Effects of Artificial Light Sources on Growth and Yield of Peucedanum japonicum Hydroponically Grown in Plant Factory
2016
Lee, G.J., Chungbuk Agricultural Research and Extension Service, Choengju, Republic of Korea | Heo, J.W., National Institute of Agricultural Science, Jeonju, Republic of Korea | Jung, C.R., National Institute of Agricultural Science, Jeonju, Republic of Korea | Kim, H.H., National Institute of Agricultural Science, Jeonju, Republic of Korea | Kim, D.E., Korea National College of Agriculture and Fisheries, Jeonju, Republic of Korea | Nam, S.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 and yield of hydroponically grown Peucedanum japonicum in plant factory. Treatments were composed with; florescent lamp(FL) as control, and LED lights; R:B(2:1, RB), R:B:W(2:1:3, RBW), and R:B:G:W(2:1:0.5:3, RBGW). Plant height of RBGW and FL treatments were superior to RB and RBW. Leaf weight of RBW and RB were superior to FL and RBGW. There were no significant difference of leaf length and thickness among the treatments. Lightness of leaves was same tendency with plant height. Total phenolic compound content was the high in order of RB as 105.77mgㆍ100g-1 GE, RBW as 92.52mgㆍ100g-1 GE, FL as 89.08mgㆍ100g-1 GE, and RBGW 82.00mgㆍ100g-1 GE. Total flavonoids were not detected in all treatments. Vitamin C content was the highest in RB and the lowest in FL. Total dietary fiber were the highest in FL and the lowest in RBGW. There was no significant difference cystein and methionine contents among the treatments. Concludely, yield, total phenolic compounds, and vitamin C content was high in RBW and RB. We reached conclusion that RBW is best artificial light source considering yield, functionality and eye fatigability when work. We recommend to further study LED pulse and duty rates for increasing functionality.
显示更多 [+] 显示较少 [-]