我们用13年的时间进行了稻种资源的多抗性产地考察、征集、鉴定和利用的研究。现将结果报告如下。 一、抗性鉴定技术及结果 要给抗病育种提供合格的抗源和抗性品种,必须依靠科学的抗性筛选方法。六十年代以前,各国抗稻瘟病育种工作者对抗性的鉴定和筛选仅限于个别地区和实验室, We spent 13 years on the study of multi-resistant rice origin of origin, collection, identification and use of research. The results reported below. First, resistance identification techniques and results To provide qualified resistance and breeding varieties resistant to resistance, we must rely on scientific resistance screening methods. Prior to the 1960s, the identification and screening of confrontational resistance against blast-resistant workers in various countries was restricted to a few areas and laboratories,