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Neil O. Anderson, Vincent Fritz, Charlie Rohwer, Steven Poppe, Barbara E. Liedl, Shengrui Yao, Patricia Johnson, Judith Reith-Rozelle, Lee Klossner, and Neal Eash

greenhouse to produce vegetative shoots (long days, 0800 to 1600 h supplied by 400-W high-pressure sodium lamps + 2200 to 0200 hr night interruption; 18.5/22.0 °C night/day). Clonal ramets of the new cultivar were first taken by stem cuttings in St. Paul

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

Specialty crop growers have typically used high-pressure sodium lamps for supplemental lighting and incandescent and compact fluorescent lamps for photoperiodic lighting in greenhouses. In plant propagation facilities for tissue culture and research

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Gary W. Stutte

light emitting diodes and high-pressure sodium lamps have comparable growth, morphology, gas exchange, and post-transplant performance HortScience 48 428 434 Downs, J. 1994 History and applications in controlled environments. Intern. Lighting in

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Ryan M. Warner

on capillary matting in a greenhouse at 23 °C under a 16-h photoperiod, provided by ambient irradiance plus 85 ± 15 µmol·m −2 ·s −1 photosynthetic photon flux density (400–700 nm) at plant level provided by high-pressure sodium lamps when outdoor

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Neil O. Anderson, Peter D. Ascher, Vincent Fritz, Charlie Rohwer, Steven Poppe, Shengrui Yao, Patricia Johnson, Barbara E. Liedl, Judith Reith-Rozelle, Lee Klossner, and Neal Eash

vegetative shoots from the rhizomes (long days, 0800–1600 hr supplied by 400 W high-pressure sodium lamps + 2200 to 0200 hr night interruption; 18.5/22.0 °C day/night). In 1996, clonal ramets (asexual stem tip cuttings) of the new hybrid were taken in St

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Neil O. Anderson, Esther Gesick, Peter D. Ascher, Steven Poppe, Shengrui Yao, David Wildung, Patricia Johnson, Vincent Fritz, Charlie Rohwer, Lee Klossner, Neal Eash, Barbara E. Liedl, and Judith Reith-Rozelle

transplanted and grown under greenhouse conditions (lat. 45° N; St. Paul, MN) for 4 weeks vegetative growth (long days, 0800 to 1600 hr supplied by 400-W high-pressure sodium lamps + 2200 to 0200 hr night interruption; 18.5/22.0 °C day/night) followed by 6

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Brian R. Poel and Erik S. Runkle

of seedlings by increasing leaf expansion and whole-plant net assimilation Environ. Expt. Bot. 136 41 49 Poel, B.R. Runkle, E.S. 2017 Seedling growth is similar under supplemental greenhouse lighting from high-pressure sodium lamps or light

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Tonghua Pan, Juanjuan Ding, Gege Qin, Yunlong Wang, Linjie Xi, Junwei Yang, Jianming Li, Jing Zhang, and Zhirong Zou

a CO 2 infrared (IR) gas analyzer (JSA5-Gas; Shenzhen, China). Supplementary light was provided by high-pressure sodium lamps (HPS1000; Zhuhai Meiguangyuan, Co. Ltd., Zhushai, China) (see Supplemental Fig. 1 for spectral distribution). These were

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Chase Jones-Baumgardt, David Llewellyn, Qinglu Ying, and Youbin Zheng

of light intensity on stem and leaf growth in broad bean seedlings J. Expt. Bot. 14 142 152 Craver, J.K. Boldt, J.K. Lopez, R.G. 2019 Comparison of supplemental lighting provided by high-pressure sodium lamps or light-emitting diodes for the

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Christopher J. Currey, Diane M. Camberato, Ariana P. Torres, and Roberto G. Lopez

photoperiod (0600–2200 hr ) consisting of natural daylengths with supplemental lighting. High-pressure sodium lamps delivered a supplemental photosynthetic photon flux ( PPF ) of 100 μmol·m −2 ·s −1 at plant height [as measured with a quantum sensor (LI