Effects of Artificial Light Sources on Growth and Glucosinolate Contents of Hydroponically Grown Kale in Plant Factory
2016
Lee, G.J., Chungbuk Agricultural Research and Extension Service, Choengju, Republic of Korea | Heo, J.W., National Academy of Agricultural Science, Jeonju, Republic of Korea | Jung, C.R., National Academy of Agricultural Science, Jeonju, Republic of Korea | Kim, H.H., National Academy of Agricultural Science, Jeonju, Republic of Korea | Jo, J.S., Chonbuk National University, Jeonju, Republic of Korea | Lee, J.G., Chonbuk National University, Jeonju, Republic of Korea | Lee, G.J., Chungbuk Agricultural Research and Extension Service, Choengju, Republic of Korea | Nam, S.Y., Chungbuk Agricultural Research and Extension Service, Choengju, Republic of Korea | Hong, E.Y., Chungbuk Agricultural Research and Extension Service, Choengju, Republic of Korea
This study was carried out to investigate the effects of artificial light sources on growth, yield, and glucosinolate content of hydoroponically grown Peucedanum japonicum in plant factory. Treatments were given with LED Blue:White(1:1, B:W), LED Red:Blue:White(2:1:3, RBW), and LED Blue:White(1:1)+Florescent lamp(BW+FL). Number of harvested leaves and leaf weight of BW+FL were higher than BW and RBW. BW+FL in leaf length and RBW in leaf width were significant difference with other treatments. Chlorophyll content and 'L' value were not significant difference among the treatments. The 'a' and 'b' value is the lowest in BW+FL. Glucosinolate content was high in order of glucobrassicin, glucoiberin, sinigrin, gluconasturtiin, progoitrin, glucoraphamin, and epiprogoitrin in all treatments, and total glucosinolate content was the highest in RBW treatment. Moisture, crude protein, crude fat, and ash content of leaves were not different among the treatments. In conclusion, this study showed that light caused growth and secondary metabolites synthesis, and we recommend to further study between light and secondary metabolites for increasing functionality.
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