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Journal of Agronomy
Year: 2006  |  Volume: 5  |  Issue: 2  |  Page No.: 308 - 313

Responses of Physiological Related Traits in Mature Grains from Two Barley Cultivars (Acsad 1230 and Arig 8) Evaluated under Saline Stress

Eleuch Lilia, Rezgui Salah, Slim Amara Hajer and Daaloul Abderrazak    

Abstract: Two six row barley cultivars (Hordeum vulgare L.): Acsad 1230 and Arig 8, were grown under three salt treatments: Control, 70 and 140 mM of NaCl. Physiological related traits were assessed using mature kernels including 1000 kernal weight (TKW), soluble and total proteins, soluble and bounded phenols and Na+ and Cl¯ content per kernel. Responses to salt tolerance were different for both cultivars. Results suggested that Acsad 1230 was more tolerant to salt treatment than Arig 8. Greater TKW and increased accumulation of soluble and total proteins as well as soluble and bound phenols were noted in kernels of Acsad 1230 along with high ions concentration of Na+ and Cl¯. The amount of total protein and phenol components were found stable in Acsad 1230 whereas these components decreased significantly in Arig 8. Soluble proteins increased significantly in Acsad 1230 and were reduced in Arig 8. The higher level of soluble proteins in Acsad 1230 was associated with increased ions concentration of Na+ and Cl¯. This investigation suggested that total and soluble proteins as well as phenol components along with Na+ and Cl¯ concentrations may have a different control on the expression of TKW and indicates a different salt tolerance path expressed in both barley cultivars.

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