Data/hora: 22/06/2024 03:34:41

Biblioteca(s): 	Embrapa Arroz e Feijão.	
Data corrente: 	13/07/2007	
Data da última atualização: 	19/06/2020	
Autoria: 	FAGERIA, N. K.	
Afiliação: 	NAND KUMAR FAGERIA, CNPAF.	
Título: 	Salt tolerance of rice cultivars.	
Ano de publicação: 	1985	
Fonte/Imprenta: 	Plant and Soil, The Hague, v. 88, n. 2, p. 237-243, June 1985.	
ISSN: 	0032-079X	
DOI: 	10.1007/BF02182450	
Idioma: 	Inglês	
Conteúdo: 	The dry matter production and the concentration of nutrients in rice (Oryza sativa L.) cultivars from soil adjusted to different levels of salinity were evaluated under a greenhouse conditions. Soil salinity levels were produced by applying 0.34 mol l&#8722;1 solution of NaCl which resulted in the following levels, control (0.29), 5, 10 and 15 dS m&#8722;1 conductivity of saturation extract. The effect of salinity on dry matter production varied from cultivar to cultivar. The concentrations of P and K in the tops of rice cultivars decreased with increasing soil salinity. But the concentrations of Na, Zn, Cu and Mn increased. Significant varietal differences were found in relation to salinity tolerance. Based on dry matter yield reduction, rice cultivars were classified as tolerant, moderately tolerant, moderately susceptible or susceptible.	
Thesagro: 	Arroz; Oryza sativa; Salinidade.	
Categoria do assunto: 	F Plantas e Produtos de Origem Vegetal	
Registro original: 	Embrapa Arroz e Feijão (CNPAF)	
Exemplares: 	CNPAF - (25545-1) - UPC - AP - PP - 1985 -  - 1985 - DIS