Led Inter-Lighting in Year-Round Greenhouse Mini-Cucumber Production

Hao, Xiying; Zheng, Jingming; Little, C.; Khosla, S.

doi:10.17660/actahortic.2012.956.38

Cited by 56 publications

(33 citation statements)

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“…Plants were treated with intracanopy lighting where HPS lamps were supplemented using blue (465 nm) and red (667 nm) LEDs. The treatment did not result in a significant increase in the cumulative fresh weight of cucumbers over a 13‐wk period and the leaves tended to show curling as well (Trouwborst and others ; Hao and others ). However, as the cumulative photon flux of intracanopy lighting configuration using top‐lighting HPS lamp combined with LEDs was similar to the control using a top‐lighting HPS lamp alone, it appears acceptable to not have observed any significant difference.…”

Section: Leds In Food Production and Horticulturementioning

confidence: 98%

Application of Light‐Emitting Diodes in Food Production, Postharvest Preservation, and Microbiological Food Safety

D’Souza

Yuk

Khoo

et al. 2015

Comp Rev Food Sci Food Safe

173

124

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Light-emitting diodes (LEDs) possess unique properties that are highly suitable for several operations in the food industry. Such properties include low radiant heat emissions; high emissions of monochromatic light; electrical, luminous, and photon efficiency; long life expectancy, flexibility, and mechanical robustness. Therefore, they reduce thermal damage and degradation in crops and foods and are suitable in cold-storage applications. Control over spectral composition of emitted light results in increased yields and nutritive content of horticultural or agricultural produce. Recently, LEDs have been shown to preserve or enhance the nutritive quality of foods in the postharvest stage, as well as manipulate the ripening of fruits, and reduce fungal infections. LEDs can be used together with photosensitizers or photocatalysts to inactivate pathogenic bacteria in food. UV LEDs, which are rapidly being developed, can also effectively inactivate pathogens and preserve food in postharvest stages. Therefore, LEDs provide a nonthermal means of keeping food safe without using chemical sanitizers or additives, and do not accelerate bacterial resistance. This article provides a review of the technology of LEDs and their role in food production, postharvest preservation, and in microbiological safety. Several challenges and limitations are identified for further investigation, including the difficulty in optimizing LED lighting regimens for plant growth and postharvest storage, as well as the sensory quality and acceptability of foods stored or processed under LED lighting. Nevertheless, LED technology presents a worthy alternative to current norms in lighting for the growth and storage of safe and nutritious food.

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Section: Leds In Food Production and Horticulturementioning

confidence: 98%

Application of Light‐Emitting Diodes in Food Production, Postharvest Preservation, and Microbiological Food Safety

D’Souza

Yuk

Khoo

et al. 2015

Comp Rev Food Sci Food Safe

173

124

View full text Add to dashboard Cite

show abstract

“…Hao et al. also had mixed results when using interlighting with cucumber. Over the first two weeks of the experiment, visual quality and yield increased by more than the increase in total photon irradiance; however, these gains declined as the experiment progressed, especially in the blue interlighting treatment where some leaf curling was observed.…”

Section: Improving Yields With Interlightingmentioning

confidence: 99%

Photobiology in protected horticulture

Davis

Burns

2016

Food and Energy Security

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The introduction of high power LED lighting systems for horticulture has stimulated substantial interest from both the research community and the protected horticulture industry. LED lighting systems have the potential to reduce electrical energy consumption compared to conventional high pressure sodium lights and their energy efficiency continues to improve. In addition to the potential of LEDs to reduce carbon footprints and reduce running costs, LED lighting also provides considerable opportunities to exploit the wealth of photobiological knowledge to produce horticultural benefits. The narrow emission spectra of LEDs allows lighting systems to be tightly designed to stimulate specific plant photoreceptors, allowing plants to be manipulated to produce desirable characteristics. Lighting systems can be designed to maximize growth, control morphology, and optimize flavor and pigmentation. This review outlines how the light spectrum influences photosynthesis and how plant photoreceptors sense light and control growth. The review then discusses the ways in which this knowledge is being implemented in commercial horticulture to improve factors such as yield, flavor, color, plant growth, and flowering as well as pest and pathogen management and control. Research in this area is moving rapidly as the LED systems improve and increase in efficiency and as the range of novel horticultural applications expands.

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“…These results are very similar to those obtained by Hao et al (2012), who observed that LED interlighting increased cucumber fruit yield in early production period. For Marcelis (1993), the early yield of cucumber under intracanopy light is resulted of higher rate of individual fruit growth associated with a greater number of fruits growing at the same time on the plants.…”

Section: Yield and Plant Dry Weightsupporting

confidence: 91%

“…Hao et al (2012) reported that intracanopy lighting increased marketable yield of cucumber fruits. HoviPekkanen and Tahvonen (2008) found that interlighting increased first class yield and decreases refused fruits, agreeing with our results.…”

Section: Discussionmentioning

confidence: 99%

Supplemental LED interlighting on the physiological response and yield of mini-cucumber

Roldán¹,

Alberto²

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Led Inter-Lighting in Year-Round Greenhouse Mini-Cucumber Production

Cited by 56 publications

References 0 publications

Application of Light‐Emitting Diodes in Food Production, Postharvest Preservation, and Microbiological Food Safety

Application of Light‐Emitting Diodes in Food Production, Postharvest Preservation, and Microbiological Food Safety

Photobiology in protected horticulture

Supplemental LED interlighting on the physiological response and yield of mini-cucumber

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