Effects of Light Quality and Photoperiod on Growth and Yield of Cherry Radish Grown under Red Plus Blue LEDs
ZHA Lingyan
LIU Wenke
Abstract：In order to optimize the light condition of plant factory with LED light source for cherry radish growth,the effects of red light to blue light ratio and photoperiod of LED light source on growth and yield of cherry radish grown in environmentally-controlled chamber were investigated.Two light quality treatments of various red light to blue light ratios (1R∶ 1B and 2R∶ 1B) and two photoperiods were designed.The results showed that light quality did not affect true leaf number,leafy chlorophyll content,shoot and root biomass under 12 hours photoperiod.However,under 16 hours photoperiod,2R∶ 1 B treatment improved root diameter,root volume and storage root dry & fresh weight compared with 1R∶ 1B.Under certain light quality,leafy chlorophyll content increased with prolonged with photoperiod.The most optimal light quality and photoperiod for cherry radish was red light to blue light ratio 2R∶ 1B,and 16 hours photoperiod for cherry radish production in plant factory.
Keywords：plant factory with artificial lightred light to blue light ratiolight qualityphotoperiodroot vegetableyield
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 83-86,91 )