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在棉花枯萎病重病地,改种一年薄荷之后连续种植棉花九年,枯萎病仍未再发展起来。根据这一现象,笔者在进行了薄荷根泌物对土壤棉花枯萎病菌抑制作用和作用机理的初步研究之后,又开始进行薄荷草粗制剂及其提取物——薄荷油对棉花枯萎病菌抑制作用的温室盆栽试验研究,以期探讨药用植物薄荷在棉花枯萎病的防治中,除轮作之外其他可能应用的方面。现将得到的初步结果报告如下。一、材料与方法将严重感染棉枯萎病菌的人工病土(在适宜条件下,一个月可致感病棉花品种80%幼苗感病),经薄荷草粉碎物或薄荷油用不同方法处理之后作为不同试验处理,以未径处理的人工病土为对照。每处理3或4次重复,即将同一处理的病土分别装入3或4个
In the serious case of cotton wilt, nine years of continuous cotton cultivation after a year of mint replanting, the blight has not yet developed. According to this phenomenon, the author conducted a preliminary study on the inhibitory effect and mechanism of peppermint root exudates on the soil Fusarium oxysporum f. Sp., And then started to study the inhibitory effect of peppermint oil and peppermint oil against Fusarium oxysporum f. Greenhouse pot experiment study in order to explore the medicinal plant peppermint cotton in the prevention and treatment of Fusarium wilt, in addition to the rotation of the other possible applications. The preliminary results that will now be reported are as follows. First, the material and method Severe infection of artificial pathogen of Fusarium oxysporum f. (Under appropriate conditions, susceptible cotton varieties infected 80% of seedlings susceptible), after mint grass milled or peppermint oil treated with different methods as Different experimental treatments, with no pathological treatment of artificial soil as a control. Each treatment 3 or 4 times repeated, the soil will be the same treatment were loaded 3 or 4