Unraveling the role of red:Blue LED lights on resource use efficiency and nutritional properties of indoor grown sweet basil

Giuseppina Pennisi, Sonia Blasioli, Antonio Cellini, Lorenzo Maia, Andrea Crepaldi, Ilaria Braschi, Francesco Spinelli, Silvana Nicola, Juan A. Fernandez, Cecilia Stanghellini, Leo F.M. Marcelis, Francesco Orsini*, Giorgio Gianquinto

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)

Abstract

Indoor plant cultivation can result in significantly improved resource use efficiency (surface, water, and nutrients) as compared to traditional growing systems, but illumination costs are still high. LEDs (light emitting diodes) are gaining attention for indoor cultivation because of their ability to provide light of different spectra. In the light spectrum, red and blue regions are often considered the major plants’ energy sources for photosynthetic CO 2 assimilation. This study aims at identifying the role played by red:blue (R:B) ratio on the resource use efficiency of indoor basil cultivation, linking the physiological response to light to changes in yield and nutritional properties. Basil plants were cultivated in growth chambers under five LED light regimens characterized by different R:B ratios ranging from 0.5 to 4 (respectively, RB 0.5 , RB 1 , RB 2 , RB 3 , and RB 4 ), using fluorescent lamps as control (CK 1 ). A photosynthetic photon flux density of 215 µmol m −2 s −1 was provided for 16 h per day. The greatest biomass production was associated with LED lighting as compared with fluorescent lamp. Despite a reduction in both stomatal conductance and PSII quantum efficiency, adoption of RB 3 resulted in higher yield and chlorophyll content, leading to improved use efficiency for water and energy. Antioxidant activity followed a spectral-response function, with optimum associated with RB 3 . A low RB ratio (0.5) reduced the relative content of several volatiles, as compared to CK 1 and RB ≥ 2. Moreover, mineral leaf concentration (g g −1 DW) and total content in plant (g plant −1 ) were influences by light quality, resulting in greater N, P, K, Ca, Mg, and Fe accumulation in plants cultivated with RB 3 . Contrarily, nutrient use efficiency was increased in RB ≤ 1. From this study it can be concluded that a RB ratio of 3 provides optimal growing conditions for indoor cultivation of basil, fostering improved performances in terms of growth, physiological and metabolic functions, and resources use efficiency.

Original languageEnglish
Article number305
JournalFrontiers in Plant Science
Volume10
DOIs
Publication statusPublished - 13 Mar 2019

Fingerprint

Ocimum basilicum
blue light
basil
lighting
light quality
energy
nutrient use efficiency
plant cultural practices
growth chambers
water use efficiency
stomatal conductance
plant response
assimilation (physiology)
biomass production
surface water
antioxidant activity
minerals
chlorophyll
nutrients
leaves

Keywords

  • Energy use efficiency (EUE)
  • Land surface use efficiency (SUE)
  • Nutrient use efficiency (NUE)
  • Ocimum basilicum L.
  • Plant factories with artificial lighting (PFALs)
  • Water use efficiency (WUE)

