DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Influence of Supplementary Blue and Far-Red Light on the Morphology and Texture of Ocimum basilicum L. Grown in Controlled Environments

Journal Article · · Horticulturae

Basil (Ocimum basilicum L.) is highly sensitive to environmental conditions and is an ideal candidate for cultivation in controlled environment agriculture (CEA). Light-emitting diode technology has become essential in CEA, offering precise control over light intensity, spectrum, and duration. This study investigated how supplemental blue light, far-red light, or their combination influences basil biomass, morphology, texture, and color when added to a white + red light spectrum. Basil ’Prospera’ and ’Amethyst’ were exposed to five light treatments for 14–28 days: white + red at 180 µmol∙m−2∙s−1 (W) as the control, and four treatments with an additional 60 µmol∙m−2∙s−1 of either white + red (+W60), blue (+B60), far-red (+FR60), or a combination of B and FR (+B30+FR30), for a total photon flux density of 240 µmol∙m−2∙s−1. The results demonstrated that +B60 and +W60 light treatments increased leaf thickness by 17–20% compared to the +FR60 treatment. Conversely, texture analysis revealed that +FR60-treated leaves had higher puncture resistance, with ’Amethyst’ and ’Prospera’ requiring 1.57 ± 0.43 N and 1.45 ± 0.35 N of force, respectively, compared to 1.19 ± 0.32 N and 1.1 ± 0.21 N under +B60. These findings suggest that tailored light recipes in CEA can optimize basil quality, allowing growers to modify traits like leaf color, thickness, and toughness.

Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0014664
OSTI ID:
2528128
Journal Information:
Horticulturae, Journal Name: Horticulturae Journal Issue: 3 Vol. 11; ISSN 2311-7524; ISSN HORTCF
Publisher:
MDPI AGCopyright Statement
Country of Publication:
Country unknown/Code not available
Language:
English

References (54)

