我国北方水稻品种属粳型,具有产量高,品质好的优点,但也存在着抗稻瘟病差的缺点,尤其是华北地区每年8月下旬至9月上旬有一个低温、阴雨的天气过程,往往诱发穗颈瘟病的发生、蔓延,造成减产,甚至绝收。为了解决这个难题,作者经过几年的努力,把籼稻的抗病基因导入到粳稻中,育成优质、抗 Rice varieties in northern China are japonica type, with the advantages of high yield and good quality, but also has the shortcomings of resistance to rice blast, especially in North China from late August to early September each year, a low temperature, rainy weather process, often Induced the occurrence of panicle blast, spread, resulting in reduced production, or even absolute. In order to solve this problem, after several years of hard work, the author introduced indica rice resistance genes into japonica rice and bred high quality and anti