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在实验室和温室条件下 ,用从石菖蒲根茎中提取的挥发油经减压蒸馏获得的组分四 ,对稗草、鳢肠和水稻的萌发与生长进行了生物学效应测试。结果表明 ,在低浓度时促进供试植物的萌发和生长 ,而在高浓度时则抑制萌发和生长。实验室培养皿条件下 ,5 0～ 4 0 0 mg/ L浓度抑制作用产生并逐渐增加 ,4 0 0 mg/ L以上达到 90 %或更高。但是 ,温室盆钵条件下 ,30 0 0 mg/ L时才出现抑制作用 ,在 10 0 0 mg/ L以下均表现促进作用。
Under the laboratory and greenhouse conditions, the volatile oil extracted from the roots of A. gramineus was distilled under reduced pressure to obtain the fourth component of barnyardgrass, sausage and rice germination and growth of a biological effect test. The results showed that germination and growth of the test plants were promoted at low concentrations, while germination and growth were inhibited at high concentrations. Under the condition of laboratory petri dish, the concentration of 50 ~ 400 mg / L inhibited and increased gradually, reaching 90% or more above 400 mg / L. However, the inhibition was only observed at a concentration of 300 mg / L in the greenhouse pots, but less than 100 mg / L.