高压对小麦种子萌发及幼苗生长的影响  

Effects of High Pressure on Germination of Wheat Seed and Growth of Wheat Seedling

作　　者：申斯乐[1] 徐春娥[1] 龙国徽[1] 王宏华[1] 王彦峰[1] 赵明智[1] 

机构地区：[1]吉林大学生命科学学院,吉林长春130021

出　　处：《吉林农业科学》2003年第6期8-10,共3页Journal of　Jilin Agricultural Sciences

基　　金：吉林大学超硬材料国家重点实验室开放课题资助项目(2002004);吉林大学创新基金资助项目

摘　　要：利用高压力(40MPa、70MPa、100MPa、130MPa)对小麦种子进行处理,发现高压对小麦种子萌发及幼苗生长有一定的抑制作用,并且压力及保压时间对种子萌发均有影响。但这种影响并非随着压力升高而增加,在某一条件(100MPa,10min)下,种子萌发及幼苗长势出现好转。同时测定了淀粉酶,发现其活性的改变与长势的变化相一致;第20d时测定过氧化物酶的活性;又对幼苗低温胁迫测脯氨酸含量和超氧化物歧化酶的活性,发现高压处理对植物幼苗期的抗寒性改变不显著。Physiology of plants under stress is impotents field of Phytophysiology.A con-siderable amount of research has been done on plants under stress,for example,effect of drought.High temperature,low temperature,not right soil PH,high pressure on plants has sel-dom been reported.This experiment studied the effect of high pressure on germination of wheat seed and activities of amylase,peroxidase,superoxide dismut (SOD)of wheat seedling,and very important regulations have been found.

关 键 词：高压 小麦 发芽率 淀粉酶 过氧化物酶 抗性 种子萌发 幼苗生长 种子处理 抑制作用 

分 类 号：S512.1[农业科学—作物学]