Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.1/6287
Título: The combined effects of salts and calcium on growth and mineral accumulation of Tetragonia tetragonioides - A salt removing species
Autor: Neves, Alcinda
Miguel, Maria Graça
Marques, C.
Panagopoulos, Thomas
Beltrão, J.
Data: 2008
Editora: World Scientific and Engineering Academy and Society
Resumo: High soil salinity levels have drastic effects on the growth and yield of horticultural crops. Salination may be controlled by environmentally safe and clean techniques as the use of salt removing species. Tetragonia tetragonioides, a wild halophytic species has been studied for this purpose. It was studied the effect of high salt concentrations on growth and mineral composition and the influence of high calcium concentration on plant response. Plants were grown in 5 litters in randomized pots and were daily irrigated. The NaCl concentration of the irrigation solution ranged from 0 up to 200 mM. Additionally, the irrigation solution provided plants with two calcium concentrations: 2 and 10 mM of CaCl2. T. tetragonioides present high ability for sodium and chloride leaf accumulation. Besides that, the species provide more advantages: 1) high biomass production potential; 2) several harvests during the year (summer and winter); 3) high content of minerals; 4) horticultural importance, as a leaf vegetable crop; 6) easy multiplication (seed propagation) and easy crop management; 7) tolerance to drought and warm conditions; 8) soil erosion control due to its excellent soil covering. The obtained results suggest that plants supplemented with the high calcium level had longer stems than plants in the low calcium level, accumulated greater amounts of calcium at high salinity levels and present similar leaves dry matter.
Peer review: yes
URI: http://hdl.handle.net/10400.1/6287
ISSN: 1790-5079
Aparece nas colecções:FCT2-Artigos (em revistas ou actas indexadas)



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