激光是六十年代出现的一门新技术,它是继χ射线,紫外线,γ—射线,β—射线以及快、慢中子之后,又一种受激跃迁的辐射光,国内把激光应用到农业上是在1973年,我组把激光应用到水稻育种上是从1975年开始的,现在选出激光一号、二号、三号、四号等品系,经初步鉴定,在生产上有一定的应用价值,现将我们选出的激光四号作为杂交水稻的恢复系的情况介绍于后: Laser is a new technology emerging in the 1960s. It is another exciting radiation after x-ray, ultraviolet ray, γ-ray, β-ray and fast and slow neutron. The laser is applied to Agriculture is in 1973, my group to the laser application to rice breeding is from 1975 onwards, and now choose the laser one, two, three, four and other lines, after preliminary identification, in the production of a certain Of the application value, now we selected the laser fourth as a hybrid rice restorer situation introduced in the later: