بررسی تاثیر دگرآسیب گیاه دارویی رزماری (Rosmarinus officinalis) بر برخی صفات جوانه‌زنی و رشد اولیه جودره (Hordeum spontaneum) و گندم

Environmental pollution and herbicide resistance in weeds resulted in considering biological weed control by researchers. Wild barley (Hordeum spontaneum) is one of the important annual weeds of wheat field in Iran. In order to study the allelopathic effect of different concentrations of aqueous extract (0, 5, 10, 20, 40, and 60%) of rosemary (Rosmarinus officinalis) on germination, radicle and plumule growth of wild barley and wheat, a factorial experiment was conducted based on completely randomized design with three replications. Results showed that the effect of rosemary extract was significant on germination percentage and rate, radicle and plumule length, radicle and plumule dry weight of treated plants. The inhibitory effect of rosemary increased as increasing the extract concentration. Using concentration higher than 10% resulted in more reduction of radicle and plumule length and weight of wild barley than wheat. Wild barley was more susceptible to rosemary extract than wheat.