摘要
通过相似系数法对暗紫贝母分布的群落进行了数值分类，确定了暗紫贝母分布的群落类型和群落特征．报道了暗紫贝母的生态分布、植被的种类组成及其区系分布．为川贝母的野生抚育和药材生产保护区的建立提出了依据．
Gradient concentration experiments showed that 0 05～1 0mg/L Na 2SeO 3 enhanced rice seedling growth,among which 0 5mg/L was the optimum concentration.The GSH Px activity of rice seedling strikely depended on the content of Selenium,revealing that it was probably induced by Na 2SeO 3,Compared with the control,the GSH Px activity in rice seedling treated with 5 0mg/L Na 2SeO 3 increased by 95 8%.But in rice seedling treated with 10 0mg/L Na 2SeO 3,the GSH Px activity enhanced by only 69 2%.Therefore,the violent damage of rice seedling caused by 5 0 mg/L Na 2SeO 3 treatment was efficiently swept by GSH Px.
出处
《西南师范大学学报（自然科学版）》
CAS
CSCD
北大核心
1997年第4期416-420,共5页
Journal of Southwest China Normal University(Natural Science Edition)
基金
国家自然科学基金
关键词
暗紫贝母
植被
中药材
群落
数值分析
glutanthione peroxidase
Na 2SeO 3
rice sedling
enzyme activity
