【摘要】 <正> 激光作为育种手段已被应用了多年并且产生了许多良好的效果。但在这个领域中仍有许多具体问题有待于探索,如对某种作物或品种应用何种激光、什么剂量使其向人们预期的方向发展等等。我们以氦-氖激光为光源对蕃茄的两个品种的种子进行了不同功率密度、不同时间更多还原

【Abstract】 Irradiating tomato seeds with He-Ne laser at different doses showed the following results. When the power density was about 0.02W/cm2 and the irradiation period was aruond 6 minutes, the germination of seeds and the growth of seedling were the best, the isoen-zyme activity was the strongest and the coll division of root tip cells were obviously inereased.更多还原