Allelopathic Effects of Ginger and Turmeric on the Germination of Ipomoea triloba and Avena sterilis

Abstract

Ginger and turmeric are two important cultivated plants that are widely used as spices and for medicinal purposes. In this study, the effects of the juice and water extract obtained from the fresh stems and leaves of these two species after their rhizomes were harvested were investigated on the germination of two important weed species (Ipomoea triloba and Avena sterilis). The study was conducted in laboratory conditions in petri dish experiments. The findings showed that ginger and turmeric extracts reduced the germination of both species in the trial, but I. triloba was more affected and plant juices were more effective than water extract.