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国外从本世纪研究水稻抗虫性以来,至今已有较大进展:1.筛选出一批主要稻虫的抗源品种;2.育出抗褐稻虱、稻秆蝇、二点黑尾叶蝉、二化螟等丰产品种;3.对抗虫机制、抗性遗传等方面也进行了深入研究。 一、抗源的筛选 各国筛选出的抗源品种如下: (一)抗褐稻虱(国际水稻所鉴定) 属于Bph_1型:Mudgo、Co22、MTU15、IR26、IR28、IR29、IR30、IR34等。 属于bph_2型:ASD7、Ptb18、H105、IR32、IR36IR38、IR40、IR42、CR94-13。 属于Bph_3型:Rathu Heenati,Ptb1川、Ptb19、Kurahoda-rawala、Mathumanihayan。
Since the study of insect resistance in rice from abroad in this century, more progress has been made so far: 1. A number of resistant varieties of major rice pests were screened out; 2. The resistance to brown planthopper, rice fly, Cicada, Chilo suppressalis and other high-yielding varieties; 3. Insect-resistant mechanism, genetic resistance and other aspects have also been studied in depth. First, the screening of anti-source Countries selected anti-source varieties are as follows: (A) against brown planthopper (International Rice Identification) Belongs to Bph_1 type: Mudgo, Co22, MTU15, IR26, IR28, IR29, IR30, IR34 and so on. Belonging to the bph2 type: ASD7, Ptb18, H105, IR32, IR36IR38, IR40, IR42, CR94-13. Belongs to the Bph_3 type: Rathu Heenati, Ptb1 Chuan, Ptb19, Kurahoda-rawala, Mathumanihayan.