Data/hora: 24/05/2024 14:18:02

Biblioteca(s): 	Embrapa Mandioca e Fruticultura.	
Data corrente: 	15/04/2004	
Data da última atualização: 	15/04/2004	
Autoria: 	OLIVEIRA, R. P; GOMES, T. S; FUKUDA, C; VILARINHOS, A. D.	
Afiliação: 	Embrapa Mandioca e Fruticultura, Cruz das Almas.	
Título: 	Micropropagation of six cassava varieties.	
Ano de publicação: 	1998	
Fonte/Imprenta: 	Revista Brasileira de Mandioca, Cruz das Almas, v. 17 p.56, nov., 1998. Suplemento.	
Idioma: 	Inglês	
Conteúdo: 	Abstract: The objective of this work was to evaluate the mass micropropagation of six cassava varieties: Aipim Rosa, Aipim Maranhão, Caravela and Pretinha. Routine techniques of Embrapa cassava and Tropical Fruit Biotechnology Laboratory were used for meristem isolation, explant culture and plantlet acclimatization. Five subcultures of 30 days growth period were developed under 24±2°C, 16h photoperiod and 1600 lux. The multiplication average was 2,8 allowing the production of 172 plantlets per each initial explant, independently of the cultivar and subculture. The varieties showed different  behavior regarding to plantlet multiplication rate. 'Cangaiba and Pretinha' presented the highest multiplication rate per subculture (3,3). The variety Cangaíba presented the highest plantlet height (46,5 mm), although the same relation between the multiplication rate and plantlet height was not observed for others varieties. There were no significant differences among the varieties on callus and root formation, microbial contamination and explant death. Average percentages for these characteristics were 25%, 51%, 7% e 20%, respectively. The plantlets were easily acclimatized with efficiency higher than 90%.     	
Categoria do assunto: 	--	
Registro original: 	Embrapa Mandioca e Fruticultura (CNPMF)	
Exemplares: 	CNPMF - (20963-1) - ADD - AP - -- - 633.68205 -  -  - DIS