Effect of Nitrogen and Drought Stress on Growth and Physiological Indexes of Winter Wheat Seedlings
ZHAO Junxia
MA Geng
YUE Pengli
WANG Qiang
LIU Ganlin
XIE Xudong
WANG Chenyang?
Abstract：Yumai 49-198 and Zhoumai 22 were used as materials to study the effects of nitrogen and drought stress on growth,development and physiological indexes of winter wheat in Hoagland’ s nutrient solution. The results indicated that nitrogen and water stress for five days could significantly decrease the plant height and shoot dry weight,but increase the root dry weight and root-shoot ratio,of which the com-bination stress of nitrogen and water stress( N0+PEG) had the largest influence. In the two stresses,the nitrate content of leaves and roots reduced significantly,and the effect of nitrogen was greater. The con-tents of soluble protein and free amino acids decreased significantly under nitrogen stress,but increased dramatically under water stress. GS activity of leaves was reduced greatly under nitrogen stress, while it showed difference between the two wheat genotypes under drought stress, Yumai 49-198 increased and Zhoumai 22 decreased.
Keywords：Triticum aestivumnitrogen stressdrought stressgrowth and developmentnitrogen meta-bolism
Publication Date：2015-05-02
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：5( 26-30 )