Allelopathic Effects of Aqueous Extract from Salvia officinalis L. on Seed Germination of Barley and Purslane

ABSTRACT: This study reports on the effect of aqueous extract taken from the aerial parts of Salvia officinalis L., on seeds germination of barley (Hordeum vulgare.) and purslane (Portulaca oleracea) experimentally and in a quiet accidentally frame of 5 treatments and 4 replications. The treatments of the experiment included aqueous extract of S. officinalis L. (in concentrations of 6, 12, 25 and 50 percent) and distilled water (control). The results showed the strong allopathic effect of the extract of S.officinalis L. on germination of barley and Portulaca oleracea seeds in such a way that the statistical comparison indicates the reduction of germination percentage of seeds in treating the aqueous extracts in comparison with control in the level of 5 percent.