Effects of Different LED Supplemental Lighting on Growth of Tomato and Cucumber Seedlings
LI Yamin
ZHENG Yinjian
TAN Xin
PAN Yue
LIU Houcheng
Abstract：The effects of light quality on the growth of tomato and cucumber seedlings were studied by different Light Emitting Diode ( LEDs) supplemental lighting ( red 630 ~660nm, orange 590 ~610nm, blue 450~460nm, green 520~540nm, 12 h, 120μmol·m-2·s-1). The results showed that, under the red and blue supplemental lighting treatment, leaf area, seedling index, concentration of photosynthetic pigment, fresh weight and dry weight of plant and shoot in tomato seedling were significantly higher than those of other treatments. Under the red and green supplemental lighting treatment, plant height and stem diameter of tomato seedling significantly increased. Under supplemental lighting treatments, the plant height significantly decreased while seedling index significantly increased in cucumber seedling, especially under red and blue lighting treatment. The chlorophyll concentrations in cucumber seedling decreased under red, orange and blue LED supplemental lighting.
Keywords：light qualitytomatocucumberseedling growthphotosynthetic pigment
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 68-71 )