研究作物的辐射敏感性,是作物辐射育种研究的基础工作。作者曾就粟对γ射线照射的反应,初步分析了粟的辐射敏感性和临界剂量,特提出以供粟辐射育种工作者参考。试验材料选用的是张家口地区早、中、晚熟不同类型及绿、黄、紫等不同苗色的品种,在播种前用钴~(60)γ、射线进行照射。照射剂量为一万仑、二万仑、三万仑、四万仑。剂 Studying the radiation sensitivity of crops is the basic work of crop radiation breeding research. The authors have on millet on the γ-ray irradiation response, preliminary analysis of the millet radiation sensitivity and critical dose, especially for the reference of millet radiation breeding workers. The test materials used were different types of green, yellow and purple seedlings of early, middle and late maturity in Zhangjiakou area, and irradiated with cobalt ~ (60) γ and radiation before sowing. Irradiation dose of 10,000 Lun, 20,000 Lun, 30,000 Lun, 40,000 Lun. Agent