Influence of shading on the carbohydrates and phenols in cattley guava cuttin
Autor(a) principal: | |
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Data de Publicação: | 1999 |
Outros Autores: | , , , |
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/5569 |
Resumo: | The present work proposed to evaluate the influence of shading on the non-structural carbohydrates and total soluble phenols in leaves and stem of cutting, collected from cattley guava (Psidium cattleyanum Sabine) stock plant. The half-wood cuttings were collected in November of 1996, in plants kept under different shading levels (30, 50 e 70% of reducing light ) and plants kept full sun. The content of total and reducing soluble carbohydrates, starch and total soluble phenols were determined on the leaves and on the stem of each cutting. It was observed that with the increase of shading, there was a raise on starch content and a decrease on reducing carbohydrates content both on leaves and stems. Only on the stem a decrease on total soluble carbohydrates content was observed. The content of phenolic composts were reduced remarkably in the leaves with the increase of shading percentage. In the stems, a small reduction, not significant, was verified, confirming that plants at low sun radiation change their content of store and phenolic composts. |
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Influence of shading on the carbohydrates and phenols in cattley guava cuttinInfluência do sombreamento sobre os teores de carboidratos e fenóis em estacas semilenhosas de araçazeiroPsidium cattleyanum; luminosity; store substances; phenolic compostsPsidium cattleyanum; luminosidade; substâncias de reserva; compostos fenólicosThe present work proposed to evaluate the influence of shading on the non-structural carbohydrates and total soluble phenols in leaves and stem of cutting, collected from cattley guava (Psidium cattleyanum Sabine) stock plant. The half-wood cuttings were collected in November of 1996, in plants kept under different shading levels (30, 50 e 70% of reducing light ) and plants kept full sun. The content of total and reducing soluble carbohydrates, starch and total soluble phenols were determined on the leaves and on the stem of each cutting. It was observed that with the increase of shading, there was a raise on starch content and a decrease on reducing carbohydrates content both on leaves and stems. Only on the stem a decrease on total soluble carbohydrates content was observed. The content of phenolic composts were reduced remarkably in the leaves with the increase of shading percentage. In the stems, a small reduction, not significant, was verified, confirming that plants at low sun radiation change their content of store and phenolic composts.O presente trabalho teve por objetivo avaliar a influência do sombreamento sobre os teores de carboidratos não-estruturais e fenóis solúveis totais em folhas e caules de estacas de plantas matrizes de araçazeiro (Psidium cattleyanum Sabine). Foram coletadas estacas semilenhosas em novembro de 1996, de plantas mantidas sob diferentes níveis de sombreamento (utilizou-se sombrite com malha comercial de 30, 50 e 70% de redução da luz) e de plantas mantidas a pleno sol. Os teores de carboidratos solúveis totais, redutores, amido e fenóis solúveis totais foram determinados nas folhas e no caule de cada estaca. Com o aumento do sombreamento, observou-se uma elevação dos teores de amido e uma redução nos teores de carboidratos redutores nas folhas e no caule e, apenas no caule, uma redução dos carboidratos solúveis totais. Os compostos fenólicos foram reduzidos significativamente nas folhas, à medida que se aumentou a porcentagem de sombreamento, ao passo que nos caules verificou-se uma redução, mas pouco pronunciada, ratificando a afirmação de que plantas submetidas a condições de baixa radiação solar alteram seus teores de compostos de reserva e fenóis.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraJunior, João Guilherme CasagrandeBianchi, Valmor JoãoStrelow, Eder ZarnottBacarin, Marcos AntonioFachinello, José Carlos1999-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/5569Pesquisa Agropecuaria Brasileira; v.34, n.12, dez. 1999; 2219-2223Pesquisa Agropecuária Brasileira; v.34, n.12, dez. 1999; 2219-22231678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/5569/2760info:eu-repo/semantics/openAccess2010-06-29T16:28:34Zoai:ojs.seer.sct.embrapa.br:article/5569Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-06-29T16:28:34Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Influence of shading on the carbohydrates and phenols in cattley guava cuttin Influência do sombreamento sobre os teores de carboidratos e fenóis em estacas semilenhosas de araçazeiro |
title |
Influence of shading on the carbohydrates and phenols in cattley guava cuttin |
spellingShingle |
Influence of shading on the carbohydrates and phenols in cattley guava cuttin Junior, João Guilherme Casagrande Psidium cattleyanum; luminosity; store substances; phenolic composts Psidium cattleyanum; luminosidade; substâncias de reserva; compostos fenólicos |
title_short |
Influence of shading on the carbohydrates and phenols in cattley guava cuttin |
title_full |
Influence of shading on the carbohydrates and phenols in cattley guava cuttin |
title_fullStr |
Influence of shading on the carbohydrates and phenols in cattley guava cuttin |
title_full_unstemmed |
Influence of shading on the carbohydrates and phenols in cattley guava cuttin |
title_sort |
Influence of shading on the carbohydrates and phenols in cattley guava cuttin |
author |
Junior, João Guilherme Casagrande |
author_facet |
Junior, João Guilherme Casagrande Bianchi, Valmor João Strelow, Eder Zarnott Bacarin, Marcos Antonio Fachinello, José Carlos |
author_role |
author |
author2 |
Bianchi, Valmor João Strelow, Eder Zarnott Bacarin, Marcos Antonio Fachinello, José Carlos |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Junior, João Guilherme Casagrande Bianchi, Valmor João Strelow, Eder Zarnott Bacarin, Marcos Antonio Fachinello, José Carlos |
dc.subject.por.fl_str_mv |
Psidium cattleyanum; luminosity; store substances; phenolic composts Psidium cattleyanum; luminosidade; substâncias de reserva; compostos fenólicos |
topic |
Psidium cattleyanum; luminosity; store substances; phenolic composts Psidium cattleyanum; luminosidade; substâncias de reserva; compostos fenólicos |
description |
The present work proposed to evaluate the influence of shading on the non-structural carbohydrates and total soluble phenols in leaves and stem of cutting, collected from cattley guava (Psidium cattleyanum Sabine) stock plant. The half-wood cuttings were collected in November of 1996, in plants kept under different shading levels (30, 50 e 70% of reducing light ) and plants kept full sun. The content of total and reducing soluble carbohydrates, starch and total soluble phenols were determined on the leaves and on the stem of each cutting. It was observed that with the increase of shading, there was a raise on starch content and a decrease on reducing carbohydrates content both on leaves and stems. Only on the stem a decrease on total soluble carbohydrates content was observed. The content of phenolic composts were reduced remarkably in the leaves with the increase of shading percentage. In the stems, a small reduction, not significant, was verified, confirming that plants at low sun radiation change their content of store and phenolic composts. |
publishDate |
1999 |
dc.date.none.fl_str_mv |
1999-12-01 |
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/5569 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/5569 |
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/5569/2760 |
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.34, n.12, dez. 1999; 2219-2223 Pesquisa Agropecuária Brasileira; v.34, n.12, dez. 1999; 2219-2223 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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1793416666471727104 |