EFFECTS OF DIFFERENT SALINE CONDITIONS ON PROLINE AND ION CONTENT OF TWO COLZA CULTIVARS

The effects of non-saline soils with low, medium and high salinity, (EC = I, ۷, ۱۰ and ۱۸ decisiemens per meter, respectively) on ion content and proline, were studied in different organs of  two colza (Brassica napus L.) cultivars, namely, PF ۷۰۴۵.۹۱ and Hyola ۴۰۱, in pot culture conditions and also the efficiency of comparing these changes were used as a tool for this study. Plants were grown in plastic pots filled with soils with different electrical currencies mentioned above, collected from different areas of the Golestan Province, Iran. After five months, randomly selected plants were used for determining proline content of root and shoot and also content of root, stem, rosette and inflorescence leaves. Results showed that, salinity increased the content of sodium, chlorine, and proline in each two cultivars. The potassium content in each two cultivar decreased under salinity. The calcium content decreased in root and increased in shoot.

Keywords:

Salinity , Ion , Proline , Colza , Brassica