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Pesquisa Florestal Brasileira
Article . 2010 . Peer-reviewed
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Pesquisa Florestal Brasileira
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A Micropropagação de Eucalipto

Authors: Ivar Wendling; Leonardo Ferreira Dutra; Gilvano Ebling Brondani;

A Micropropagação de Eucalipto

Abstract

O eucalipto e o genero florestal mais pesquisado em micropropagacao, entretanto, sao poucos os resultados efetivos obtidos com sua multiplicacao continua. A micropropagacao inclui a desinfestacao e cultivo dos explantes em meio nutritivo e condicoes assepticas, a multiplicacao dos propagulos em sucessivos subcultivos e o enraizamento in vitro ou ex vitro. Como vantagens, possibilita: alto rendimento por planta matriz; obtencao de plantas isentas de viroses; producao de mudas em qualquer epoca do ano; producao intensiva de mudas sadias, em curto periodo de tempo e espaco reduzido; clonagem de plantas de dificil propagacao vegetativa por metodos convencionais como estaquia e miniestaquia; e preservacao de plantas matrizes sem riscos de infeccao. Suas desvantagens incluem a dependencia de um laboratorio de cultura de tecidos, cuja manutencao implica em altos custos, alem da exigencia de mao-de-obra altamente especializada; elevada possibilidade de contaminacao; variacao de condicoes entre e dentro de clones; dificuldade de encontrar o meio adequado para a especie desejada; e possibilidade de ocorrencia de mutacoes, como resultado do uso de fitorreguladores. Embora tenha alto custo em comparacao a outros metodos de clonagem, a micropropagacao de eucalipto e estrategica para manter material vegetal superior in vitro ou para abastecer o microjardim clonal. Doi: 10.4336/2009.pfb.58.49

  • BIP!
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    citations
    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).
    21
    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.
    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Top 10%
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
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citations
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!
21
Top 10%
Top 10%
Top 10%
gold