论文部分内容阅读
为明确云芝葡聚糖对小麦黄矮病的预防和治疗效果,初步探讨其作用机制,通过室内盆栽及大田试验测定了其对小麦黄矮病的防治效果,并测定了不同浓度处理下小麦防御酶系活性的动态变化。结果表明,室内盆栽试验中云芝葡聚糖对小麦黄矮病具有较好的预防和治疗效果,其中以云芝葡聚糖100、300倍液的预防效果最为理想,防效可达66.67%和65.41%。云芝葡聚糖对田间小麦黄矮病的发生可起到一定的预防作用,其中100和300倍液的防效分别达58.63%和57.59%,保产效果分别达22.91%和22.57%,且相比对照药剂,产量提高10%以上。同时,云芝葡聚糖可诱导小麦快速且显著提高其防御酶活性,是清水对照组的2~5倍。表明云芝葡聚糖可作为免疫调节剂诱导植物自身产生抗病反应,从而起到保护寄主植物的作用。
In order to clarify the preventive and therapeutic effects of dextran-coated dextran on wheat yellow dwarf virus, the mechanism of action was investigated. The control effect on wheat yellow dwarf was determined by pot experiment and field experiment. The effects of different concentrations of wheat Dynamic changes of defensive enzyme activity. The results showed that Yunzhi was able to prevent and treat wheat yellow dwarf virus effectively in indoor pot experiment. The best preventive effect was 100,300 times of Yunzhi dextran, with the control effect reaching 66.67% And 65.41%. Yunzhi dextran could play a preventive role in the occurrence of yellow dwarf disease in field wheat, of which 100 and 300 times control effect respectively reached 58.63% and 57.59%, and the yield-keeping effect reached 22.91% and 22.57% respectively Compared to the control agent, the yield increased more than 10%. At the same time, Yunzhi dextran can induce wheat quickly and significantly increase its defense enzyme activity, is 2 to 5 times the control group. The results showed that Yunzhi dextran could be used as an immunomodulator to induce plants to produce their own disease-resistant response and thus play a role in protecting host plants.