生态环境学报2011，Vol.20Issue(8)：1235-1237,3.
入侵物种三裂叶蟛蜞菊挥发物对杂草叶绿素含量的影响
Effects of allelopathy of Wedelia trilobata L.on chlorophyll content of the tested plants
摘要
Abstract
The effect of the volatiles and essential oils of Wedelia trilobata (L.) on the leaf chlorophyll content of three tested plants were investigated to reveal the mechanism of allelopathy in south China. The results showed that the leaf chlorophyll content of all the three tested plants-Echinochloa cntsgalli (L.), Bidens pilosa (L.) and Celosia argentea (L.) grown in the existence of fresh W. Trilobata (L.) (250.0 g), or in the containers with W. Trilobata (L.) essential oils (0.10 mL, 0.25 mL and 0.50 mL) were greatly reduced. Compared to the control, the leaf chlorophyll content of E. Crusgalli decreased by 56.5%, 41.9%, 49.6% and 64.9%, respectively; those of B. Pilosa reduced by 6.45%, 4.35%, 15.3% and 24.8%, respectively; and those of C. Argentea decreased by 53.3%, 17.6%, 33.3% and 71.5%. These findings indicated that volatiles and essential oils of W. Trilobata have allelopathic potentials which inhibit the leaf chlorophyll content of receiver plants. The mechanism needs further studying.关键词
三裂叶蟛蜞菊/挥发物/化感作用/叶绿素/分光光度法Key words
Wedelia trilobata (L.)/ volatiles/ allelopathy/ chlorophyll/ spectrophotometry分类
化学化工引用本文复制引用
江贵波..入侵物种三裂叶蟛蜞菊挥发物对杂草叶绿素含量的影响[J].生态环境学报,2011,20(8):1235-1237,3.基金项目
揭阳职业技术学院科研课题(JYCKY0708) （JYCKY0708）
广东省教育科研“十一五”规划项目(2010tjk335) （2010tjk335）
