Abstract

This study was conducted in order to evaluate the Allelopathic effects of the aqueous extract of Haloxylon articulatum on seed germination of Triticumae stivum, Hordeum vulgane, Zea mays, and Medicago sativa. The treatments included 100%, 50% and 25% aqueous extracts along with water as a control. One-way ANOVA test was adopted to examine the effect of these treatments on germination rate. The results showed that seed germination of all species decreased by increasing extract concentration. The highest and lowest seed germination was be longed to control and 100 % extract respectively. Generally, most significant effect appeared on Hordeum vulgane. and Medicago sativa. while the least affect appeared on Zea mays.