论文部分内容阅读
2010—2015年,作者连续6年对浙江省主要甜、糯玉米品种纹枯病发生情况进行了调查,并对抗病品种和防治药剂进行了筛选。调查发现,浙江省春播甜、糯玉米纹枯病发生严重。相同年份甜玉米和糯玉米纹枯病发生情况无显著差异,但年际间有显著差异。抗性筛选试验发现了13个甜玉米品种和8个糯玉米品种抗性水平在中抗与抗之间,无高抗品种。药剂筛选试验发现18.7%丙环·嘧菌酯悬乳剂、25%嘧菌酯悬浮剂和300 g/L苯甲·丙环唑乳油对纹枯病防效较好,在玉米拔节期使用可有效控制后期纹枯病为害,显著增加产量。
From 2010 to 2015, the author investigated the incidence of sheath blight of sweet and waxy maize varieties in Zhejiang province for six consecutive years, and screened the resistant varieties and control agents. The survey found that Zhejiang Province sowing sweet, waxy corn sheath blight serious. There was no significant difference in the occurrence of sheath blight between sweet corn and waxy corn in the same year, but there was a significant difference between years. The resistance screening test showed that the resistance levels of 13 sweet corn varieties and 8 waxy corn varieties were between medium resistance and anti-resistance, and no high resistant varieties. Pharmacological screening tests showed that 18.7% propoxypyr azoxystrobin emulsion, 25% azoxystrobin suspension and 300 g / L benzopirone EC had good control effect on sheath blight and were effective at jointing stage Control late sheath blight damage, significantly increase production.