| Registro completo |
| Provedor de dados: |
Ciência Rural
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| País: |
Brazil
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| Título: |
Induction and identification of polyploids in Cattleya intermedia Lindl. (orchidaceae) by in vitro techniques
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| Autores: |
Silva,Paulo Artur Konzen Xavier de Mello e
Callegari-Jacques,Sídia
Bodanese-Zanettini,Maria Helena
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| Data: |
2000-03-01
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| Ano: |
2000
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| Palavras-chave: |
Cattleya
Colchicine
Chromosome number
Orchid improvement
Polyploidy
Stomata analysis
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| Resumo: |
The effect of colchicine on the protocorm-like bodies of Cattleya intermedia L. (Orchidaceae) cultured in vitro was studied. Different concentrations of the drug (0.00, 0.05, 0.10 and 0.20%) as well as two times of culture (4 or 8 days) were tested to determine the best treatment for the induction of tetraploid plants. Of the 3 colchicine levels applied, 0.05 and 0.10% of drug treatments appeared to be effective on the production of mixoploids and tetraploids and could be further used in breeding programs. The suitability of stomatal area and stomata density as criteria for the distinction between diploids and tetraploids was also tested. The results suggested that tetraploid plants could be identified with a fair amount of certainty when the screening was based on the density of stomata.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782000000100017
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| Editor: |
Universidade Federal de Santa Maria
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| Relação: |
10.1590/S0103-84782000000100017
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| Formato: |
text/html
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| Fonte: |
Ciência Rural v.30 n.1 2000
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| Direitos: |
info:eu-repo/semantics/openAccess
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