Abstract
In northern latitudes, supplemental lighting is utilized to increase the photosynthetic daily light integral in greenhouses during the winter months, which can fall as low as 1–5 mol m−2 d−1. Traditionally, supplemental lighting has been provided by high-intensity discharge (HID) lamps, but light-emitting diode (LED) technologies are now available for many greenhouse applications. The use of LEDs for supplemental lighting can be beneficial because wavelengths of light can be selected for applications such as the control of plant growth, development, morphology, and leaf color. However, delivering these precise wavelengths at moderately low intensities with ambient light already present in the greenhouse may prove ineffective at eliciting desired morphological characteristics. Regardless, LEDs have proven to be a viable option to provide supplemental lighting in the many controlled environments.
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Craver, J.K., Lopez, R.G. (2016). Control of Morphology by Manipulating Light Quality and Daily Light Integral Using LEDs. In: Kozai, T., Fujiwara, K., Runkle, E. (eds) LED Lighting for Urban Agriculture. Springer, Singapore. https://doi.org/10.1007/978-981-10-1848-0_15
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DOI: https://doi.org/10.1007/978-981-10-1848-0_15
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