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Sitientibus : Série Ciências Biológicas
Article . 2005 . Peer-reviewed
Data sources: Crossref
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Efeito da sacarose sobre o enraizamento e desenvolvimento “in vitro” de Syngonanthus mucugensis Giul.

Authors: José Roberto dos S. Silva; Alone Lima-Brito; José Raniere F. de Santana; Ana Lúcia C. Dornelles;

Efeito da sacarose sobre o enraizamento e desenvolvimento “in vitro” de Syngonanthus mucugensis Giul.

Abstract

O trabalho teve por objetivo avaliar o efeito da sacarose no enraizamento e desenvolvimento in vitro de Syngonanthus mucugensis Giul., planta endêmica da Chapada Diamantina/BA. Foram testadas cinco concentrações de sacarose no meio MS/2, solidificado com 0,8% de ágar, com pH ajustado para 5,7. O material vegetal utilizado consistiu de plantas com 60 dias de idade, com aproximadamente 2 cm de altura obtidas da germinação in vitro das sementes. As plantas foram inoculadas em câmara de fluxo laminar em frascos “tipo maionese” e mantidas em sala de crescimento sob radiação fotossintética ativa de 9 μmol.m-2.s-1 e temperatura de 25 ± 2ºC, durante 60 dias. O delineamento estatístico utilizado foi inteiramente casualizado com três repetições, em que cada repetição consistiu de 10 frascos, sendo inoculadas cinco plantas por frasco. As variáveis avaliadas foram: número de raízes formadas, matéria seca da raiz, matéria fresca total e número de folhas emitidas. Os resultados mostraram que a sacarose determinou um efeito significativo sobre as características analisadas. Com a redução de 30 g.L-1 para 15 g.L-1, houve um acréscimo no número de raízes por planta e no peso da matéria fresca total. O estudo mostrou um efeito positivo da redução da sacarose para o enraizamento de S. mucugensis, sendo a concentração de 15 g.L-1 no meio MS/2 a mais indicada para o estabelecimento in vitro dessa espécie. Apoio: IMSEAR/CNPq.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
7
Average
Top 10%
Average
gold