储藏温度、NaCl及PEG渗透处理对中间锦鸡儿(Caragana intermedia)种子萌发的影响  

Effects of Storage Temperature,NaCl and PEG Osmotic Treatment on Seed Germination of Caragana Intermedia

作　　者：米志英[1] 金文兵 朱振华[1] 来强[1] 杜海燕[1] 

机构地区：[1]内蒙古电子信息职业技术学院,内蒙古呼和浩特010070 [2]内蒙古乌兰察布林业研究所,内蒙古乌兰察布012000

出　　处：《中国沙漠》2015年第4期907-911,共5页Journal of Desert Research

基　　金：内蒙古自治区高等学校科学研究项目(NJ10269)

摘　　要：以中间锦鸡儿(Caragana intermedia)种子为试验材料,进行储藏温度(室温,15~35℃;保鲜,4~5℃;冷藏,-10^-4℃)、NaCl盐胁迫及PEG渗透胁迫处理下的萌发试验。结果表明:前期经保鲜处理的种子无论在盐胁迫还是在干旱胁迫条件下都要比经室温和冷藏处理的种子发芽率高,其种子在盐胁迫条件下的最高发芽率为90%,在干旱胁迫条件下的最高发芽率为87%。Storage temperature variation and salt and PEG treatments were used to assess the effects of drought and salt stress on the germination and growth rate of Caraganaintermedia.Seeds were treated with 15-35 ℃(room temperature),4-5 ℃(refreshment)and-10--4 ℃(freezing).NaCl and PEG were added for simulation of salt stress and drought stress.Seed germination rate and growth were measured.Analyses showed that no matter in salt stress or drought stress,germination rate of C.intermedia was higher in the refreshment condition than that in room and freezing conditions.The maximum germination rate in the salt stress was 90% and 87%in the drought stress.

关 键 词：储藏温度 NACL PEG 种子萌发 

分 类 号：S793.3[农业科学—林木遗传育种]