Wael Mtawj * (1), Mazen Rajab(1) and Hassan Khojah (2)

(1). Biotechnology Dept, General Commission for Scientific Agricultural Research (GCSAR), Lattakia, Syria .

(2).Horticulture Dept., Faculty of Agriculture, Tishreen, University, Lattakia, Syria.

(*Corresponding author: Rasha Taowz. E-Mail: kawtharb94@gmail.com).

Received: 15/10/2020 Accepted: 9/11/2020

Abstract

This study was conducted at Lattakia Research Center, General Commission for Scientific Agricultural Research GCSAR, during 2016/2017, In order to study the response of 18 lines of potato Marfona cv. mutagen and unmutagen that were cultured with Spunta Cv. Plants were disposed to salinity stress with different concentrations of NaCl solution (0,50, 100, 150, 200 mM). The results indicated that the existence of a negative correlation between increased oncentrations of salts in the solution and leaves tolerance between clones to salinity stress. The results showed the lines 40mM/3hr/P14, 40mM/3hr/P2, 40mM/2hr/P31, 30mM/4hr/P46, 40mM/4hr/P13 and 40mM/3hr/42 were giving the best values for leaf content from proline ranged from 0.266 to 0.278 mg/g, and the highest values for leaf content from chlorophyll ranged between 12.11 to 12.97 µg/ml.

Key words: Salinity stress, Proline, Chlorophyll, Potato.

Full paper in Arabic: PDF