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用0．1％、0．3％、0．5％、0．7％和0．9％的硫酸二乙酯处理向日葵后，其发芽势、发芽率、出苗率、幼苗高度和细胞分裂指数均随着浓度增加而减小，染色体畸变率随浓度增加而提高。以平均苗的株高略高于对照苗株高的一半为指标，0．3％是向日葵较适宜的处理浓度。
After the sunflower was treated with 0.1%, 0.3%, 0.5%, 0.7% and 0.9% diethyl sulfate, its germination potential, germination rate, germination rate, seedling height and cell division index All decreased with the increase of the concentration, and the rate of chromosome aberration increased with the increase of the concentration. The average seedling height slightly higher than the control plant height of half as an indicator, 0.3% is the sunflowers more appropriate treatment concentration.