【摘要】 利用6mW的He—Ne激光器,每天对烟草叶外植体辐照5′,结果对根和芽最初分化的3天都略有促进作用,但随着辐照的天数增加则有抑制作用。激光辐照10′的不管对根的分化或芽的分化,一开始就表现有明显的抑制作用。更多还原

【Abstract】 The explauts of tobacco leaves were irradiated with 6 mW He-Ne la-ser for 5 minutes. The result shows that roote and shoot have been accelerated sli-ghtly in first differentiation for 3 days,but with the increasing of the irradiated da-ys, their growth has been restained. Whether to the differentiation of root or to-the differentiation of the shoot, it shows obvious restained effect in irradiation of laser for 10 minutes.更多还原