2000
DOI: 10.1590/s0100-204x2000001200002
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Avaliação de um sistema de micropropagação massal de variedades de mandioca

Abstract: O objetivo deste trabalho foi avaliar um sistema de micropropagação massal de variedades de mandioca (Manihot esculenta Crantz). Foram utilizadas as variedades Aipim-Rosa, Aipim-Maranhão, Cangaíba, Caravela, Cravela e Pretinha. Para o isolamento dos meristemas, multiplicação e aclimatização das plântulas, empregaram-se métodos desenvolvidos na Embrapa-Centro Nacional de Pesquisa de Mandioca e Fruticultura Tropical. Após 30 dias, obteve-se desenvolvimento e formação de plântulas em 78% dos meristemas. Independe… Show more

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Cited by 10 publications
(10 citation statements)
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“…In addition to provide explants isolated from plants not subjected to previous in vitro manipulation, the use of explants isolated from shoots sprouted from stem cutting had the additional advantage that it obviated the need to establish in vitro cultures of the desired genotypes in order to have a steady supply of explants for inducing SE. This would save the time needed to establish in vitro culture of most cassava genotypes, around three to four months (Oliveira et al, 2000). The possibility of inducing secondary embryogenesis from cassava primary somatic embryos was examinated using green cotyledons from mature primary somatic embryos as explants.…”
Section: Resultsmentioning
confidence: 99%
“…In addition to provide explants isolated from plants not subjected to previous in vitro manipulation, the use of explants isolated from shoots sprouted from stem cutting had the additional advantage that it obviated the need to establish in vitro cultures of the desired genotypes in order to have a steady supply of explants for inducing SE. This would save the time needed to establish in vitro culture of most cassava genotypes, around three to four months (Oliveira et al, 2000). The possibility of inducing secondary embryogenesis from cassava primary somatic embryos was examinated using green cotyledons from mature primary somatic embryos as explants.…”
Section: Resultsmentioning
confidence: 99%
“…Several authors have used tissue culture to regenerate cassava plants using either organogenesis with meristem cultures (Oliveira et al, 2000) or axillary buds and nodal explants (Konan et al, 1997;Lima et al, 2002), or through somatic embryogenesis (Hankoua et al, 2005;Saelim et al, 2006). However, there have been no reports of studies examining somaclonal variation in cassava plants regenerated by one of the systems mentioned above, except for the study by Raemakers et al (2001), who observed variations in the shape, color, and size of leaves, the presence of branches, and reduced size and vigor in transgenic plants regenerated from the culture of friable embryogenic callus in 6 of the 10 cassava genotypes tested.…”
Section: Discussionmentioning
confidence: 99%
“…e obtiveram resultados negativos. Ainda, no trabalho de Oliveira et al (2000), foi testada, em meio MS, a diferenciação de meristemas apicais de diferentes variedades de mandioca (Manihot esculenta Crantz) medindo entre 0,4 a 0,6 mm; como resultados foram alcançados níveis satisfatórios no estabelecimento e multiplicação dos explantes. Empregando o meio MS e o WPM no cultivo in vitro de amoreira-preta "Xavante" e framboeseira "Batum" e "Heritage", Leitzke et al (2010), encontraram os melhores resultados utilizando o meio MS para ambas as espécies.…”
Section: Resultsunclassified