حمیرا سلیمی - Researcher, Weed Research Department, Iranian Research Institute of Plant Protection, P.O. Box. ۱۴۵۴, Tehran ۱۹۳۹۵, Iran (E-mail: hom_salimi@yahoo.com)

Seed dormancy of wild mustard (Sinapis arvensis) could be changed through seed storing. The seeds were collected from four regions: Fars, West Azarbaijan, Khuzestan and Mazandaran provinces. They were stored at three different temperatures (-۱۸, +۳ and ۲۲-۲۵°C) for ۳, ۶, ۹, ۱۲ and ۱۵ months. They were then put under suitable condition for germination. Mean germination time for seeds was measured during ۶, ۱۲ and ۱۸ months storage. 

Secondary dormancy, Seed viability, Sinapis arvensis, Iran