Effects of Different Light Qualities on Growth and Physiological Characteristics of Tomato Seedlings

doi:10.7668/hbnxb.2015.05.024

Abstract

Abstract: Using self-made LED light source the experiment study the effect of different light quality and light quality combination on morphogenesis and physiological and biochemical characteristics of tomato.The experiment accumulates data for application of LED light source in horticulture planting.The results showed that,the Blue and Green treats were all beneficial of improving the plant height of tomato seedling except the light quality treats were all beneficial of improving the stem diameter and fresh weight and dry weight and of tomato seedling except Red and Yellow treat and the healthy index of RB3 and RBP2 were the highest.They can be looked as the best light for growing tomato healthy seedling.All treats didn't improve the activity of CAT.The light quality treats RBG2 and Y and RB4 and RBP1 and RBG1 and RBP2 were all beneficial of improving the activity of POD.The light quality treats RBY1 and RB5 and RBY2 and RBP2 were all beneficial of improving the activity of SOD.Comprehensive evaluation,RBP2 can be looked as the best light for improving the activity of enzyme.

Key words: Light qualities, Tomato seedling, Growth, Physiological characteristics

CLC Number:

S641.01

LIU Zhen-wei, SUN Li, FANG Ting-ting, LIU Hui-chao, JIA Wen-qing. Effects of Different Light Qualities on Growth and Physiological Characteristics of Tomato Seedlings[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2015, 30(5): 141-145. doi: 10.7668/hbnxb.2015.05.024.

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