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2002—2003年分别在吉林省蛟河市新站镇和梅河口市海龙镇选择抗性不同的当地主栽品种按不同比例搭配种植,进行了控制稻瘟病试验。结果表明:水稻品种混合间栽可有效控制稻瘟病的发生,控病效果主要体现在感病品种上。对感病品种“吉优1号”的控制效果达95 94%,对“丰优301”的控病效果达57 14%和49 21%,对“超产2号”的控病效果达63 59%。选择抗谱不同的品种搭配种植可取得较好的效果。“松粳6号”与“吉优1号”组合,2个品种的致病菌谱完全不同,对感病品种“吉优1号”的控病效果高达95 94%。
In 2002-2003, local cultivars with different resistance selected from Xinzhan Town, Jiaohe City, Jilin Province and Hailong Town, Meihekou City were planted with different proportions to control the rice blast. The results showed that the rice cultivars could effectively control the occurrence of blast in the intercropping system, and the control effect was mainly reflected in the susceptible varieties. The control effect of susceptible variety “Ji You 1” was 95 94%, and the control effect of “Feng You 301” was 57 14% and 49 21% Disease control effect of 63 59%. Anti-spectrum selection of different varieties with planting can achieve better results. The combination of “Songjing 6” and “Jiyou 1” showed a completely different pathogenicity spectrum of the two cultivars. The control effect of the susceptible cultivar “Ji You 1” was as high as 95 94% .