Artificial light sources for production of greenhouse plants

ZHOU Guo-quan; XU Yi-qing; FU Shun-hua; WU Jia-sen; ZHENG Hong-ping

Volume 25 Issue 6

Dec. 2008

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ZHOU Guo-quan, XU Yi-qing, FU Shun-hua, et al. Artificial light sources for production of greenhouse plants[J]. Journal of Zhejiang A&F University, 2008, 25(6): 798-802.

Citation:

ZHOU Guo-quan, XU Yi-qing, FU Shun-hua, et al. Artificial light sources for production of greenhouse plants[J]. Journal of Zhejiang A&F University, 2008, 25(6): 798-802.

Artificial light sources for production of greenhouse plants

1.
School of Sciences，Zhejiang Forestry College，Lin’an 311300，Zhejiang，China;

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Corresponding author: ZHOU Guo-quan
Publish Date: 2008-12-20

Abstract

Light is the energy source for photosynthesis in plants with chlorophyll a absorbing red light （600 － 700 nm） and chlorophyll b absorbing blue light（400 － 520 nm）. Light is also the signal source of photomorphogenesis in plants. Red light can also reduce gibberellin（GA） content，which minishes internode length and plant height；however，far red light（700 － 800 nm） can have the opposite affect and enhance GA. Based on the light demand of greenhouse plants，characteristics and problems with traditional artificial light sources presently used in a greenhouse were analyzed and showed that as an artificial light source，the light emitting diode （LED） had superiority over other artificial light sources. Subjected to limited photometric brightness from an LED，an LED light source can be assembled to satisfy light demands for the natural growth of plants. Using an LED light source，plantlet cultivation has been successfully performed in vitro. As to the illuminative circumstances，however，there is a prodigious discrepancy between a plantlet in vitro and a greenhouse plant. Therefore，LED assembled light sources that are specially applied in the greenhouse should be further developed. ［Ch，32 ref.］
- agricultural engineering,
- greenhouse plant,
- artificial light source,
- LED light source,
- photosynthesis,
- photomorphogenesis

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Artificial light sources for production of greenhouse plants

1. School of Sciences，Zhejiang Forestry College，Lin’an 311300，Zhejiang，China;

Corresponding author: ZHOU Guo-quan

Publish Date: 2008-12-20

Key words:

Abstract: Light is the energy source for photosynthesis in plants with chlorophyll a absorbing red light （600 － 700 nm） and chlorophyll b absorbing blue light（400 － 520 nm）. Light is also the signal source of photomorphogenesis in plants. Red light can also reduce gibberellin（GA） content，which minishes internode length and plant height；however，far red light（700 － 800 nm） can have the opposite affect and enhance GA. Based on the light demand of greenhouse plants，characteristics and problems with traditional artificial light sources presently used in a greenhouse were analyzed and showed that as an artificial light source，the light emitting diode （LED） had superiority over other artificial light sources. Subjected to limited photometric brightness from an LED，an LED light source can be assembled to satisfy light demands for the natural growth of plants. Using an LED light source，plantlet cultivation has been successfully performed in vitro. As to the illuminative circumstances，however，there is a prodigious discrepancy between a plantlet in vitro and a greenhouse plant. Therefore，LED assembled light sources that are specially applied in the greenhouse should be further developed. ［Ch，32 ref.］

Artificial light sources for production of greenhouse plants

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Related

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