Responses of supplemental blue light on flowering and stem extension growth of cut chrysanthemum

Jeong, Sung Woo; Hogewoning, Sander W.; Ieperen, W. van

doi:10.1016/j.scienta.2013.11.006

Cited by 55 publications

(45 citation statements)

References 31 publications

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“…Spectral customization can be used to increase desirable plant characteristics. For example, special light formulations can increase plant growth rate and production (Eguchi et al, 2016a;Ouzounis et al, 2016;Runkle and Park, 2016), increase the concentration of secondary metabolites in plant tissue (Goto et al, 2016;Li and Kubota, 2009;Nicole et al, 2016;Noguchi and Amaki, 2016;Samuoliene et al, 2012), promote plant development (Gilberto et al, 2005), and generate desirable plant morphology (Chia and Kubota, 2010;Hernández and Kubota, 2015;Jeong et al, 2014;Yang et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Tomato seedling physiological responses under different percentages of blue and red photon flux ratios using LEDs and cool white fluorescent lamps

Hernández

Eguchi

Devecí

et al. 2016

Scientia Horticulturae

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Lamp spectral customization can be a strategy to achieve desirable plant characteristics when plants are grown under sole-source electric lighting. Vegetable transplants can be efficiently and economically grown under indoor-production systems with electrical lighting; however, speciesspecific light recipes have to be developed to improve plant growth, development and morphology, as well as to reduce electrical consumption. The objective of this study was to evaluate the growth and morphology of tomato transplants to a broad range of blue to red (B:R) photon flux (PF) ratios under LEDs and cool white fluorescent lamps (CWF). Tomato "Komeett" and "Beaufort" seedlings were grown in a climate control growth chamber. Using LEDs, seven light treatments with different blue (B), green (G) and red (R) PF ratios were used: 100R, 10B:90R, 20B:28G:52R, 30B:70R, 50B:50R, 75B:25R and 100B. In addition, a CWF treatment served as the control. Hypocotyl length of "Komeett" decreased with the increase of percent B PF up to 75% B. Plant leaf area was 64-72% greater under treatments emitting both B and R PF than in the 100 B and 100 R treatments. Similarly, tomato "Komeett" fresh mass, dry mass, leaf

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Section: Introductionmentioning

confidence: 99%

Tomato seedling physiological responses under different percentages of blue and red photon flux ratios using LEDs and cool white fluorescent lamps

Hernández

Eguchi

Devecí

et al. 2016

Scientia Horticulturae

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“…All plants have photoreceptors that sense light quality, and these receptors are responsible for a number of morphogenic responses called photomorphogenesis (Jeong et al , Gautam et al ). Of these photoreceptors, phytochromes are sensitive to red and far‐red light, whereas cryptochromes and phototrophins are sensitive to blue light (Lambers et al , Jeong et al ). Since plants absorb approximately 90% of incoming red and blue light, they are sensitive to small changes in these light levels (Fan et al ).…”

Section: Introductionmentioning

confidence: 99%

“…Normal R:FR may lead to higher ethylene levels (Kurepin et al ), and reduced SLA as a result of thicker leaves to protect the plant from photodamage (Fan et al ). In contrast, blue light is a high‐energy wavelength that stimulates a number of responses, including inhibition of stem elongation (Jeong et al , Taiz et al ), accumulation of flavonoids, anthocyanins, and antioxidants (Johkan et al ), increased chlorophyll a/b ratio and accumulation of photosynthetic pigments. Complete absence of blue light in irradiation suppresses biomass accumulation, while optimal levels can stimulate greater biomass (Johkan et al , Taiz et al ) due to guard cell opening (Taiz et al ) and increased photosynthetic capacity (Hogewoning et al ).…”

