Aqueous extracts of stems and leaves from ten varieties of Medicago sativa apparently accelerated seed germination, growth of seedlings and roots of the radish assay plants.

• 结果表明，不同品种的紫花苜蓿茎叶浸提液在适宜浓度下均对萝卜种子的萌发、幼根和幼苗的生长产生明显的促进作用，说明供试的紫花苜蓿品种均存在化感作用；