Photosynthesis, plant growth, and fruit production of single-truss tomato improves with supplemental lighting provided from underneath or within the inner canopy

Jiang, Chengyao; Johkan, Masahumi; Hohjo, Masaaki; Tsukagoshi, Satoru; Ebihara, Mitsuru; Nakaminami, Akio; Maruo, Toru

doi:10.1016/j.scienta.2017.04.026

Cited by 58 publications

(67 citation statements)

References 45 publications

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“…They represent the capacity of the plant to capture low light energies and low levels of CO 2 . This study confirms previous studies (Song et al , Jiang et al , Singh and Reddy ) showing that increased CO 2 and increased light intensity promote AQY and CE, thus to increasing Pn max and A max . Significant cross‐correlations of AQY, CE and Pn max to CO 2 concentrations, light intensity and the CO 2 :light interaction were evident.…”

Section: Discussionsupporting

confidence: 92%

“…There are many routes through which increased CO 2 and light intensity may regulate Pn. These include effects on leaf pigments (Pérez‐López et al ), leaf mineral content (Li et al ), water use (Lanoue et al ) and Calvin cycle enzyme activity (Yu and Wang ), AQY and CE (Faralli et al , Jiang et al ). Potentially, all these result in higher dry mass accumulations and therefore faster growth (Li et al ).…”

Section: Discussionmentioning

confidence: 99%

“…Conversely, increased light intensity and increased Calvin cycle enzyme activity, can decrease inhibition of ribulose‐1,5‐bisphosphate regeneration (Sharkey et al ). Furthermore, increasing CO 2 and increasing light intensity independently, can increase photosynthetic capacity by increasing the apparent quantum yield (AQY), and carboxylation efficiency (CE; Jiang et al , Singh and Reddy ), which represent the capacity for light use and for CO 2 fixation. But, how is it that their combination affects these parameters?…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Pan

Wang

et al. 2019

Physiologia Plantarum

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“…It was demonstrated that Blight could promote tomato plant's height Yang et al, 2018) and the R light, when combined with Blight with the same quantity, increases the tomato stem diameter and chlorophyll a, chlorophyll b, and carotenoid content (Yang et al, 2018). Moreover, some of the previous studies about the tomato fruit yield indicated that the R light could promote the fruit number and the fruit yield of the greenhouse tomato (Brazaityte et al, 2009;Jiang et al, 2017).…”

Section: Introductionmentioning

confidence: 96%

“…However, most studies of the R and B light treatment in different ratios were in the seedling stage of the tomato. There are only a few studies about the effect of R and B light during fruit stage such as Brazaityte, and Jiang (Brazaityte et al, 2009;Jiang et al, 2017). Only Brazaityte studied the tomato in two stages: transplants stage and fruit stage.…”

Section: Introductionmentioning

confidence: 99%

Effect of three specific spectra of LED light on the growth, yield, and fruit quality of Sida tomato

Watjanatepin¹

2019

Int. j. adv. appl. sci.

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The LED artificial light has been widely applied for greenhouse and indoor plantation. The artificial light generates sole red per blue (R:B) light ratio during plant cultivation from seedling through the fruiting period. The aim of this study is to investigate the fruit quality and the yield of Sida tomatoes under three specific spectra of LED light at different R:B ratios in comparison with the tomato yield and fruit quality under sole R:B light ratio. The experiments were divided into two groups. The 1 st experimental group involved applying the LED light at R25:B75R for the seedling stage, R50:B50 for the vegetative growth, and R75:B25R for the fruit stage. The second experimental group involved applying the LED light at R63:B37 for the seedling, vegetative growth, and fruiting stages. Independent t-test was applied to determine the mean difference of the plant height, stem diameter, fruit yield, fruit weight, fruit size, and TSS. The experimental period was for 115 days. The results confirmed that the three specific spectra of LED light for each growth stage could promote the highest fruit weight, fruit yield, marketable fruit weight, and marketable fruit yield when compared to Sida tomatoes treated with one constant spectrum. Moreover, the level of total soluble sugar is also the highest. Sida tomatoes treated with three specific spectra of LED light has contributed to early and increased fruit yield. This method could be applied to produce high quality tomatoes and yield for the indoor plantation system.

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Effects of Exogenous Application of Melatonin on Quality and Sugar Metabolism in ‘Zaosu’ Pear Fruit

Liu

Yue

et al. 2019

J Plant Growth Regul

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Photosynthesis, plant growth, and fruit production of single-truss tomato improves with supplemental lighting provided from underneath or within the inner canopy

Cited by 58 publications

References 45 publications

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

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

Effect of three specific spectra of LED light on the growth, yield, and fruit quality of Sida tomato

Effects of Exogenous Application of Melatonin on Quality and Sugar Metabolism in ‘Zaosu’ Pear Fruit

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Photosynthesis, plant growth, and fruit production of single-truss tomato improves with supplemental lighting provided from underneath or within the inner canopy

Cited by 58 publications

References 45 publications

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

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

Effect of three specific spectra of LED light on the growth, yield, and fruit quality of Sida tomato

Effects of Exogenous Application of Melatonin on Quality and Sugar Metabolism in ‘Zaosu’ Pear Fruit

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Product

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

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