Benaki Phytopathological Institute, Department of Weed Science, Integrated Weed Management and Plant Growth Regulators Lab., 8 St. Delta street, GR-145 61, Kifisia, Athens, Greece.
*Correspondence Author: E-Mail: htravlos@in.gr
In Petri plate bioassays, the effects of aqueous extracts of Heliotropium europaeum plant parts (leaf, inflorescence, root) were studied on the early seedlings growth of oat, bean and duckweed. The inflorescence extracts inhibited the seedling growth of all test species more than other parts of heliotrope. The soil assays showed that root exudates released into the soil reduced seedling growth of bean. The allelopathic activity of H. europaeum could be exploited in future studies, to identify and isolate the allelochemicals, as models for future herbicides for integrated weed management.
Allelopathy, Avena sativa, bean, bioassay, duckweed, Heliotropium europaeum, oat, Phaseolus vulgaris, Spirodela polyrhiza
