EFFET DU STRESS SALIN SUR LA TENEUR EN EAU ET CERTAINS OSMOLYTES CHEZ LE BLE DUR Triticum durum var KEBIR PULVERISE PAR UNE PHYTOHORMONE SYNTHETISEE: BENZYL-AMINO-PURINE (BAP)

Abstract

This work aims to study the influence of salt stress of the soil by different concentrations of NaCl (0, 10, 15 g / l) on the water content and some osmolytes of the durum wheat Triticum durum var KEBIR at growth stage and to reduce its effect by spraying the BAP (Phytohormone synthesized: Benzyl amino purine) with concentrations of about 10, 20, 30 mg / l. The results obtained show that the BAP used positively affects on the water content of stressed plants when they are sprayed with the concentrations 20 and 30 mg /l. Similarly, an increase is observed in different contents of soluble sugars, chlorophylls a and b particularly under the effect of the concentration 10 mg / l of BAP. On the other hand, the recorded values showed that the salinity has perfectly affected the concentration or rate of proline on the levels of the plants whether treated by the BAP or not