Effects of Different Concentrations of Leaf Aqueous Extract of Tribulus terrestris L. on the Germination of Economic Seeds

Abstract

Tribulus terrestris herb possesses various biological activities due to the active substances in its composition. This study aimed to evaluate the potential effect of the aqueous extract of the leaves of Tribulus terrestris L. on Triticum aestivum, Hordeum vulgare, and Vici faba seeds under laboratory conditions. The effect of various concentrations (5%, 3%, 1%, and 0.5%) on germination and seed growth was observed and compared to the control (distilled water). The concentrations of the aqueous extract had an allelopathic effect on imbibition, germination rate, radicle length, and plumule length. It was noticed that the rate of inhibition increased with the increasing concentration. Overall, the active substances in the aqueous extract of the leaf of the Tribulus terrestris L. plant had an allelopathic effect that increased with increasing concentration.