激光是一种受激跃迁辐射,具有能量高度集中、单色性和方向性好等特点。对于生物有机体,激光辐射能导致产生光效应、热效应、次生冲击波、电磁场效应等。因而,同样波段的激光与普通光对生物体所引起的效应也就不尽相同,它可能比普通光导致发生更大的突变效果。我们自1973年初开始,曾先后应用氩离子激光器的蓝绿光(波长4880埃及5145埃)和CO_2分子激光器的红外光(波长10.6微米和9.6微米)对水稻进行辐射诱变育种试验,产生了一些诱变效果和获得某些经济性状的遗传性变异(已有报导)。目前,正在进行第六代(L_6)和第四代(L_4)的继续选育工作。经过两年多的试验 Laser is a stimulated transition radiation, with a high concentration of energy, monochromatic and directional characteristics. For biological organisms, laser radiation can lead to light effects, thermal effects, secondary shock waves, electromagnetic field effects. Therefore, the same band of laser and ordinary light on the organism caused by the effect will be different, it may cause more than normal light mutation effect. Since the beginning of 1973, we have carried out radiation-induced mutation breeding experiments using blue-green light (wavelength: 4880, 5145 angstroms) and infrared laser (10.6 and 9.6 microns) of CO 2 laser, Mutagenesis effects and genetic variants of certain economic traits (as reported). Currently, the sixth generation (L_6) and fourth generation (L_4) continue breeding. After more than two years of testing