Stress Resistance of Rhodiola under Freezing Injury Stress
10.3969/j.issn.1005-5304.2014.01.028
- VernacularTitle:对红景天冻害胁迫的抗逆性研究
- Author:
Lingfa MA
;
Yuan CHEN
- Publication Type:Journal Article
- Keywords:
freezing injury stress;
Rhodiola;
enzyme activity;
stress resistance;
germination
- From:
Chinese Journal of Information on Traditional Chinese Medicine
2014;(1):91-94
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the stress resistance of Rhodiola under freezing injury stress. Methods With R.kirilowii, R.crenulata, R.Algida and R.fastigiata as the experimental materials, the effects of freezing injury stress on emerging time, duration of seedling emergence, emergence rate, surviving rate, the activity of SOD and POD were observed by field test and experimental detection. Results Before seeding, the effect of freezing injury stress on R.kirilowii was the largest, and that on R.fastigiata was the least. When injury stress happened during seedling stage, surviving rate, increase of SOD and POD activities of R.kirilowii was the least, indicating the freezing injury was severe. R.fastigiata was the best in those indexes. The stress resistance of Rhodiola was as follows:R.fastigiata > R.crenulata > R.Algida > R.kirilowii. Conclusion R. fastigiata and R.crenulata are good choice in introduction and cultivation of Rhodiola in Gannan area of Gansu province, and R.fastigiata is the best.
