The investigation of the adaptation ability of Ctenanthe setosa plant exposed to severe drought stress to the new drought conditions

The Investigation of The Adaptation Ability of Ctenanthe setosa Plant Exposed to Severe Drought Stress to The New Drought Conditions In this study the ability of adaptation of Ctenanthe setosa plant exposed to severe drought stress to the new drought conditions was investigated. The relation between leaf rolling and drought stress, soluble proteins, proline, reducing sugar, total soluble carbohydrates levels, and changes in peroxidase activity during the leaf rolling were determined. It was observed that leaf rolling developed parallel to increased drought, rolling took place faster than the plants exposed to the stress for the first time, and that leaves remained in rolling state for longer periods than the leaves of the plants exposed to stress for the first time. Reductions in the leaf area ratio and in the length of leaf petiol were recorded. As a result of the quantitative analysis, it was determined that soluble protein content decreased compared to control, but increased after 23 days of drought, and the level of proline increased, and the content of reducing sugar and total soluble carbohydrates were not statistically significant, and there was also an increase in the activity of peroxidase compared to control. The findings indicate that the plants previously exposed to drought are morphologically and physiologically more resistant to the new stresses Key words: Ctenanthe setosa, Drought stress, Leaf rolling, Proline, Reducing sugar, Peroxidase VI