Allelopathic effects of aqueous extract of Zhumeria majdae on seed germination of seven species of vegetables

In this investigation, effects of aqueous extractfrom leaves of Zhumeria majdae on seed germination of Lycopersicon esculentum, Lactuca sativa, Brassica oleracea, Allium porrum, Raphanus sativus, Allium cepa, Lipidium sativum were studied. Aqueous extract from leaves of Zhumeria majdae inhibited seed germination. In the Lipidium sativum and Brassica oleracea, seed germination rate was reduced to zero. Statistically, In percentage of seed germination, there were more significant differences between aqueous extract and control in Allium cepa, Lipidium sativum and Brassica oleracea. There were significant differences in Lactuca sativa and Allium porrum and no significant differences were found in Lycopersicon esculentum and Raphanus sativus. In speed of seed germination, there were more significant differences between aqueous extract and control in Lycopersicon esculentum, Lactuca sativa, Brassica oleracea, Allium porrum, Allium cepa and Lipidium sativum and significant differences in Raphanus sativus.