White-light emitting diodes’ spectrum effect on photosynthesis and nutrient use efficiency in <i>Podocarpus macrophyllus</i> seedlings

Luo, Yuan-Chun; Zhao, Shujie; Tang, Jingyao; Zhu, He; Wei, Hongxu; Cui, Wei; Wang, Minghui; Guo, Peng

doi:10.1080/01904167.2020.1798999

Cited by 14 publications

(24 citation statements)

References 23 publications

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“…The development of semiconductor lighting contributes to the wide use of light emitting diodes (LED) in plant production. Being able to determine the amount of photons emitted at a given bandwidth gives LED illuminators more chances to be shown in photobiology studies than those with fixed wavelength characteristics (such as high-pressure sodium lamps) (Li et al, 2018;Luo et al, 2020;Wei et al, 2020a;Wei et al, 2020b). Bandwidths in blue-light (400-500 nm) and red-light (600-700 nm) fall in the range that is preferred by chlorophylls.…”

Section: Academicpresmentioning

confidence: 99%

“…Less than half of green-light (500-600 nm) are reflected by chloroplasts while the rest is absorbed by pigments or transmitted to shaded parts of the plant (Nishio, 2001;Terashima et al, 2009). Therefore, wavelengths in red-and blue-lights are mostly used for the design in different proportional ratios while fewer ones used to test the effects of the green-light spectrum on plant response (Luo et al, 2020).…”

Section: Academicpresmentioning

confidence: 99%

“…Sunlight has a natural spectrum in a wide range of wavelengths . Studies have detected how lights in a wide-bandwidth affect plant growth (Wang et al, 2020;Wei et al, 2020a;Wei et al, 2020b), production, photosynthesis (Li et al, 2018;Luo et al, 2020), and nutritional uptake and utilization Wang et al, 2020;Wei et al, 2020a;Wei et al, 2020b). The main purpose of these studies was to obtain maximum yields from plants with high growth efficiency and are subjected to some special spectrum.…”

Section: Academicpresmentioning

confidence: 99%

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Light-emitting diode spectra modify nutritional status, physiological response, and secondary metabolites in Ficus hirta and Alpinia oxyphylla

Zhou

Shang

Feiyu

et al. 2021

Not Bot Horti Agrobo

Self Cite

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Lighting spectrum is one of the key factors that determine biomass production and secondary-metabolism accumulation in medicinal plants under artificial cultivation conditions. Ficus hirta and Alpinia oxyphylla seedlings were cultured with blue (10% red, 10% green, 70% blue), green (20% red, 10% green, 30% blue), and red-enriched (30% red, 10% green, 20% blue) lights in a wide bandwidth of 400-700 nm. F. hirta seedlings had lower diameter, fine root length, leaf area, biomass, shoot nutrient (N) and phosphorus concentrations in the blue-light spectrum compared to the red- and green-light spectra. In contrast, A. oxyphylla seedlings showed significantly higher concentrations of foliar flavonoids and saponins in red-light spectrum with rare responses in N, chlorophyll, soluble sugars, and starch concentrations. F. hirta is easily and negatively impacted by blue-light spectrum but A. oxyphylla is suitably used to produce flavonoid and saponins in red-light spectrum across a wide bandwidth.

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Section: Academicpresmentioning

confidence: 99%

Section: Academicpresmentioning

confidence: 99%

Section: Academicpresmentioning

confidence: 99%

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Light-emitting diode spectra modify nutritional status, physiological response, and secondary metabolites in Ficus hirta and Alpinia oxyphylla

Zhou

Shang

Feiyu

et al. 2021

Not Bot Horti Agrobo

Self Cite

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“…High-pressure sodium (HPS) lamps are one of the most common instruments used to achieve continuous lighting in greenhouse production of tree seedlings (Apostol et al, 2015;. Further development of light-emitting diode (LED) reveals that the modification of light spectra can further promote biomass accumulation and enlarge the demand of nutrient uptake (Luo et al, 2020;Zhao et al, 2020). Compared to the HPS spectrum, the use of LED spectrum on seedlings has shown additional benefits like promoted root development and active physiology (Li et al, 2018;Luo et al, 2020;.…”

Section: Introductionmentioning

confidence: 99%

“…Further development of light-emitting diode (LED) reveals that the modification of light spectra can further promote biomass accumulation and enlarge the demand of nutrient uptake (Luo et al, 2020;Zhao et al, 2020). Compared to the HPS spectrum, the use of LED spectrum on seedlings has shown additional benefits like promoted root development and active physiology (Li et al, 2018;Luo et al, 2020;. Therefore, the use of different light spectra in the extended photoperiod can facilitate successful feeding of red-seed tree seedlings with an intensive EF regime.…”

Section: Introductionmentioning

confidence: 99%

Exponential fertilization on red-seed tree (Ormosia hosiei) seedlings subjected to contrasting light conditions: Do we really need intensive nutrient loading?

Chu

Luo

Zhou

2021

Not Bot Horti Agrobo

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Exponential fertilization (EF) can feed seedlings with more nutrients than needed for growth and continuous lighting is expected to reduce the risk of loading at high application rate. In this study, red-seed tree (Ormosia hosiei Hemsley & E. H. Wilson) seedlings were raised by EF at a low rate of 160 mg nitrogen (N) plant-1 (conventional) (N-phosphorus [P]-potassium [K], 12-9-12) and a high rate of 600 mg N plant-1 (intensive), which was adapted from previous studies with large-pot-seedlings. Both fertilizer regimes were nested to either of two light spectra from high-pressure sodium (HPS) and light-emitting diode (LED) sources with three replicates for each combined treatment. Seedlings subjected to the conventional regime in the LED spectrum showed better growth and greater biomass accumulation with higher leaf N and P contents than other ones. In the conventional fertilizer regime, the LED spectrum also resulted in higher photosynthesis shown by more pigments and higher N synthesis than the HPS spectrum. The HPS spectrum strengthened P synthesis in the intensive regime. The antioxidative activity was stimulated by a high dose of EF, hence excessive toxicity was likely induced. We recommend using the normal rate of 160 mg N plant-1 for the culture of red-seed tree seedlings with LED lighting to promote seedling quality without causing excessive nutrient toxicity.

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Occurrence of Pestalotiopsis lushanensis causing leaf blight on Buddhist pine in China

2022

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White-light emitting diodes’ spectrum effect on photosynthesis and nutrient use efficiency in Podocarpus macrophyllus seedlings

Cited by 14 publications

References 23 publications

Light-emitting diode spectra modify nutritional status, physiological response, and secondary metabolites in Ficus hirta and Alpinia oxyphylla

Light-emitting diode spectra modify nutritional status, physiological response, and secondary metabolites in Ficus hirta and Alpinia oxyphylla

Exponential fertilization on red-seed tree (Ormosia hosiei) seedlings subjected to contrasting light conditions: Do we really need intensive nutrient loading?

Occurrence of Pestalotiopsis lushanensis causing leaf blight on Buddhist pine in China

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