Light quality of light emitting diodes affects growth, chlorophyll fluorescence and phytohormones of Tulip ‘Lasergame’

Roh, Yong Seung

doi:10.1007/s13580-022-00481-z

Cited by 8 publications

(5 citation statements)

References 59 publications

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“…For Jasminum sambac, sole-source lighting with blue LED delayed flowering time and decreased the number of flower buds, compared with red light [65]. However, for tulips grown indoors under sole-source lighting, blue LED did not affect flowering time nor flower diameter, compared with red LED, despite increased flower length [74]. Also, for narcissus bulbs forced under sole-source lighting, BL did not differ from red light in its effects on flowering date or the number of flowers [69].…”

Section: Plant Genotype Lighting Treatments Effects Of Lighting Treat...mentioning

confidence: 99%

Diverse Flowering Response to Blue Light Manipulation: Application of Electric Lighting in Controlled-Environment Plant Production

Kong,

Zheng

2024

Horticulturae

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Blue light is an important light wavelength in regulating plant flowering. In a controlled environment (CE) plant production systems, blue light can be manipulated easily and even precisely through electric lighting, especially with the advancement of light-emitted diode (LED) technologies. However, the results of previous studies in the literature about blue-light-mediated flowering are inconsistent, which would limit its practical application in CE plant production while implying that an in-depth study of the relevant physiological mechanism is necessary in the future. This review consolidates and analyzes the diverse findings from previous studies on blue light-mediated plant flowering in varying high-value crops from ornamental plants to fruits, vegetables, and specialty crops. By synthesizing the contrasting results, we proposed the possible explanations and even the underlying mechanisms related to blue light intensity and exposure duration, its co-action with other light wavelengths, background environment conditions, and the involved photoreceptors. We have also identified the knowledge gaps based on these studies and outlined future directions for research and potential application in this promising field. This review provides valuable insights into the important and diverse role of blue light in plant flowering and offers a foundation for further investigations to optimize plant flowering through lighting technologies.

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Section: Plant Genotype Lighting Treatments Effects Of Lighting Treat...mentioning

confidence: 99%

Diverse Flowering Response to Blue Light Manipulation: Application of Electric Lighting in Controlled-Environment Plant Production

Kong,

Zheng

2024

Horticulturae

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“…We found that there are reported discrepancies in the morphological responses to blue vs. red LED light for plants under conditions other than an in vitro environment. Specifically, blue LED light was found to promote stem or leaf elongation in eggplants [ 23 , 24 ], cherry tomatoes [ 25 ], cucumber [ 26 , 27 ], watermelon [ 28 ], sesame [ 29 ], arugula [ 30 , 31 , 32 , 33 , 34 , 35 , 36 ], kale [ 30 , 32 , 33 , 34 ], cabbage [ 30 , 32 , 33 , 34 , 37 ], sunflowers [ 16 , 38 ], peas [ 39 ], calibrachoa [ 19 , 40 , 41 , 42 , 43 ], petunias [ 17 , 21 , 22 , 40 , 41 , 42 , 43 , 44 ], marigolds [ 18 , 40 , 42 , 43 ], geraniums [ 40 , 42 , 43 ], tulips [ 45 ], and wild Arabidopsis [ 46 , 47 , 48 ], compared to ...…”

Section: A Scientific Consensus Has Been Revised By Discoveries From ...mentioning

confidence: 99%

“…Blue LEDs have also been found to show a promotional effect on the elongation of some other cut flower species. In tulips, sole-source lighting with blue LEDs for 12 h d −1 at a PPFD of 200 µmol m −2 s −1 increased the cut flower stem length and cut flower fresh weight compared with red LEDs [ 45 ]. Sole-source lighting with blue LEDs for 16 h d −1 also caused taller tulip plants than red or white LEDs and resulted in an earlier sprouting and flowering and a higher biomass compared with darkness [ 158 ].…”

Section: Application Of Blue Leds In Mediating Plant Elongation For C...mentioning

confidence: 99%

Magic Blue Light: A Versatile Mediator of Plant Elongation

Kong,

Zheng

2023

Plants

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Blue light plays an important role in regulating plant elongation. However, due to the limitations of older lighting technologies, the responses of plants to pure blue light have not been fully studied, and some of our understandings of the functions of blue light in the literature need to be revisited. This review consolidates and analyzes the diverse findings from previous studies on blue-light-mediated plant elongation. By synthesizing the contrasting results, we uncover the underlying mechanisms and explanations proposed in recent research. Moreover, we delve into the exploration of blue light-emitting diodes (LEDs) as a tool for manipulating plant elongation in controlled-environment plant production, highlighting the latest advancements in this area. Finally, we acknowledge the challenges faced and outline future directions for research in this promising field. This review provides valuable insights into the pivotal role of blue light in plant growth and offers a foundation for further investigations to optimize plant elongation using blue light technology.

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“…Light notably affects plant growth in plant factories under various environmental conditions. With technological advancements, light-emitting diodes (LEDs) have been introduced in plant factories to apply specific wavelengths of light selectively for many plants, such as perilla (Sul et al, 2022), tulip (Roh and Yoo, 2023) and lettuce (Kang et al, 2016). Changes in the light spectrum considerably influence plant growth, yield, and quality outcomes (Macedo et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Determining Light Conditions for Improved Carrot Growth in a Closed-type Plant Factory

Sung,

Kwak,

Cho

2024

HST

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A plant factory refers to a cultivation method in which plants are grown in a completely controlled environment that is unaffected by external climate changes to establish and maintain optimal environmental conditions for crop growth, resulting in maximum productivity and quality. This study aimed to determine the optimal lighting conditions for cultivating carrots (Daucus carota L.) in plant factories. Carrots were grown using a system known as the NFT system for 33 d after transplantation, and the growth parameters investigated included the leaf area, shoot and root fresh weight, and dry weight. A carrot-specific nutrient solution was used, which was developed based on the appropriate content of macro elements in the plant (NO 3 -N:15.0, NH 4 -N:1.0, P:1.0, K:11.0, Ca:2.0, Mg:1.0, SO 4 -S:1.0 mM•L -1 ). The pH of the nutrient solution was maintained between 5.5 and 6.0, and the electrical conductivity was set to 1.0 dS•m -1 during the seedling stage and 1.5 dS•m -1 after transplanting. The lighting conditions were established by adjusting the ratios of red (R), green (G), and blue (B) light based on photosynthetic photon flux density.

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Light quality of light emitting diodes affects growth, chlorophyll fluorescence and phytohormones of Tulip ‘Lasergame’

Cited by 8 publications

References 59 publications

Diverse Flowering Response to Blue Light Manipulation: Application of Electric Lighting in Controlled-Environment Plant Production

Diverse Flowering Response to Blue Light Manipulation: Application of Electric Lighting in Controlled-Environment Plant Production

Magic Blue Light: A Versatile Mediator of Plant Elongation

Determining Light Conditions for Improved Carrot Growth in a Closed-type Plant Factory

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