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。嘉兰的光合作用日变化呈双峰曲线，并表现出“午睡”现象。
The results of the experiment indicated that the changes of photosynthetic rate showed a single peak curve during the entire process of growth of Cloriosa 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 3 5,000Lx 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.
出处
《植物学通报》
CAS
CSCD
1995年第A01期46-49,共4页
Chinese Bulletin of Botany
