苗期低温胁迫对冬小麦根系内源激素系统的影响及其调控  

The Effects of Cold Stress on Endogenous Hormones in Roots of Winter Wheat Seedling Stage and Its Regulation

作　　者：于运华[1] 郑飞[1] 何钟佩[1] 

机构地区：[1]中国农业大学作物化学控制研究中心,北京100094

出　　处：《中国农业大学学报》1998年第S4期24-27,共4页Journal of China Agricultural University

基　　金：国家"九五"科技攻关项目

摘　　要：以盆栽小麦为材料,在控制低温条件下研究了苗期低温胁迫对冬小麦根系内源激素系统的影响及调节剂"壮丰安"对其的调控作用,结果表明:在低温胁迫条件下,冬小麦根系的 IAA,CTKs 含量略有提高,ABA 含量急剧上升,GAs 含量则下降;壮丰安显著影响冬小麦根系内源激素系统的变化过程,有效提高小麦幼苗的抗冻性。This study,focus on the dynamic changes of endogenous hormones in the root system of winter wheat seedling stage under cold stress,shows that the content of IAA and CTKs in the root system slightly increased,the content of ABA being sharply increased. While the content of GAs decreased.Zhuangfengan,a new kind of plant growth regulator, can effectively change the expression level of endogenous hormones in the root system and improve the cold-resistance ability of winter wheat.

关 键 词：冬小麦 根系 内源激素系统 低温胁迫 壮丰安 

分 类 号：S512.1[农业科学—作物学]