Data/hora: 09/06/2024 16:51:35

Provedor de dados: 	Ciência Rural	
País: 	Brazil	
Título: 	Induction and identification of polyploids in Cattleya intermedia Lindl. (orchidaceae) by in vitro techniques	
Autores: 	Silva,Paulo Artur Konzen Xavier de Mello e; Callegari-Jacques,Sídia; Bodanese-Zanettini,Maria Helena.	
Data: 	2000-03-01	
Ano: 	2000	
Palavras-chave: 	Cattleya; Colchicine; Chromosome number; Orchid improvement; Polyploidy; Stomata analysis.	
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.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782000000100017	
Editor: 	Universidade Federal de Santa Maria	
Relação: 	10.1590/S0103-84782000000100017	
Formato: 	text/html	
Fonte: 	Ciência Rural  v.30 n.1 2000	
Fonte: 	info:eu-repo/semantics/openAccess