Data/hora: 03/06/2024 18:27:27

Biblioteca(s): 	Embrapa Mandioca e Fruticultura.	
Data corrente: 	01/04/2004	
Data da última atualização: 	01/04/2004	
Autoria: 	DURAN ZUAZO, V. H.; MARTÍNEZ- RAYA, A.; AGUILAR RUIZ, J.	
Título: 	Salt tolerance of mango rootstocks (Mangifera indica L. cv. Osteen).	
Ano de publicação: 	2003	
Fonte/Imprenta: 	Spanish Journal of Agricultural Research, Madrid, v.1, n.1, p. 67-68, mar., 2003.	
Idioma: 	Português	
Conteúdo: 	The aim of this work was to establish the criteria to determine the relative tolerance of mango rootstocks (Mangifera indica L.) to high Cl- and Na+ concentrations present in irrigation water. Two rooststocks, Gomera-1 and Gomera-3 grafted with the cultivar Osteen, were subjected to study. Grafted plants were exposed to salinized irrigation waters measured by electrical conductivity (1.02, 1.50, 2.00 and 2.50 dS m-¹). Results indicated differences in retaining toxic elements in different organs (roots, stem, or leaves) of both rootstocks. Gomera-3 was more sensitive as took up higher amounts of CL- and Na+ than Gomera-1. Gomera-1was more tolerant, being the tolerance possibly associated with the capacity of this rooststock to restrict the uptake and transport of Cl- and Na+ ions from the root system to the aboveground parts. The Cl- ions were more toxic in rootstock and cultivar leaves, while the Na+ ions were toxic in the roots. Therefore, the present study reveals that Gomera-1 proved to be the most adaptable rootstock to saline conditions, making it feasible for use in areas whith low water quality.          	
Palavras-Chave: 	Brackisth water; Cl- and Na+; Subtropical orchards; uptake.	
Thesaurus Nal: 	salt stress.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Mandioca e Fruticultura (CNPMF)	
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