Abstract:
This study was conducted in the laboratory at Botany Department, Faculty of Arts and Sciences Tocra,
University of Benghazi to investigate the effect of Allelopathy of aqueous extracts of leaves, flower and fruits of
Hyoscyamus muticus L. Rich at concentrations of 0.5, 5, and 50% on seed germination and seedling
development of Radish (Raphanus sativus L.). The results showed a difference in the Allelopathic effects on
seed germination and development of seedling, indicating that extracts of leaves, flowers and fruits have an
effect on reducing the percentage of germination and growth of the radical, especially at the concentration of
50% where germination was very low and sometimes completely inhabited. At 5% concentration the effect was
moderate while at 0.5% the effect was positive. The results also showed that the leaves extract had a higher
effect compared to the effect of flowers and fruits extracts
