Growth and development of guaraná seedlings

Detalhes bibliográficos
Autor(a) principal: Escobar, José Ricardo
Data de Publicação: 2014
Outros Autores: Corrêa, Maria Pinheiro Fernandes, Barreto, João Ferdinando, Dantas, José Carlos Rocha
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/14775
Resumo: Through observations in more than 1.500 guaraná (Paullinia cupana HPK) seedlings in two locations and in absence of interplant light competition and good nursery management the emergence occurs in periods of 70 days or more, causing significant differences of age between seedlings. It was also observed that the seed germination is independent of the harvest period. The rue of leave production was approximately of three leaves every three months. Composite leaves were produced after the apparition of the sixth or seventh simple leave. The acclimation process under sunlight conditions, at the age of eight to ten months affected the growth of foliar area, reducing the relative foliar growth rate. A recuperation of the foliar growth rate was observed at the age of twelve months when the seedlings showed approximately nine leaves.
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spelling Growth and development of guaraná seedlingsDesenvolvimento e crescimento de mudas de guaranáPaullinia cupana; biomass; leave production; leaf areaPaullinia cupana; biomassa; emissão foliar; área foliarThrough observations in more than 1.500 guaraná (Paullinia cupana HPK) seedlings in two locations and in absence of interplant light competition and good nursery management the emergence occurs in periods of 70 days or more, causing significant differences of age between seedlings. It was also observed that the seed germination is independent of the harvest period. The rue of leave production was approximately of three leaves every three months. Composite leaves were produced after the apparition of the sixth or seventh simple leave. The acclimation process under sunlight conditions, at the age of eight to ten months affected the growth of foliar area, reducing the relative foliar growth rate. A recuperation of the foliar growth rate was observed at the age of twelve months when the seedlings showed approximately nine leaves.Através da avaliação de mais de 1.500 mudas de guaraná (Paullinia cupana HBK) em duas localidades, na ausência de competição por luz entre plantas e com bom manejo de viveiro, constatou--se que a emergência ocorreu em período de 70 dias ou mais, provocando diferenças significativas de idade entre mudas. Observou-se também que o período de emergência é independente do período de colheita da semente. A taxa de emissão foliar situou-se em torno de três folhas a cada três meses, e a emissão de folhas compostas ocorreu, na maioria dos casos, após o lançamento da sexta ou sétima folha simples. O processo de aclimatação a céu aberto, à idade de oito a dez meses, afetou o crescimento da área foliar reduzindo a taxa de crescimento relativo. A recuperação da taxa de crescimento foliar ocorreu à idade de doze meses, quando as mudas apresentaram em torno de nove folhas.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraEscobar, José RicardoCorrêa, Maria Pinheiro FernandesBarreto, João FerdinandoDantas, José Carlos Rocha2014-04-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/14775Pesquisa Agropecuaria Brasileira; v.21, n.4, abr. 1986; 399-408Pesquisa Agropecuária Brasileira; v.21, n.4, abr. 1986; 399-4081678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/14775/8457info:eu-repo/semantics/openAccess2014-10-21T18:53:41Zoai:ojs.seer.sct.embrapa.br:article/14775Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-10-21T18:53:41Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Growth and development of guaraná seedlings
Desenvolvimento e crescimento de mudas de guaraná
title Growth and development of guaraná seedlings
spellingShingle Growth and development of guaraná seedlings
Escobar, José Ricardo
Paullinia cupana; biomass; leave production; leaf area
Paullinia cupana; biomassa; emissão foliar; área foliar
title_short Growth and development of guaraná seedlings
title_full Growth and development of guaraná seedlings
title_fullStr Growth and development of guaraná seedlings
title_full_unstemmed Growth and development of guaraná seedlings
title_sort Growth and development of guaraná seedlings
author Escobar, José Ricardo
author_facet Escobar, José Ricardo
Corrêa, Maria Pinheiro Fernandes
Barreto, João Ferdinando
Dantas, José Carlos Rocha
author_role author
author2 Corrêa, Maria Pinheiro Fernandes
Barreto, João Ferdinando
Dantas, José Carlos Rocha
author2_role author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Escobar, José Ricardo
Corrêa, Maria Pinheiro Fernandes
Barreto, João Ferdinando
Dantas, José Carlos Rocha
dc.subject.por.fl_str_mv Paullinia cupana; biomass; leave production; leaf area
Paullinia cupana; biomassa; emissão foliar; área foliar
topic Paullinia cupana; biomass; leave production; leaf area
Paullinia cupana; biomassa; emissão foliar; área foliar
description Through observations in more than 1.500 guaraná (Paullinia cupana HPK) seedlings in two locations and in absence of interplant light competition and good nursery management the emergence occurs in periods of 70 days or more, causing significant differences of age between seedlings. It was also observed that the seed germination is independent of the harvest period. The rue of leave production was approximately of three leaves every three months. Composite leaves were produced after the apparition of the sixth or seventh simple leave. The acclimation process under sunlight conditions, at the age of eight to ten months affected the growth of foliar area, reducing the relative foliar growth rate. A recuperation of the foliar growth rate was observed at the age of twelve months when the seedlings showed approximately nine leaves.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-17
dc.type.none.fl_str_mv
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://seer.sct.embrapa.br/index.php/pab/article/view/14775
url https://seer.sct.embrapa.br/index.php/pab/article/view/14775
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/14775/8457
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 Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.21, n.4, abr. 1986; 399-408
Pesquisa Agropecuária Brasileira; v.21, n.4, abr. 1986; 399-408
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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