Cite this

Pennisi, Giuseppina ; Blasioli, Sonia ; Cellini, Antonio ; Maia, Lorenzo ; Crepaldi, Andrea ; Braschi, Ilaria ; Spinelli, Francesco ; Nicola, Silvana ; Fernandez, Juan A. ; Stanghellini, Cecilia ; Marcelis, Leo F.M. ; Orsini, Francesco ; Gianquinto, Giorgio. / Unraveling the role of red:Blue LED lights on resource use efficiency and nutritional properties of indoor grown sweet basil. In: Frontiers in Plant Science. 2019 ; Vol. 10.
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title = "Unraveling the role of red:Blue LED lights on resource use efficiency and nutritional properties of indoor grown sweet basil",
abstract = "Indoor plant cultivation can result in significantly improved resource use efficiency (surface, water, and nutrients) as compared to traditional growing systems, but illumination costs are still high. LEDs (light emitting diodes) are gaining attention for indoor cultivation because of their ability to provide light of different spectra. In the light spectrum, red and blue regions are often considered the major plants’ energy sources for photosynthetic CO 2 assimilation. This study aims at identifying the role played by red:blue (R:B) ratio on the resource use efficiency of indoor basil cultivation, linking the physiological response to light to changes in yield and nutritional properties. Basil plants were cultivated in growth chambers under five LED light regimens characterized by different R:B ratios ranging from 0.5 to 4 (respectively, RB 0.5 , RB 1 , RB 2 , RB 3 , and RB 4 ), using fluorescent lamps as control (CK 1 ). A photosynthetic photon flux density of 215 µmol m −2 s −1 was provided for 16 h per day. The greatest biomass production was associated with LED lighting as compared with fluorescent lamp. Despite a reduction in both stomatal conductance and PSII quantum efficiency, adoption of RB 3 resulted in higher yield and chlorophyll content, leading to improved use efficiency for water and energy. Antioxidant activity followed a spectral-response function, with optimum associated with RB 3 . A low RB ratio (0.5) reduced the relative content of several volatiles, as compared to CK 1 and RB ≥ 2. Moreover, mineral leaf concentration (g g −1 DW) and total content in plant (g plant −1 ) were influences by light quality, resulting in greater N, P, K, Ca, Mg, and Fe accumulation in plants cultivated with RB 3 . Contrarily, nutrient use efficiency was increased in RB ≤ 1. From this study it can be concluded that a RB ratio of 3 provides optimal growing conditions for indoor cultivation of basil, fostering improved performances in terms of growth, physiological and metabolic functions, and resources use efficiency.",
keywords = "Energy use efficiency (EUE), Land surface use efficiency (SUE), Nutrient use efficiency (NUE), Ocimum basilicum L., Plant factories with artificial lighting (PFALs), Water use efficiency (WUE)",
author = "Giuseppina Pennisi and Sonia Blasioli and Antonio Cellini and Lorenzo Maia and Andrea Crepaldi and Ilaria Braschi and Francesco Spinelli and Silvana Nicola and Fernandez, {Juan A.} and Cecilia Stanghellini and Marcelis, {Leo F.M.} and Francesco Orsini and Giorgio Gianquinto",
year = "2019",
month = "3",
day = "13",
doi = "10.3389/fpls.2019.00305",
language = "English",
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journal = "Frontiers in Plant Science",
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Pennisi, G, Blasioli, S, Cellini, A, Maia, L, Crepaldi, A, Braschi, I, Spinelli, F, Nicola, S, Fernandez, JA, Stanghellini, C, Marcelis, LFM, Orsini, F & Gianquinto, G 2019, 'Unraveling the role of red:Blue LED lights on resource use efficiency and nutritional properties of indoor grown sweet basil', Frontiers in Plant Science, vol. 10, 305. https://doi.org/10.3389/fpls.2019.00305

Unraveling the role of red:Blue LED lights on resource use efficiency and nutritional properties of indoor grown sweet basil. / Pennisi, Giuseppina; Blasioli, Sonia; Cellini, Antonio; Maia, Lorenzo; Crepaldi, Andrea; Braschi, Ilaria; Spinelli, Francesco; Nicola, Silvana; Fernandez, Juan A.; Stanghellini, Cecilia; Marcelis, Leo F.M.; Orsini, Francesco; Gianquinto, Giorgio.

In: Frontiers in Plant Science, Vol. 10, 305, 13.03.2019.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Unraveling the role of red:Blue LED lights on resource use efficiency and nutritional properties of indoor grown sweet basil

AU - Pennisi, Giuseppina

AU - Blasioli, Sonia

AU - Cellini, Antonio

AU - Maia, Lorenzo

AU - Crepaldi, Andrea

AU - Braschi, Ilaria

AU - Spinelli, Francesco

AU - Nicola, Silvana

AU - Fernandez, Juan A.

AU - Stanghellini, Cecilia

AU - Marcelis, Leo F.M.

