He-Ne激光处理对菘蓝幼苗光合作用的影响

Effects of He-Ne laser treatment seeds of isatis indigotica on photosynthesis of seedlings

摘要: 以菘蓝(isatis indigotica)为实验材料,研究了HeNe激光辐照中药菘蓝种子对幼苗光合色素含量、净光合速率、气孔导度与蒸腾速率、可溶性糖含量及总生物量的影响。研究结果表明,4种处理均能不同程度提高菘蓝幼苗光合色素含量、净光合速率水平、气孔导度与蒸腾速率,可溶性糖含量及总生物量,比较而言,5min的HeNe激光处理效果最好。在此基础上讨论了激光的作用机理及影响幼苗光合作用的机理。

Abstract: The effects of He-Ne laser pretreatment on the seed of isatis indigotica have been studied in the following aspects,such as content of photoproducts and chlorophyll,biomass,net photosynthetic rate,stomatal conductance and water use efficiency.The results indicated four treatments have improved apparently the content of photoproducts and chlorophyll,stomatal conductance,water use efficiency,level of net photosynthetic rate and so on.Compared with the control,5min treatment is the best among four treatments.Moreover,the influence mechanism of laser irradiation on seedling photosynthesis has been discussed on the basis of the above results.