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

ACTA HORTICULTURAE SINICA ›› 2005, Vol. 32 ›› Issue (3): 420-425.

• 研究论文 • Previous Articles Next Articles

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

Pu Gaobin¹;Liu Shiqi¹;Liu Lei¹;Ren Lihua²

(¹Horticultural College of Shandong Agricultural University, Tai'an 271018, China;² The Jining Academy of Agricultural Science, Jining 272400, China)

Received:2004-11-17 Revised:2005-01-08 Online:2005-06-25 Published:2005-06-25

Abstract

Abstract:

Effects of different light qualities (blue light, green light, yellow light, red light and white light) on the growth and physiological characteristics of tomato seedlingswere studied. The results showed that under red light the drymatter accumulation, leaf area, chlorophyll content, photosynthetic rate, soluble sugar
content and total sugar contentwere allmaximalwhile the chlorophyll a /b ratio and total nitrogen content were lowest compared with the other treatments. The stem diameter, leaf area, root activity and photosynthetic rate of tomato seedlingswith blue lightwere higher than that ofwhite light. The healthy index of the seedling treated by blue lightwasmaximal, and the red light treatment was the second. It is concluded that blue light or red light treatment could accelerate the growth of tomato seedlings, and benefit the breeding of healthy seedling. The blooming was early and the yield was imp roved obviously by blue light treatment.

Key words: Tomato, Seedling, Light quality, Growth, Physiological characteristics

CLC Number:

S 64112

Pu Gaobin;Liu Shiqi;Liu Lei;Ren Lihua. Effects of Different Light Qualities on Growth and Physiological Characteristics of Tomato Seedlings[J]. ACTA HORTICULTURAE SINICA, 2005, 32(3): 420-425.

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

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