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国外的γ辐射诱变育种,据不完全统计,已经创造出二百多个农作物新品种,并且在计量上,已经普遍采用吸收剂量,并以电离辐射生物效应为计量单位。我国在二十年来的辐射育种实践中,也已育成154个新品种,推度面积达7000万亩。但是,在我国农用γ辐射室中,随处理材料提供的仍是伦琴计测定的照射量(γ),有的育种单位还没有换算成吸收剂量(D)。
According to incomplete statistics, more than 200 new crop varieties have been created in foreign countries. In terms of metrology, absorbed doses have been widely used, and biological effects of ionizing radiation are taken as measurement units. In the practice of radiation breeding in the past 20 years in our country, 154 new varieties have also been bred and the area of pushing reached 70 million mu. However, in China’s agricultural gamma irradiation room, the irradiation dose (γ) determined by the roentgen meter is still supplied with the treated materials, and some breeding units have not yet been converted into the absorbed dose (D).