Abstract：LED light source was used to irradiate cherry radish (Raphanus sativus L. var. radculus pers) in an artificial climate room with controllable temperature and photoperiod in order to investigate the effects of different proportions of LED red light and blue light combinations on the growth and development of cherry radish seedlings. The results showed that different light quality treatment had a significant influence on the cherry radish seedlings, pure blue light and a high proportion of blue light inhibited the root elongation, root surface area and root volume. Furthermore, red and blue 1∶ 1 increased shoot fresh weight, and red and blue 1∶ 3 was benefit to the growth and development of the root. The irradiation blue light significantly increased the chlorophyll content of leaves, and the effect was more significant with higher blue light ratio. In short, different red light and blue light combinations could significantly control the growth and development of cherry Turnip Sprouts.
2018, Vol. 31 
