摘要
水生高等植物对藻类的抑制效应受一系列因素的影响 ,本文就水生植物种类、光照、温度及根际微生物这几个因素的影响做了初步探讨。结果显示 :不同的水生高等植物抑藻效应各不相同 ,水葫芦抑藻效应最明显 ;根区光照过强会影响对藻类的抑制 ;温度降低抑藻效应也会随之降低 ;根区微生物的存在对根系分泌物的产生及作用并无促进作用。
A series of factors can affect the allelopathic effect of aquatic higher plants on algae. We studied some factors, such as kinds of aquatic higher plants、light、temperature and microbe. The results indicated that the inhibitory effect of E.crassipes on Secenedesmus arcuatus was the most obvious. Light intensity could affect the allelopathic effect. The allelopathic effect decreased with the temperture decreasing; Microbe in root ecosystem couldn't affect the produce of the secretion from aquatic higher plant root.
