudato marrom. Utilizaram-se placas de Petri e papel-toalha umedecido onde foram colocadas as sementes. Os materiais foram obtidos de lotes de sementes com vários níveis de envelhecimento. Foi utilizado o delineamento em blocos ao acaso com 7 repetições e parcelas constituídas de 10 sementes. Obtiveram-se correlações negativas altas e significativas a 1% entre a germinação e vigor germinativo com a liberação de exsudato marrom. As análises de variância indicaram diferenças significativas na germinação entre sementes de diferentes graus de envelhecimento em relação aos exsudatos marrons. A vantagem desta técnica é avaliar o poder germinativo em poucas horas, sem o uso de mão-de-obra especializada e equipamentos caros.UEL2006-06-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/239510.5433/1679-0359.2006v27n1p21Semina: Ciências Agrárias; Vol. 27 No. 1 (2006); 21-26Semina: Ciências Agrárias; v. 27 n. 1 (2006); 21-261679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2395/2050Sera, Gustavo HiroshiMiglioranza, ÉdisonSera, Tumoruinfo:eu-repo/semantics/openAccess2010-03-15T16:54:06Zoai:ojs.pkp.sfu.ca:article/2395Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2010-03-15T16:54:06Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Evaluation of the coffee seeds viability by exudates Avaliação da viabilidade de sementes de café por exsudatos |
title |
Evaluation of the coffee seeds viability by exudates |
spellingShingle |
Evaluation of the coffee seeds viability by exudates Sera, Gustavo Hiroshi Coffee seeds Germination of coffee Coffee crop. Sementes de café Germinação Viabilidade. |
title_short |
Evaluation of the coffee seeds viability by exudates |
title_full |
Evaluation of the coffee seeds viability by exudates |
title_fullStr |
Evaluation of the coffee seeds viability by exudates |
title_full_unstemmed |
Evaluation of the coffee seeds viability by exudates |
title_sort |
Evaluation of the coffee seeds viability by exudates |
author |
Sera, Gustavo Hiroshi |
author_facet |
Sera, Gustavo Hiroshi Miglioranza, Édison Sera, Tumoru |
author_role |
author |
author2 |
Miglioranza, Édison Sera, Tumoru |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Sera, Gustavo Hiroshi Miglioranza, Édison Sera, Tumoru |
dc.subject.por.fl_str_mv |
Coffee seeds Germination of coffee Coffee crop. Sementes de café Germinação Viabilidade. |
topic |
Coffee seeds Germination of coffee Coffee crop. Sementes de café Germinação Viabilidade. |
description |
A quick evaluation of the germination quality of the seeds is very important for coffee growers. The aim of this research was to estimate the correlation coefficient between the germination and the liberation of brown exudates of coffee seeds with different times after preparation. Petri dishes and humid filter were used to place the seeds. The seeds were obtained from lots of seeds with several aging degrees. The experimental design used was in randomized blocks with seven replications and plots constituted by 10 seeds. High negative correlations (P=0.01) were obtained between the germination and germinative vigour with the liberation of brown exudates at different times. The variance analyses indicated significant differences to germination among seeds of different aging degrees at different evaluation times. The advantage of this technique is to evaluate the germinative quality in six or twelve hours, without the use of specialized labour and expensive equipments. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-06-30 |
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://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2395 10.5433/1679-0359.2006v27n1p21 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2395 |
identifier_str_mv |
10.5433/1679-0359.2006v27n1p21 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2395/2050 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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. 27 No. 1 (2006); 21-26 Semina: Ciências Agrárias; v. 27 n. 1 (2006); 21-26 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 |
_version_ |
1799306058025402368 |