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Overhead supplemental far-red light stimulates tomato growth under intra-canopy lighting with LEDs

標題: Overhead supplemental far-red light stimulates tomato growth under intra-canopy lighting with LEDs
作者: Zhang, YT (Zhang Ya-ting); Zhang, YQ (Zhang Yu-qi); Yang, QC (Yang Qi-chang); Li, T (Li Tao)
來源出版物: JOURNAL OF INTEGRATIVE AGRICULTURE  卷: 18  期: 1  頁: 62-69  DOI: 10.1016/S2095-3119(18)62130-6  出版年: JAN 2019  
Web of Science 核心合集中的 "被引頻次": 0
被引頻次合計: 0
使用次數 (最近 180 天): 7
使用次數 (2013 年至今): 17
引用的參考文獻數: 28
摘要: Far-red (FR) light regulates phytochrome-mediated morphological and physiological plant responses. This study aims to investigate how greenhouse tomato morphology and production response to different durations of FR light during daytime and at the end of day (EOD). High-wire tomato plants were grown under intra-canopy lighting consisting of red (peak wavelength at 640 nm) and blue (peak wavelength at 450 nm) light-emitting diodes (LEDs) with photosynthetic photon flux density (PPFD) of 144 mu mol m(-2) s(-1) at 10 cm away from the lamps, and combined with overhead supplemental FR light (peak wavelength at 735 nm) with PPFD of 43 mu mol m(-2) s(-1) at 20 cm below the lamps. Plants were exposed to three durations of FR supplemental lighting including: 06: 00-18: 00 (FR12), 18: 00-19: 30 (EOD-FR1.5), 18: 00-18: 30 (EOD-FR0.5), and control that without supplemental FR light. The results showed that supplemental FR light significantly stimulated stem elongation thereby resulting in longer plants compared with the control. Moreover, FR light altered leaf morphology toward higher leaf length/width ratio and larger leaf area. The altered plant architecture in FR supplemented plants led to a more homogeneous light distribution inside the canopy. Total plant biomass was increased by 9-16% under supplemental FR light in comparison with control, which led to 7-12% increase in ripe fruit yield. Soluble sugar content of the ripe tomato fruit was slightly decreased by longer exposure of the plants to FR light. Dry matter partitioning to different plant organs were not substantially affected by the FR light treatments. No significant differences were observed among the three FR light treatments in plant morphology as well as yield and biomass production. We conclude that under intra-canopy lighting, overhead supplemental FR light stimulates tomato growth and production. And supplementary of EOD-FR0.5 is more favorable, as it consumes less electricity but induces similar effects on plant morphology and yield.
入藏號: WOS:000454955200007
語言: English
文獻類型: Article
作者關鍵詞: Solanum lycopersicum; far-red light; LEDs; intro-canopy lighting; morphology; yield
KeyWords Plus: OF-DAY RED; PLANT; END; PHOTOSYNTHESIS; RESPONSES; MORPHOLOGY; SPECTRUM
地址: [Zhang Ya-ting; Zhang Yu-qi; Yang Qi-chang; Li Tao] Chinese Acad Agr Sci, Key Lab Energy Conservat & Waste Management Agr S, Minist Agr & Rural Affairs, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China.
通訊作者地址: Li, T (通訊作者),Chinese Acad Agr Sci, Key Lab Energy Conservat & Waste Management Agr S, Minist Agr & Rural Affairs, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China.
電子郵件地址: zhangyating1993@gmail.com; litao06@caas.cn
出版商: ELSEVIER SCI LTD
出版商地址: THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
Web of Science 類別: Agriculture, Multidisciplinary
研究方向: Agriculture
IDS 號: HG4OQ
ISSN: 2095-3119
29 字符的來源出版物名稱縮寫: J INTEGR AGR
ISO 來源出版物縮寫: J. Integr. Agric.
來源出版物頁碼計數: 8
基金資助致謝:
基金資助機構 授權號
National Key Research and Development Program of China 
2017YFB0403902 
Young Elite Scientists Sponsorship Program by the China Association for Science and Technology (CAST) 
2016QNRC001 

This work was supported by the National Key Research and Development Program of China (2017YFB0403902) and the Young Elite Scientists Sponsorship Program by the China Association for Science and Technology (CAST, 2016QNRC001).

開放獲取: Bronze
輸出日期: 2019-08-16

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