Journal of Tianjin Agricultural University ›› 2015, Vol. 22 ›› Issue (1): 33-35.

• Orginal Article • Previous Articles     Next Articles

Effects of Red and Blue Light with Different Ratios on Growth of Cherry Tomato Seedlings

LIU Shao-mei1, WANG Li-juan1, *, KIRIIWA Yoshikazu2   

  1. 1. College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin 300384, China;
    2. Faculty of Agriculture, Shizuoka University, Shizuoka 422-8529, Japan
  • Received:2014-11-20 Published:2015-03-31

Abstract: The effects of LED (light emitting diode) with 30% R (red light)+70% B (blue light)and 70% R+30% B light ratios on growth and photosynthetic characteristics of cherry tomato seedlings were studied compared with the control group with 50% R+50% B. The results show that under the conditions of 70% R+30% B, the plant height, leaf area, fresh and dry weights, chlorophyll content and photosynthesis were all the maximum and significantly higher than those of 30% R+70% B and the control. Under the conditions of 30% R+70% B, the plant height, chlorophyll content and leaf area were the lowest, while the stem diameter was significantly higher than that of others. It is concluded that 70% R+30% B was better for the growth of cherry tomato seedlings.

Key words: cherry tomato (Lycopersiconesculentum Mill), red and blue light, seedling

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