河南农业科学Issue(5)：26-30,5.
氮素和干旱胁迫对冬小麦幼苗生长发育及生理指标的影响
Effect of Nitrogen and Drought Stress on Growth and Physiological Indexes of Winter Wheat Seedlings
摘要
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.关键词
小麦/氮素胁迫/干旱胁迫/生长发育/氮代谢Key words
Triticum aestivum/nitrogen stress/drought stress/growth and development/nitrogen meta-bolism分类
农业科技引用本文复制引用
赵君霞,马耕,岳鹏莉,王强,刘甘霖,谢旭东,王晨阳..氮素和干旱胁迫对冬小麦幼苗生长发育及生理指标的影响[J].河南农业科学,2015,(5):26-30,5.基金项目
农业部公益性行业(农业)科研专项(201203079) （农业）
“十二五”国家科技支撑计划项目(2013BAD07B07) （2013BAD07B07）
河南省小麦产业技术体系岗位专家项目(S2010-01-G07) （S2010-01-G07）
