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The effects of salt stress on growth, nitrate reduction and proline and glycinebetaine accumulation in Prosopis alba Braz. J. Plant Physiol.
Meloni,Diego Ariel; Gulotta,Marta Rosalía; Martínez,Carlos Alberto; Oliva,Marco Antonio.
Prosopis alba (algarrobo) is one of the most important salt-tolerant legumes used in the food and furniture industries. The effects of salinity on some growth and physiological parameters in algarrrobo seedlings were investigated. 17-Day-old seedlings were subjected to three salt treatments by adding NaCl to the growth medium in 50 mmol.L-1 increments every 24 h until the final concentrations of 0, 300 and 600 mmol.L-1 were reached. Only the highest NaCl concentration affected all of the considered parameters. Thus, 600 mmol.L-1 NaCl caused a significant reduction in root and shoot growth, but an increase in the root/shoot ratio. Leaf relative water content, nitrate content and nitrate reductase activity in leaves and roots were also decreased. At 300 and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycinebetaine; Nitrate reductase; Proline; Salinity.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202004000100006
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