Texture, composition and anatomy of spinach leaves in relation to nitrogen fertilization
  • Gutiérrez‐Rodríguez, Eduardo; Lieth, Heiner J.; Jernstedt, Judith A.
  • Journal of the Science of Food and Agriculture, Vol. 93, Issue 2 https://doi.org/10.1002/jsfa.5780
journal July 2012
Medicinal, Aromatic and Stimulant Plants book January 2020
Photosynthetic and growth responses of green and purple basil plants under different spectral compositions journal February 2019
Plasticity of photosynthetic processes and the accumulation of secondary metabolites in plants in response to monochromatic light environments: A review journal February 2020
A review of visual cues associated with food on food acceptance and consumption journal January 2014
Substituting green or far-red radiation for blue radiation induces shade avoidance and promotes growth in lettuce and kale journal June 2019
Far-red light and temperature interactively regulate plant growth and morphology of lettuce and basil journal February 2024
Cell wall structure and composition is affected by light quality in tomato seedlings journal January 2020
Far-red light is needed for efficient photochemistry and photosynthesis journal February 2017
Hydroponic farming – A state of art for the future agriculture journal January 2022
Innovative advances in LED technology journal February 2005
Photocycle and signaling mechanisms of plant cryptochromes journal October 2016
Influence of blue/red vs. white LED light treatments on biomass, shoot morphology, and quality parameters of hydroponically grown kale journal May 2018
Promotion of lettuce growth under an increasing daily light integral depends on the combination of the photosynthetic photon flux density and photoperiod journal October 2020
Morphological and physiological response in green and purple basil plants (Ocimum basilicum) under different proportions of red, green, and blue LED lightings journal January 2021
Optimization of basil (Ocimum basilicum L.) production in LED light environments – a review journal November 2021
A review on the effects of light-emitting diode (LED) light on the nutrients of sprouts and microgreens journal May 2020
Phytochromes and light signal perception by plants—an emerging synthesis journal October 2000
The life and times of the LED — a 100-year history journal April 2007
The function of phytochrome in regulation of plant growth. journal November 1967
Specific Leaf Area and Dry Matter Content Estimate Thickness in Laminar Leaves journal September 2005
Chlorophyll fluorescence—a practical guide journal April 2000
Phytochrome functions in Arabidopsis development journal October 2009
Green Light Drives Leaf Photosynthesis More Efficiently than Red Light in Strong White Light: Revisiting the Enigmatic Question of Why Leaves are Green journal February 2009
Plant Flavoprotein Photoreceptors journal December 2014
Basil: A Brief Summary of Potential Health Benefits journal March 2018
Blue Light-Dependent in Vivo and in Vitro Phosphorylation of Arabidopsis Cryptochrome 1 journal October 2003
Phytochrome-mediated inhibition of shade avoidance involves degradation of growth-promoting bHLH transcription factors: PIF stability regulates shade avoidance journal October 2007
The shade-avoidance syndrome: multiple signals and ecological consequences: Neighbour detection and shade avoidance journal March 2017
Cryptochromes: Blue Light Receptors for Plants and Animals journal April 1999
Photoreceptor Signaling Networks in Plant Responses to Shade journal April 2013
Antimicrobial Activity of Basil (Ocimum basilicum) Oil againstSalmonellaEnteritidisin Vitroand in Food journal June 2010
Basil (Ocimum basilicum L.) a Source of Valuable Phytonutrients journal May 2017
Consumer Acceptability of Aquaponically Grown Basil journal June 2020
Effects of Supplemental Light Source on Basil, Dill, and Parsley Growth, Morphology, Aroma, and Flavor journal January 2020
Blue Radiation Interacts with Green Radiation to Influence Growth and Predominantly Controls Quality Attributes of Lettuce journal March 2020
Light Quality Dependent Changes in Morphology, Antioxidant Capacity, and Volatile Production in Sweet Basil (Ocimum basilicum) journal September 2016
Long-Term Effects of Red- and Blue-Light Emitting Diodes on Leaf Anatomy and Photosynthetic Efficiency of Three Ornamental Pot Plants journal May 2017
Response of Basil Growth and Morphology to Light Intensity and Spectrum in a Vertical Farm journal December 2020
Adding Far-Red to Red-Blue Light-Emitting Diode Light Promotes Yield of Lettuce at Different Planting Densities journal January 2021
Photosynthetic Physiology of Blue, Green, and Red Light: Light Intensity Effects and Underlying Mechanisms journal March 2021
Variation in supplemental lighting quality influences key aroma volatiles in hydroponically grown ‘Italian Large Leaf’ basil journal June 2023
Editorial: Current and future perspectives for controlled environment agriculture (CEA) in the 21st century journal November 2023
Growth of Hydroponic Sweet Basil (O. basilicum L.) Using Plasma-Activated Nutrient Solution (PANS) journal February 2023
The Growth and Development of Sweet Basil (Ocimum basilicum) and Bush Basil (Ocimum minimum) Grown under Three Light Regimes in a Controlled Environment journal November 2019
In Search of Optimum Fresh-Cut Raw Material: Using Computer Vision Systems as a Sensory Screening Tool for Browning-Resistant Romaine Lettuce Accessions journal July 2024
Effects of Light Quality on Growth and Phytonutrient Accumulation of Herbs under Controlled Environments journal June 2017
Effects of Light-Emitting Diodes on the Accumulation of Phenolic Compounds and Glucosinolates in Brassica juncea Sprouts journal November 2020
Hydroponic Basil Production: Temperature Influences Volatile Organic Compound Profile, but Not Overall Consumer Preference journal January 2022
Light Induced Regulation Pathway of Anthocyanin Biosynthesis in Plants journal October 2021
LED Illumination Spectrum Manipulation for Increasing the Yield of Sweet Basil (Ocimum basilicum L.) journal February 2021
Far-Red Light Effects on Lettuce Growth and Morphology in Indoor Production Are Cultivar Specific journal October 2022
Effect of Duration of LED Lighting on Growth, Photosynthesis and Respiration in Lettuce journal January 2023
The Effect of Supplemental Blue, Red and Far-Red Light on the Growth and the Nutritional Quality of Red and Green Leaf Lettuce journal January 2019