Effects of Red Light Night Break Treatment on Growth and Flowering of Tomato Plants

Cao, Kai; Cui, Lirong; Yang, Lin; Zhou, Xiaoting; Bao, Encai; Zhao, Hailiang; Zou, Zhirong

doi:10.3389/fpls.2016.00527

Cited by 26 publications

(17 citation statements)

References 39 publications

(45 reference statements)

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“…Plants sense diurnal variations which affect flowering and accordingly are classified as short- day, long-day and day neutral plants. Importance of darkness in short-day plants is evident from the fact that disruption of dark period with light significantly affects flowering ( Andrés and Coupland, 2012 ; Johansson and Staiger, 2015 ; Cao et al, 2016 ). Under long-day condition, light inhibits the expression of flowering genes; HEADING DATE 3A ( HD3A ) and RICE FT-LIKE1 ( RFT1 ) in rice by activating an inhibitor HEADING DATE 1 (HD1), whereas, under short-days, HD1 induces the expression of HD3A and RFT1 ( Ishikawa et al, 2005 ).…”

Section: Hormonal Regulation Of Plant Development In Darkmentioning

confidence: 99%

Dark-Induced Hormonal Regulation of Plant Growth and Development

et al. 2020

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The sessile nature of plants has made them extremely sensitive and flexible toward the constant flux of the surrounding environment, particularly light and dark. The light is perceived as a signal by specific receptors which further transduce the information through the signaling intermediates and effector proteins to modulate gene expression. Signal transduction induces changes in hormone levels that alters developmental, physiological and morphological processes. Importance of light for plants growth is well recognized, but a holistic understanding of key molecular and physiological changes governing plants development under dark is awaited. Here, we describe how darkness acts as a signal causing alteration in hormone levels and subsequent modulation of the gene regulatory network throughout plant life. The emphasis of this review is on dark mediated changes in plant hormones, regulation of signaling complex COP/DET/FUS and the transcription factors PIFs which affects developmental events such as apical hook development, elongated hypocotyls, photoperiodic flowering, shortened roots, and plastid development. Furthermore, the role of darkness in shade avoidance and senescence is discussed.

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Section: Hormonal Regulation Of Plant Development In Darkmentioning

confidence: 99%

Dark-Induced Hormonal Regulation of Plant Growth and Development

et al. 2020

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“…Light intensity and CO 2 are the two most important factors affecting the photosynthetic process being, respectively, its energy source and carbon substrate (Muneer et al , Tomimatsu et al ). Healthy and robust plants are essential if we are to maximise fruit yield and quality (Cao et al ), so these plant qualities are necessary if we are to meet the food demands of our increasing human population (Toor et al ). To optimise the CO 2 and light environment for tomatoes, a better understanding of the effects of CO 2 and light intensity on tomato leaf gas exchange and growth is critical.…”

Section: Introductionmentioning

confidence: 99%

Increased CO₂ and light intensity regulate growth and leaf gas exchange in tomato

Pan

Wang

et al. 2019

Physiologia Plantarum

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Carbon dioxide concentration (CO2) and light intensity are known to play important roles in plant growth and carbon assimilation. Nevertheless, the underlying physiological mechanisms have not yet been fully explored. Tomato seedlings (Solanum lycopersicum Mill. cv. Jingpeng No. 1) were exposed to two levels of CO2 and three levels of light intensity and the effects on growth, leaf gas exchange and water use efficiency were investigated. Elevated CO2 and increased light intensity promoted growth, dry matter accumulation and pigment concentration and together the seedling health index. Elevated CO2 had no significant effect on leaf nitrogen content but did significantly upregulate Calvin cycle enzyme activity. Increased CO2 and light intensity promoted photosynthesis, both on a leaf‐area basis and on a chlorophyll basis. Increased CO2 also increased light‐saturated maximum photosynthetic rate, apparent quantum efficiency and carboxylation efficiency and, together with increased light intensity, it raised photosynthetic capacity. However, increased CO2 reduced transpiration and water consumption across different levels of light intensity, thus significantly increasing both leaf‐level and plant‐level water use efficiency. Among the range of treatments imposed, the combination of increased CO2 (800 µmol CO2 mol−1) and high light intensity (400 µmol m−2 s−1) resulted in optimal growth and carbon assimilation. We conclude that the combination of increased CO2 and increased light intensity worked synergistically to promote growth, photosynthetic capacity and water use efficiency by upregulation of pigment concentration, Calvin cycle enzyme activity, light energy use and CO2 fixation. Increased CO2 also lowered transpiration and hence water usage.

