盐胁迫对油葵根系活力和幼苗生长的影响  

Effects of salt stress on root activity and seedling growth of oil-sunflower

作　　者：陈炳东[1] 黄高宝[1] 陈玉梁[2] 裴怀弟[1] 崔云玲[2] 岳云 

机构地区：[1]甘肃农业大学,甘肃兰州730070 [2]甘肃省农业科学院,甘肃兰州730070 [3]甘肃省农技推广总站,甘肃兰州730070

出　　处：《中国油料作物学报》2008年第3期327-330,共4页Chinese Journal of Oil Crop Sciences

基　　金：甘肃省跨世纪学术带头人引智科研资助项目(YZ0066200004)

摘　　要：在不同浓度NaC l和NaHCO3混合盐胁迫下,研究油葵根系活力、根系生长情况以及根系与地上部分的关系,以探索油葵的抗盐性。实验结果表明:随着盐浓度的升高,根系和地上部分的生长显著降低;根系体积均低于对照,根系活跃吸收面积/总吸收面积比值的变化比较小,根系活力呈现先增后降的趋势。Effects of NaCI and NaHCO3 on root activity and the relation between roots and above ground parts of oil-sunflower were studied under various salt stress, in order to study the specific characteristics of tolerance level of oil -sunflower. The results indicated that with the increasing concentration of these salts：a） compared with CK,the root and above ground parts were decreased;b） root volumes were decreased;c） the ratio change of living absorbance area/total absorbance area were smaller;d） the activities of roots increased significantly and then followed by a significant decrease of activity.

关 键 词：盐胁迫 油葵 根系活力 土壤含盐量 

分 类 号：S565.501[农业科学—作物学]