Induction or early flowering in clones of Hevea brasiliensis and Hevea brasiliensis x Hevea benthamiana hybrid clones

Detalhes bibliográficos
Autor(a) principal: Carvalho, Claudio José Reis de
Data de Publicação: 2014
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/16600
Resumo: Early flowering was obtained in fourteen month old nursery plants of IAN 873 and PFB 5 (Hevea brasiliensis) treated for this purpose. Treatment with Cumarine and Ethephon was efficient only on ringbarked trees. Root pruning or horizontal training of shoots were ineffective in flowering though a break in apical dominance has been noted for the horizontal position. The use of Dimethyl Sulfoxide enhanced the penetration of the phyto-regulators into the leaves. No treatment was effective in inducing flowering in in H. benthamiana (clones IAN 717 and Fx 3899). The possibility is considered that early flowering is primarily due to the blockage of downward transport of photosynthates, with a consequent increase in its availability to the apical meristem quiescent zones.
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spelling Induction or early flowering in clones of Hevea brasiliensis and Hevea brasiliensis x Hevea benthamiana hybrid clonesIndução de floração precoce em clones de Hevea brasiliensis e híbridos de Hevea brasiliensis x Hevea benthamianaphysiology; juvenility; modification; clonal; variationfisiologia; indução; juvenilidade; variaçãoEarly flowering was obtained in fourteen month old nursery plants of IAN 873 and PFB 5 (Hevea brasiliensis) treated for this purpose. Treatment with Cumarine and Ethephon was efficient only on ringbarked trees. Root pruning or horizontal training of shoots were ineffective in flowering though a break in apical dominance has been noted for the horizontal position. The use of Dimethyl Sulfoxide enhanced the penetration of the phyto-regulators into the leaves. No treatment was effective in inducing flowering in in H. benthamiana (clones IAN 717 and Fx 3899). The possibility is considered that early flowering is primarily due to the blockage of downward transport of photosynthates, with a consequent increase in its availability to the apical meristem quiescent zones.Foi obtida floração precoce em plantas jovens de seringueira (Hevea brasiliensis) de IAN 873 e PFB 5, de quatorze meses de idade, tratadas para esse fim. Os fitorreguladores Cumarina e Ethephon foram eficientes só quando aplicados em plantas aneladas. A poda das raízes ou o crescimento forçado dos caules na posição horizontal produziram efeito de indução de floração; porém na posição horizontal observou-se queda de dominância apical. O uso de Dimetil Sulfóxido aparentemente aumentou a penetração dos fitorreguladores nas folhas. Nenhum tratamento foi eficiente para indução de floração precoce em híbridos de  H. benthamiana (clones de IAN 717 e Fx 3899). É possível que as plantas jovens tenham sido induzidas à floração principalmente pelo bloqueio da exportação de fitoassimilados e consequente acúmulo de substrato orgânico no caule, o que aumenta sua disponibilidade em zonas quiescentes do meristema apical.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCarvalho, Claudio José Reis de2014-04-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/16600Pesquisa Agropecuaria Brasileira; v.15, n.4, abr. 1980; 405-411Pesquisa Agropecuária Brasileira; v.15, n.4, abr. 1980; 405-4111678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/16600/10886info:eu-repo/semantics/openAccess2014-04-15T19:35:38Zoai:ojs.seer.sct.embrapa.br:article/16600Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-15T19:35:38Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Induction or early flowering in clones of Hevea brasiliensis and Hevea brasiliensis x Hevea benthamiana hybrid clones
Indução de floração precoce em clones de Hevea brasiliensis e híbridos de Hevea brasiliensis x Hevea benthamiana
title Induction or early flowering in clones of Hevea brasiliensis and Hevea brasiliensis x Hevea benthamiana hybrid clones
spellingShingle Induction or early flowering in clones of Hevea brasiliensis and Hevea brasiliensis x Hevea benthamiana hybrid clones
Carvalho, Claudio José Reis de
physiology; juvenility; modification; clonal; variation
fisiologia; indução; juvenilidade; variação
title_short Induction or early flowering in clones of Hevea brasiliensis and Hevea brasiliensis x Hevea benthamiana hybrid clones
title_full Induction or early flowering in clones of Hevea brasiliensis and Hevea brasiliensis x Hevea benthamiana hybrid clones
title_fullStr Induction or early flowering in clones of Hevea brasiliensis and Hevea brasiliensis x Hevea benthamiana hybrid clones
title_full_unstemmed Induction or early flowering in clones of Hevea brasiliensis and Hevea brasiliensis x Hevea benthamiana hybrid clones
title_sort Induction or early flowering in clones of Hevea brasiliensis and Hevea brasiliensis x Hevea benthamiana hybrid clones
author Carvalho, Claudio José Reis de
author_facet Carvalho, Claudio José Reis de
author_role author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Carvalho, Claudio José Reis de
dc.subject.por.fl_str_mv physiology; juvenility; modification; clonal; variation
fisiologia; indução; juvenilidade; variação
topic physiology; juvenility; modification; clonal; variation
fisiologia; indução; juvenilidade; variação
description Early flowering was obtained in fourteen month old nursery plants of IAN 873 and PFB 5 (Hevea brasiliensis) treated for this purpose. Treatment with Cumarine and Ethephon was efficient only on ringbarked trees. Root pruning or horizontal training of shoots were ineffective in flowering though a break in apical dominance has been noted for the horizontal position. The use of Dimethyl Sulfoxide enhanced the penetration of the phyto-regulators into the leaves. No treatment was effective in inducing flowering in in H. benthamiana (clones IAN 717 and Fx 3899). The possibility is considered that early flowering is primarily due to the blockage of downward transport of photosynthates, with a consequent increase in its availability to the apical meristem quiescent zones.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-15
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/16600
url https://seer.sct.embrapa.br/index.php/pab/article/view/16600
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/16600/10886
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.15, n.4, abr. 1980; 405-411
Pesquisa Agropecuária Brasileira; v.15, n.4, abr. 1980; 405-411
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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