Effect of 532 nm laser irradiation on Vc content in cabbage seedlings | 532 nm激光辐照对白菜幼苗维生素C含量的影响
2009
Jin Lihong, Changchun University of Science and Technology, Changchun (China), School of Life Sciences andBiotechnology | Shen Bingjun, Changchun University of Science and Technology, Changchun (China), School of Life Sciences andBiotechnology | Liu Junhua, Changchun University of Science and Technology, Changchun (China), School of Life Sciences andBiotechnology
[Objective] The aim of this study was to discuss the feasibility of breeding cabbage with high Vc by 532 nm laser. [Method] With the material of cabbage, the embryo of cabbage seeds was irradiated by frequency doubled Nd:YAG laser with different power densities and time, and the effects of laser mode on functional leaf area, chlorophyll and Vc contents in cabbage seedlings were also studied. [Result] The results showed that functional leaf area and chlorophyll content were related to laser power density and time when laser power density was 2-20 mW/mm2, while the optimal effect was observed at 14 mW/mm2 for 1 min. The content of Vc in cabbage seedlings was related to dosage of laser irradiation when irradiating time ranged from 1 to 5 min, and the optimal effect was observed at 2.8 J (20 mW/mm2, 3 min). [Conclusion] Irradiating the embryo of cabbage seeds with proper irradiation dosage of 532 nm laser can increase its effect on the Vc content significantly.
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