Allelopathic potential of mangrove plants (Avicennia marina, Aegiceras corniculata and Bruguiera gymnorrhiza).

摘要

We investigated the allelopathic potential of volatiles and soils of 3 mangrove species (Avicennia marina, Aegicerax corniculata [Aegiceras corniculatum] and Bruguiera gymnorrhiza) on the germination and early growth of radish (Raphanus sativus) and lettuce (Lactuca sativa). The volatiles of these mangroves species at various concentrations reduced the germination and seedling growth of the test crops. The soil leachates drastically decreased (60% of control) root and seedling elongation, when activated carbon (with high affinity to adsorb the organic compounds) was added. The roots of the test species were most sensitive to allelochemicals. The results showed that these mangrove species were allelopathic.