LED Lighting in Horticulture

By R. Morrow. 2008

666 citations recorded by the source corpus.

Solid-state lighting based on the use of light-emitting diodes (LEDs) is potentially one of the biggest advancements in horticultural lighting in decades. LEDs can play a variety of roles in horticultural lighting, including use in controlled environment research, lighting for tissue culture, and supplemental and photoperiod lighting for greenhouses. LED lighting systems have several unique advantages over existing horticultural lighting, including the ability to control spectral composition, the ability to produce very high light levels with low radiant heat output when cooled properly, and the ability to maintain useful light output for years without replacement. LEDs are the first light source to have the capability of true spectral composition control, allowing wavelengths to be matched to plant photoreceptors to provide more optimal production and to influence plant morphology and composition. Because they are solid-state devices, LEDs are easily integrated into digital control systems, facilitating special lighting programs such as "daily light integral" lighting and sunrise and sunset simulations. LEDs are safer to operate than current lamps because they do not have glass envelopes or high touch temperatures, and they do not contain mercury. The first sustained work with LEDs as a source of plant lighting occurred in the mid-1980s to support the development of new lighting systems to be used in plant growth systems designed for research on the space shuttle and space station. These systems progressed from simple red-only LED arrays using the limited components available at the time to high-density, multicolor LED chip-on-board devices. As light output increases while device costs decrease, LEDs continue to move toward becoming economically feasible for even large-scale horticultural lighting applications.

Subfields: Plant Science

View Paper: https://www.semanticscholar.org/paper/7249954aa7a77ddd7b669bce779426bb2d4bb48f

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Citations in the corpus

LEDs for Energy Efficient Greenhouse Lighting (2014, background): “Solid state lighting using light-emitting diode (LED) technology represents a fundamentally different and energy efficient approach for the greenhouse industry that has proficient advantages over gaseous discharge-type lamps (high pressure sodium lamps) currently used in most greenhouses [1, 2].”
PLANTS FOR HUMAN LIFE SUPPORT IN SPACE: FROM MYERS TO MARS (2010, background): “Recent LED studies suggest that red and blue light should be adequate for most crops, but that adding a small amount of green light would be helpful for visual assessment of crop health (Kim et al., 2007; Massa et al., 2008; Morrow, 2008).”
In the light of new greenhouse technologies: 2. Direct effects of artificial lighting on arthropods and integrated pest management in greenhouse crops (2011, background): “…moment (Moe et al., 2006), but increasing interest is being focussed on different types of less energy-demanding narrow spectrum lamps and in photoselective covers and screens, and greenhouse panes which combine high light transmission and insu- lation values (Morrow, 2008; Vänninen et al., 2010).”
Effect of light-emitting diodes on growth and morphogenesis of upland cotton (Gossypium hirsutum L.) plantlets in vitro (2010, background): “These solid-state light sources are therefore ideal for use in plant lighting designs, and they allow wavelengths to be matched to plant photoreceptors to provide more optimal production and to influence plant morphology and metabolism (Bourget 2008; Massa et al. 2008; Morrow 2008).”
Growth of Impatiens, Petunia, Salvia, and Tomato Seedlings under Blue, Green, and Red Light-emitting Diodes (2014, background): “Edema or intumescences have been associated with plants grown in R-dominant environments with little or no B or FR light, ultraviolet-B (280 to 315 nm) radiation, or high humidity, especially those in Solanaceae (Lang and Tibbitts, 1983; Massa et al., 2008; Morrow and Tibbitts, 1988; Nilsen, 1971).”
Effects of Different Light Sources on the Growth of Non-heading Chinese Cabbage (Brassica campestris L.) (2012, neutral): “…light that can be used in a variety of horticultural and photo-biological applications (Stutte, 2009), including controlled research environments (Avercheva et al., 2009), lighting for tissue culture (Li et al., 2010) and supplemental and photoperiod lighting for greenhouses (Morrow, 2008).”
In the light of new greenhouse technologies: 1. Plant‐mediated effects of artificial lighting on arthropods and tritrophic interactions (2010, background): “The current status of LEDs in plant production was recently reviewed by Kim et al. (2005), Massa et al. (2008), Morrow (2008), Pinho (2008) and Yeh & Chung (2009).”
The effects of light-emitting diode lighting on greenhouse plant growth and quality (2013, background): “Because they are solid-state devices, LEDs are easily integrated into digital control systems (Morrow 2008) facilitating complex lighting program like varying intensity or spectral composition over a Manuscript received April 2013 course of photoperiod or with plant developmental stage (Yeh and…”
Growth, Photosynthetic Characteristics, Antioxidant Capacity and Biomass Yield and Quality of Wheat (Triticum aestivum L.) Exposed to LED Light Sources with Different Spectra Combinations (2014, background): “As a result, crop yields, physiological characteristics and metabolic components are under control (Bourget 2008, Massa et al. 2008, Morrow 2008).”
Light-Quality Manipulation to Control Plant Growth and Photomorphogenesis in Greenhouse Horticulture: The State of the Art and the Opportunities of Modern LED Systems (2021, methodology): “Electric lamps have been used for artificial lighting in plant cultivation for nearly 150 years (Wheeler 2008; Morrow 2008).”
A Moderate to High Red to Far-red Light Ratio from Light-emitting Diodes Controls Flowering of Short-day Plants (2013, background): “Compared with conventional lamps, LEDs have many desirable characteristics including a very long operating life, narrow bandwidth capability, full instantaneous irradiance when powered, and continually improving electrical efficiencies (Bourget, 2008; Morrow, 2008).”