Effect of Cold Acclimation and Deaссlimation on the Content of Soluble Carbohydrates and Dehydrins in the Leaves of Winter Wheat

Abstract

In this work, we studied the influence of cold acclimation (first stage – 8 °С/2 °С for 10 days and second stage – subsequence action of -2 °С for 10 days) and deacclimation (10 °С for 2 days) on the content of soluble carbohydrates and the synthesis of dehydrins in leaves of two variety of winter wheat (Triticum aestivum L.) that are differed in frost resistance. It is detected that the winter wheat of Irkutskaya variety and Pamyat variety are differed in the dynamics of accumulation and content of dehydrins in leaves. The most frost resistant Irkutskaya is characterized by a higher content of dehydrins in the leaves during acclimation and deacclimation, compared with the less frost resistant Pamyat.

Keywords

• cold acclimation
• deacclimation
• dehydrins
• carbohydrates
• winter wheat