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Xunzhong Zhang and Erik H. Ervin

varieties were placed under artificial ultraviolet-B (70 μmol·m −2 ·s −1 ) provided by three 40-W ultraviolet-B fluorescent lamps (UVB-313; Q-Panel Laboratory Products, Cleveland, OH). This ultraviolet-B intensity has proved appropriate for identifying

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Michael P. Dzakovich, Celina Gómez, Mario G. Ferruzzi and Cary A. Mitchell

select fruits Postharvest Biol. Technol. 86 37 44 Duell-Pfaff, N. Wellmann, E. 1982 Involvement of phytochrome and a blue light photoreceptor in UV-B induced flavonoid synthesis in parsley ( Petroselinum hortense Hoffm.) cell suspension cultures Planta

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Gary W. Stutte

Light-emitting diodes (LEDs) are solid-state semiconductor devices that produce narrow spectrum light when voltage is applied. The use of LEDs in photobiology research was reported in the 1980s and the concept of using LEDs for plant lighting was

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Alexander G. Litvin, Christopher J. Currey and Lester A. Wilson

., 2006 ), air temperature ( Chang et al., 2005 ), and light intensity and duration ( Beaman et al., 2009 ; Chang et al., 2008 ). Traditionally, broad-spectrum lamps such as HPS or metal halide have been used for supplemental greenhouse lighting, but

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Haijie Dou, Genhua Niu, Mengmeng Gu and Joseph Masabni

by substituting green light for partial red and/or blue light HortScience 54 1769 1776 Dou, H. Niu, G. Gu, M. 2019b Pre-harvest UV-B radiation and photosynthetic photon flux density interactively affect plant photosynthesis, growth, and secondary

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Arend-Jan Both, Bruce Bugbee, Chieri Kubota, Roberto G. Lopez, Cary Mitchell, Erik S. Runkle and Claude Wallace

, sole-source electric lighting has typically been used, with fluorescent tubes as the main light source that is occasionally supplemented with incandescent lamps. Supplemental lighting typically requires high intensities (at least 50–100 µmol·m −2 ·s −1

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Chun-hui Shi, Xiao-qing Wang, Xue-ying Zhang, Lian-ying Shen, Jun Luo and Yu-xing Zhang

Plant Physiol. 122 107 116 Christie, J.M. Jenkins, G.I. 1996 Distinct UV-B and UV-A/blue light signal transduction pathways induce chalcone synthase gene expression in arabidopsis cells Plant Cell 8 1555 1567 Dixon, R.A. Paiva, N.L. 1995 Stress

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Mark G. Lefsrud, Dean A. Kopsell and Carl E. Sams

and b absorb wavelengths of light strongly in the red (maximum absorption at 663 and 642 nm, respectively) and blue region (maximum absorption at 430 and 453 nm, respectively) with less absorption occurring in the green wavelengths ( Hopkins and

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ultraviolet-B (UV-B) radiation. It is well known by those trained in biochemistry and spectrophotometric techniques that quartz cuvettes must be used in spectrophotometers for measuring absorbance or transmission of light below 340 nm (UV-B is 280-320 nm

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C. Michael Bourget

expenses (electricity use as well as replacement lamps). Naturally, advances in lighting technology are of great interest to the CEA community for these very reasons. Light-emitting diodes (LEDs) are the most recent lighting technology to enter the CEA