现在世界上十分重视用激光和化学方法刺激种子从而改善植物质量与产量的办法。资料证明,用氦氖激光照射小麦、黄瓜、西红柿、西瓜和甜瓜的种子后,发芽率平均提高15～20%,产量也上升。比如对麦种照射1～2次后,产量增加20～26%,照3次则可增产45%。西红柿种子经过这种方法处理后,产量增加25%,抗坏血酸含量增加。 Now the world attaches great importance to the use of laser and chemical methods to stimulate the seed to improve plant quality and yield approach. Data prove that with He-Ne laser irradiation of wheat, cucumber, tomato, watermelon and melon seeds, germination rate increased by 15 to 20%, the yield also increased. For example, after wheat is irradiated for 1 or 2 times, the yield will increase by 20-26%, and it will increase by 45% according to 3 times. After the tomato seeds are treated in this way, the yield increases 25% and the ascorbic acid content increases.