Li Kai-qiang, Wu Wei, Zheng You-liang, Dai Yong, Mou Lan, Liao Kai
College of Agronomy-Sichuan Agricultural Universty, Ya' an 625014, China.
Zhongguo Zhong Yao Za Zhi. 2008 Aug;33(16):1948-51.
To study the physiologic indexes, yield and the contents of alkaloids of Fritillaria cirrhosa D. Don under different temperature.
The growth temperatures (15, 20, 25, 30 degrees C) of F. cirrhosa were controlled by using artificial climate, the growth was observed, the contents of chlorophyll a and b, soluble sugar, MAD, proline of the leaves of F. cirrhosa were tested, and the yield and the alkaloids content of the bulbs were analyzed.
The growth period of F. cirrhosa under 15, 20 degrees C were appropriately extended. The difference of the content of leaves chlorophyll b under four temperatures and the contents of total chlorophyll and chlorophyll a under 15, 20, 30 degrees C were not significant. The contents of soluble sugar, MAD and proline of leaves and the growth ratio, dry weight and content of alkaloids of bulb increased with the temperature decrease.
Higher temperature is not suitable for the growth of F. cirrhosa. Under the relatively lower temperature, the growth period of F. cirrhosa extended, the bulb can grow properly, and the content of alkaloid increased. F. cirrhosa can improve its cold tolerance by increasing the content of proline and soluble sugar, and it also can maintain the normal content of chlorophyll under the lower temperature.
研究不同温度下川贝母的生理指标、产量及生物碱含量。
利用人工气候控制川贝母的生长温度（15、20、25、30℃），观察其生长情况，测定川贝母叶片叶绿素a和b、可溶性糖、丙二醛、脯氨酸的含量，并分析鳞茎的产量及生物碱含量。
15、20℃下川贝母的生育期适当延长。四个温度下叶片叶绿素b含量以及15、20、30℃下总叶绿素和叶绿素a含量差异不显著。叶片可溶性糖、丙二醛和脯氨酸含量以及鳞茎的生长率、干重和生物碱含量随温度降低而增加。
较高温度不适宜川贝母生长。在相对较低温度下，川贝母生育期延长，鳞茎能正常生长，生物碱含量增加。川贝母可通过增加脯氨酸和可溶性糖含量提高耐寒性，且在较低温度下能维持叶绿素正常含量。
