植物学报 ›› 1995, Vol. 12 ›› Issue (增刊): 46-49.

• 研究报告 • 上一篇    下一篇

嘉兰光合特性和秋水仙碱含量变化的研究

郭本森 刘胜桂   

  1. 1(浙江农村技术师范专科学校 宁波 315101) 2(中国科学院西双版纳热带植物园 勐腊 666303)
  • 出版日期:1995-09-15 发布日期:1995-09-15

Studies on the Changes of Photosynthetics and Colchicine Content of Gloriosa superba

Guo Ben-sen and Liu Sheng-gui   

  1. 1(Zhejiang Rural Teachers' College of Technology, Ningbo 315101) 2(Xishuangbanna Tropical Botanical Garden, Academia Sinica, Mengla 666303)
  • Online:1995-09-15 Published:1995-09-15

摘要: 嘉兰整个生长期光合速率变化呈一单峰曲线。高峰期前,用促进茎、叶生长和延长有效光合作用时间的方法,能在生长后期提高块茎的产量和秋水仙碱的含量。栽培条件下嘉兰的秋水仙碱含量高于野生条件下生长的。嘉兰的光补偿点在1,000Lx, 光饱和点在35,000Lx。嘉兰的光合作用变化呈双峰曲线,并表现出“午睡”现象。

Abstract: The results of the experiment indicated that the changes of photosynthetic rate showed a single peak curve during the entire process of growth of Gloriosa superba. The yield of tuber and colchicine content could be increased by means of promoting the growth of stem and leaves and elongating the effective photosynthetic time before the peak appeared. The colchicine contentunder the condition of cultivation were higher than that of Gloriosa superba grown under wild condition. It was also found that the light compensation point was at 1.000Lx and light saturation point was from 35,000Lx for favorable range of photosynthesis. The change trend of photosynthetic rate showed a double Peak curve during the day, and a phenomenon of midday depression appeared.