AU - Orsini, Francesco

AU - Gianquinto, Giorgio

PY - 2019/3/13

Y1 - 2019/3/13

N2 - Indoor plant cultivation can result in significantly improved resource use efficiency (surface, water, and nutrients) as compared to traditional growing systems, but illumination costs are still high. LEDs (light emitting diodes) are gaining attention for indoor cultivation because of their ability to provide light of different spectra. In the light spectrum, red and blue regions are often considered the major plants’ energy sources for photosynthetic CO 2 assimilation. This study aims at identifying the role played by red:blue (R:B) ratio on the resource use efficiency of indoor basil cultivation, linking the physiological response to light to changes in yield and nutritional properties. Basil plants were cultivated in growth chambers under five LED light regimens characterized by different R:B ratios ranging from 0.5 to 4 (respectively, RB 0.5 , RB 1 , RB 2 , RB 3 , and RB 4 ), using fluorescent lamps as control (CK 1 ). A photosynthetic photon flux density of 215 µmol m −2 s −1 was provided for 16 h per day. The greatest biomass production was associated with LED lighting as compared with fluorescent lamp. Despite a reduction in both stomatal conductance and PSII quantum efficiency, adoption of RB 3 resulted in higher yield and chlorophyll content, leading to improved use efficiency for water and energy. Antioxidant activity followed a spectral-response function, with optimum associated with RB 3 . A low RB ratio (0.5) reduced the relative content of several volatiles, as compared to CK 1 and RB ≥ 2. Moreover, mineral leaf concentration (g g −1 DW) and total content in plant (g plant −1 ) were influences by light quality, resulting in greater N, P, K, Ca, Mg, and Fe accumulation in plants cultivated with RB 3 . Contrarily, nutrient use efficiency was increased in RB ≤ 1. From this study it can be concluded that a RB ratio of 3 provides optimal growing conditions for indoor cultivation of basil, fostering improved performances in terms of growth, physiological and metabolic functions, and resources use efficiency.

AB - Indoor plant cultivation can result in significantly improved resource use efficiency (surface, water, and nutrients) as compared to traditional growing systems, but illumination costs are still high. LEDs (light emitting diodes) are gaining attention for indoor cultivation because of their ability to provide light of different spectra. In the light spectrum, red and blue regions are often considered the major plants’ energy sources for photosynthetic CO 2 assimilation. This study aims at identifying the role played by red:blue (R:B) ratio on the resource use efficiency of indoor basil cultivation, linking the physiological response to light to changes in yield and nutritional properties. Basil plants were cultivated in growth chambers under five LED light regimens characterized by different R:B ratios ranging from 0.5 to 4 (respectively, RB 0.5 , RB 1 , RB 2 , RB 3 , and RB 4 ), using fluorescent lamps as control (CK 1 ). A photosynthetic photon flux density of 215 µmol m −2 s −1 was provided for 16 h per day. The greatest biomass production was associated with LED lighting as compared with fluorescent lamp. Despite a reduction in both stomatal conductance and PSII quantum efficiency, adoption of RB 3 resulted in higher yield and chlorophyll content, leading to improved use efficiency for water and energy. Antioxidant activity followed a spectral-response function, with optimum associated with RB 3 . A low RB ratio (0.5) reduced the relative content of several volatiles, as compared to CK 1 and RB ≥ 2. Moreover, mineral leaf concentration (g g −1 DW) and total content in plant (g plant −1 ) were influences by light quality, resulting in greater N, P, K, Ca, Mg, and Fe accumulation in plants cultivated with RB 3 . Contrarily, nutrient use efficiency was increased in RB ≤ 1. From this study it can be concluded that a RB ratio of 3 provides optimal growing conditions for indoor cultivation of basil, fostering improved performances in terms of growth, physiological and metabolic functions, and resources use efficiency.

KW - Energy use efficiency (EUE)

KW - Land surface use efficiency (SUE)

KW - Nutrient use efficiency (NUE)

KW - Ocimum basilicum L.

KW - Plant factories with artificial lighting (PFALs)

KW - Water use efficiency (WUE)

U2 - 10.3389/fpls.2019.00305

DO - 10.3389/fpls.2019.00305

M3 - Article

VL - 10

JO - Frontiers in Plant Science

JF - Frontiers in Plant Science

SN - 1664-462X

M1 - 305

ER -