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Geoffrey Weaver and Marc W. van Iersel

., 2019 ). Dimmable LED lights can be interfaced with quantum sensors and control systems, allowing for adaptive lighting control ( van Iersel and Gianino, 2017 ). With adaptive lighting, supplemental light is provided so that the PPFD of sunlight and

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Geoffrey Weaver and Marc W. van Iersel

early season production can be reduced by 24% for Petunia × hybrida ‘Daddy Blue’ and 37% for Impatiens walleriana ‘Super Elfin XP Violet’ using an adaptive lighting control approach that accounts for crop light use efficiency. Thus, understanding

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Claudia Elkins and Marc W. van Iersel

precisely controlled and programmed to respond to environmental parameters (e.g., sunlight) in real time ( van Iersel and Gianino, 2017 ; van Iersel et al., 2016 ; Weaver et al., 2019 ). Our adaptive lighting control system measures the PPFD of the

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Zhengnan Yan, Long Wang, Jiaxi Dai, Yufeng Liu, Duo Lin, and Yanjie Yang

, G. van Iersel, M.W. 2020 Longer photoperiods with adaptive lighting control can improve growth of greenhouse-grown ‘Little Gem’ lettuce ( Lactuca sativa ) HortScience 55 4 573 580 Wei, H. Zhao, J

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Marc W. van Iersel and David Gianino

. 5 ), without an interactive effect between the duty cycle and sunlight. This illustrates that the adaptive lighting control method does not provide additional PPF more efficiently; instead, it provides additional light specifically when ambient