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“…Shinners) were increased by all the supplemental light conditions than in the control. The enhancement of seedling quality is not only duo to supplemental lighting but also duo to night interruption.Similarly, Cao et al [24] reported that night break not only increased stemdiameter, leaf number, and fruit fresh weight, but also resulted in more compact and healthier plant of tomato. Yoneda et al [25] also found night interruption treatments (4 h) combined with 8 h photoperiod increased leaf biomass of tomato to amounts observed under LD conditions.…”

Section: Growth Development and Morphologymentioning

confidence: 89%

“…More importantly, a study reported that supplemental lighting during nighttime is more effective to promote plant growth and yield as compared with daytime both in summer and winter [23]. Furthermore, night-interruption not only increase leaf biomass and crop yield but also result in more compact and healthier plants [24][25][26]. In commercial production, supplemental light intensity is usually between 100 and 200 µmol·m −2 ·s −1 photosynthetic photon flux density (PPFD) [27,28].…”

mentioning

confidence: 99%

Carbon Dioxide Enrichment Combined with Supplemental Light Improve Growth and Quality of Plug Seedlings of Astragalus membranaceus Bunge and Codonopsis lanceolata Benth. et Hook. f.

Ren

Jeong

2019

Agronomy

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Astragalus membranaceus Bunge and Codonopsis lanceolata Benth. et Hook. f. are two medicinal species used to remedy inflammation, tumor, and obesity in Eastern medicine. Carbon dioxide (CO2) and supplemental lighting are two methods to enhance the growth, yield, and quality of crops. However, few studies have focused on the synergistic effects of CO2 and the supplemental light source on plug seedlings of medicinal species. In this study, uniform seedlings were grown with no supplemental light (the control) or under one of three supplemental light sources [high pressure sodium (HPS), metal halide (MH), or mixed light-emitting diodes (LEDs)] combined with one of three levels of CO2 (350, 700, or 1050 μmol·mol−1). The supplemental light (100 μmol·m−2·s−1 photosynthetic photon flux density) and CO2 were provided simultaneously from 10:00 pm to 2:00 am every day. The results showed that the supplemental lighting (LEDs, MH, and HPS) greatly improved the seedling quality with greater dry weights (of the shoot, root, and leaf), stem diameter, leaf area, and Dickson’s quality index (DQI) than those of the control in both species. An enriched CO2 at 1050 μmol·mol−1 accelerated the growth and development of plug seedlings, evidenced by the increased root and leaf dry weights, stem diameter, and DQI compared to the those from the other two CO2 enrichment levels. Moreover, LEDs combined with 1050 μmol·mol−1 CO2 not only increased the contents of soluble sugars but also the starch content. However, an enriched CO2 at 700 μmol·mol−1 was more suitable for the accumulation of total phenols and flavonoids. Furthermore, LEDs combined with 700 or 1050 μmol·mol−1 CO2 increased the chlorophyll, quantum yield, and stomatal conductance at daytime and nighttime for A. membranaceus and C. lanceolata, respectively. In conclusion, the data suggest that LEDs combined with CO2 at 1050 μmol·mol−1 is recommended for enhancing the growth and development of plug seedlings of A. membranaceus and C. lanceolata.

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Effects of Red Light Night Break Treatment on Growth and Flowering of Tomato Plants

Cited by 26 publications

References 39 publications

Dark-Induced Hormonal Regulation of Plant Growth and Development

Dark-Induced Hormonal Regulation of Plant Growth and Development

Increased CO₂ and light intensity regulate growth and leaf gas exchange in tomato

Carbon Dioxide Enrichment Combined with Supplemental Light Improve Growth and Quality of Plug Seedlings of Astragalus membranaceus Bunge and Codonopsis lanceolata Benth. et Hook. f.

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Effects of Red Light Night Break Treatment on Growth and Flowering of Tomato Plants

Cited by 26 publications

References 39 publications

Dark-Induced Hormonal Regulation of Plant Growth and Development

Dark-Induced Hormonal Regulation of Plant Growth and Development

Increased CO2 and light intensity regulate growth and leaf gas exchange in tomato

Carbon Dioxide Enrichment Combined with Supplemental Light Improve Growth and Quality of Plug Seedlings of Astragalus membranaceus Bunge and Codonopsis lanceolata Benth. et Hook. f.

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Increased CO₂ and light intensity regulate growth and leaf gas exchange in tomato