Section: Introductionmentioning

confidence: 99%

Light quality and quantity regulate aerobic methane emissions from plants

Martel

Qaderi

2016

Physiologia Plantarum

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Studies have been mounting in support of the finding that plants release aerobic methane (CH ), and that these emissions are increased by both short-term and long-term environmental stress. It remains unknown whether or not they are affected by variation in light quantity and quality, whether emissions change over time, and whether they are influenced by physiological parameters. Light is the primary energy source of plants, and therefore an important regulator of plant growth and development. Both shade-intolerant sunflower and shade-tolerant chrysanthemum were investigated for the release of aerobic CH emissions, using either low or high light intensity, and varying light quality, including control, low or normal red:far-red ratio (R:FR), and low or high levels of blue, to discern the relationship between light and CH emissions. It was found that low levels of light act as an environmental stress, facilitating CH release from both species. R:FR and blue lights increased emissions under low light, but the results varied with species, providing evidence that both light quantity and quality regulate CH emissions. Emission rates of 6.79-41.13 ng g DW h and 18.53-180.25 ng g DW h were observed for sunflower and chrysanthemum, respectively. Moreover, emissions decreased with age as plants acclimated to environmental conditions. Since effects were similar in both species, there may be a common trend among a number of shade-tolerant and shade-intolerant species. Light quantity and quality are influenced by factors including cloud covering, so it is important to know how plants will be affected in the context of aerobic CH emissions.

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“…Other studies have shown the promotive effects of B radiation on extension growth. For example, chrysanthemum 'Zembla' grown for 42 d was 33% taller but flowered similarly under a 4-h DE with B radiation (peak wavelength not reported) at 100 µmol•m −2 •s −1 after an 11-h photoperiod compared with no DE lighting (Jeong et al, 2014). In addition, stem length of eggplant (Solanum melongena), but not lettuce (Lactuca sativa), was greater under B radiation (peak wavelength = 470 nm) than under green (peak wavelength = 525 nm) or R radiation (peak wavelength = 660 nm), and it increased with B radiation intensity up to 100 µmol•m −2 •s −1 (Hirai et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

Moderate-intensity blue radiation can regulate flowering, but not extension growth, of several photoperiodic ornamental crops

Runkle

2017

Environmental and Experimental Botany

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When the natural photoperiod is short, lighting at the end of a day (day extension) or during the middle of a night (night interruption) can regulate flowering through intricate photoreceptive pathways. Phytochromes primarily absorb red (R; 600 to 700 nm) and far-red (FR; 700 to 800 nm) radiation and mediate flowering and photomorphogenesis. Although blue (B; 400 to 500 nm) radiation does not influence flowering at a low intensity, it can be well absorbed by photoreceptors such as cryptochromes and, to a lesser extent, phytochromes. Therefore, a relatively high dose of B radiation may be required to trigger these and other photoreceptors to elicit flowering responses. We grew five long-day plants and two short-day plants in a controlled-environment greenhouse under a 9-h short day with or without 5.5-h day-extension or 4-h night-interruption lighting from light-emitting diodes. B radiation was delivered at 0, 1 (low), 15, or 30 (moderate) µmol•m −2 •s −1 , with or without low R+white+FR radiation. Moderate B radiation created long days in all crops as effectively as low R+white+FR radiation. Flowering of calibrachoa and petunia, but not other crops, was 2 to 4 d earlier when moderate B radiation was added to low R+white+FR radiation. At a sufficiently high intensity, B radiation possibly mediated these flowering responses through interactions of signaling molecules and multiple photoreceptors besides phytochromes. There were few or no photomorphogenic differences among flower-inducing treatments in most crops. We conclude that night-interruption lighting with moderate B radiation, alone and when added to low R and FR radiation, can regulate flowering, but does not inhibit extension growth, of a wide range of photoperiodic crops.

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Responses of supplemental blue light on flowering and stem extension growth of cut chrysanthemum

Cited by 55 publications

References 31 publications

Tomato seedling physiological responses under different percentages of blue and red photon flux ratios using LEDs and cool white fluorescent lamps

Tomato seedling physiological responses under different percentages of blue and red photon flux ratios using LEDs and cool white fluorescent lamps

Light quality and quantity regulate aerobic methane emissions from plants

Moderate-intensity blue radiation can regulate flowering, but not extension growth, of several photoperiodic ornamental crops

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