The Evaluation of Allelopathic Effects of Verbascum cheiranthifolium Boiss. var. asperulum (Boiss.) Murb. and Salvia limbata C. A. Mey. Extracts on Zea mays L. and Portulaca oleraceae L. Seed Germination

There is a need for studies on allelopathy, which is an anternative way of fighting, instead of herbicides and t heir harmful effects on environment. For this purpose, water and methanol extracts of Verbascum cheiranthifolium var. asperulum and Salvia limbata taxa were used to determine allelopathic potential. The effects of Verbascum cheiranthifolium var. asperulum and Salvia limbata extracts on seed germination of Portulaca oleraceae L. (purslane) and Zea mays L. (corn) were evaluated. Radicle-plumule lengths and germination percentages of corn and purslane were decreased with increased concentrations of water and methanol extracts onseeds. With more detailed and precise future studies, these extracts may be suggested as a natural herbicide