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Volume 11
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10.3390/horticulturae11091121
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Article

The Influence of Solar Radiation Modulation Using Double-Roof Light Conversion Films on the Pre- and Post-Harvest Fruit Quality of Strawberry (Fragaria × ananassa cv. Marimbella)

by
Hafsa El Horri
1,†,
Gemma Bianchi
1,†,
Marta Florio
1,
Alessio Malfanti
1,
Costanza Ceccanti
1,2,*,
Ermes Lo Piccolo
3,
Samuele Risoli
1,
Cristina Nali
1,2,
Marco Landi
1,2,* and
Lucia Guidi
1,2
1
Department of Agriculture, Food and Environment, University of Pisa, 56124 Pisa, Italy
2
Nutrafood Interdepartmental Research Centre “Nutraceuticals and Food for Health”, University of Pisa, 56124 Pisa, Italy
3
Department of Agriculture, Food, Environment and Forestry, University of Florence, 50144 Florence, Italy
*
Authors to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Horticulturae 2025, 11(9), 1121; https://doi.org/10.3390/horticulturae11091121
Submission received: 6 August 2025 / Revised: 10 September 2025 / Accepted: 12 September 2025 / Published: 15 September 2025
(This article belongs to the Special Issue Optimization of Horticultural Plant Production in Controlled Environments Using Proximal Sensing)
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Abstract

Light conversion (LC®) films represent a novel approach to modulating the light spectra in protected horticulture. The present study evaluated the effects of two LC® polyethylene films on the growth and fruit quality of Fragaria × ananassa ‘Marimbella’ strawberries, cultivated using a soilless system in a double-roof greenhouse from March to June. The following films were used: blue (B), which converts UV to blue light, and pink (P), which converts UV and green light to blue and red wavelengths. These treatments were compared with a transparent film (T) and an uncovered sample (Control). The B film enhanced net photosynthesis (+9%) and stomatal conductance (+11%) compared to the Control, with no effect on intercellular CO2 concentration or PSII efficiency. Under the B film, fruit yield increased by 34 and 44% compared to the Control and T, respectively, although single fruit weight, fruit width, and fruit height decreased. The P film did not significantly influence the yield but improved fruit quality, increasing soluble solids (+30%) and ascorbic acid (+29%) content compared to the Control and T, respectively. At harvest time, both LC® films promoted the accumulation of total phenolic content (+17% vs. T). At the same time, the highest antioxidant activity was observed in Control fruits. Notably, the B film reduced post-harvest Botrytis cinerea development (−37% vs. T) at 72 h after inoculation. These findings highlight the potential of LC®—particularly the B film—to be used as a sustainable tool to improve yield, quality, and post-harvest disease resistance in greenhouse strawberry production systems.
Keywords: double-roof system; physiological responses; post-harvest fruit quality; blue light; red light double-roof system; physiological responses; post-harvest fruit quality; blue light; red light

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MDPI and ACS Style

El Horri, H.; Bianchi, G.; Florio, M.; Malfanti, A.; Ceccanti, C.; Lo Piccolo, E.; Risoli, S.; Nali, C.; Landi, M.; Guidi, L. The Influence of Solar Radiation Modulation Using Double-Roof Light Conversion Films on the Pre- and Post-Harvest Fruit Quality of Strawberry (Fragaria × ananassa cv. Marimbella). Horticulturae 2025, 11, 1121. https://doi.org/10.3390/horticulturae11091121

AMA Style

El Horri H, Bianchi G, Florio M, Malfanti A, Ceccanti C, Lo Piccolo E, Risoli S, Nali C, Landi M, Guidi L. The Influence of Solar Radiation Modulation Using Double-Roof Light Conversion Films on the Pre- and Post-Harvest Fruit Quality of Strawberry (Fragaria × ananassa cv. Marimbella). Horticulturae. 2025; 11(9):1121. https://doi.org/10.3390/horticulturae11091121

Chicago/Turabian Style

El Horri, Hafsa, Gemma Bianchi, Marta Florio, Alessio Malfanti, Costanza Ceccanti, Ermes Lo Piccolo, Samuele Risoli, Cristina Nali, Marco Landi, and Lucia Guidi. 2025. "The Influence of Solar Radiation Modulation Using Double-Roof Light Conversion Films on the Pre- and Post-Harvest Fruit Quality of Strawberry (Fragaria × ananassa cv. Marimbella)" Horticulturae 11, no. 9: 1121. https://doi.org/10.3390/horticulturae11091121

APA Style

El Horri, H., Bianchi, G., Florio, M., Malfanti, A., Ceccanti, C., Lo Piccolo, E., Risoli, S., Nali, C., Landi, M., & Guidi, L. (2025). The Influence of Solar Radiation Modulation Using Double-Roof Light Conversion Films on the Pre- and Post-Harvest Fruit Quality of Strawberry (Fragaria × ananassa cv. Marimbella). Horticulturae, 11(9), 1121. https://doi.org/10.3390/horticulturae11091121

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