孜然提取物对几种病菌生物活性的初步研究

以孜然种子丙酮提取物为材料,测定了其对几种病菌的生物活性。结果表明,在供试质量浓度为0.05g/mL时,粗提物对所有供试真菌菌丝生长抑制率均大于75%;在供试质量浓度为0.1g/mL时,对稻瘟病菌孢子萌发抑制率大于90%;在供试质量浓度为0.04g/mL时,盆栽试验显示其对白菜黑斑病、稻瘟病及黄瓜霜霉病的保护作用均达60%以上,对稻瘟病治疗作用达89.5%以上。孜然作为植物源杀菌剂值得进一步研究。

Study on bioactivity of Cuminum cyminum extract to several kinds of Fungi

The bioactivity of Cuminum cyminum acetone extract was tested with several kings of fungi.The results of separate cultivating condition showed that the extract had more than 75% inhibiting rates to the hypha growth of all tested fungi under the concentration of 0.05 g/mL,and had more than 90% inhibiting rates to the spore germination of Pyricularia grisea under the concentration of 0.1 g/mL.The results of pot test indicated that the extract had more than 60% protective efficacy to the Black rot of Chinese cabbage,Rice blast,Cucumber downy mildew and had 87.5% therapeutic efficacy to the Rice blast under the concentration of 0.04 g/mL.