What question did this study set out to answer?

To determine the impact of LED supplemental irradiation on the photosynthetic performance and fruit yield of commercial greenhouse paprika during low-light winter conditions.

July 31, 2026Journal of Bio-Environment ControlOpen Access

LED Supplemental Irradiation Enhances Photosynthetic Efficiency and Fruit Yield in Winter Greenhouse Paprika

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Authors

SWSeung Mi WooWonkwang University JSJi Heon SeoWonkwang University HKHo Cheol KimWonkwang University

Discussion

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Implication

Controlled trial demonstrates enhanced photosynthetic efficiency and increased fruit yield in winter greenhouse paprika, indicating a viable method to mitigate seasonal light stress.

Key Points

To determine the impact of LED supplemental irradiation on the photosynthetic performance and fruit yield of commercial greenhouse paprika during low-light winter conditions.
Applied LED supplemental irradiation (250 µmol·m⁻²·s⁻¹, red:white ratio of 3:1) to commercial paprika crops from November 2021 to March 2022 in Korea.
Quantified canopy light distribution (PPFD, red light intensity, red to far-red ratio), gas exchange parameters, Photosystem II quantum yield, and cumulative fruit yield.
LED supplemental irradiation increased canopy photosynthetic photon flux density by 21.4%, stomatal conductance by 45.4% (0.262 to 0.381 mol·m⁻²·s⁻¹), and transpiration rate by 32.9% (1.681 to 2.234 mmol·m⁻²·s⁻¹).
Photosystem II quantum yield increased from 0.665 to 0.695, and the relative electron transport rate rose from 55.1 to 69.9 µmol·m⁻²·s⁻¹.
Cumulative fruit harvest increased by 7.8% (19.3 vs. 17.9 fruits per plant) under supplemental lighting without compromising fruit quality.

Cite This Study

Woo et al. (2026) studied this question.

synapsesocial.com/papers/6a99b9006747813fcde6c549 https://doi.org/10.12791/ksbec.2026.35.3.303

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July 31, 2026Journal of Bio-Environment ControlOpen Access

LED Supplemental Irradiation Enhances Photosynthetic Efficiency and Fruit Yield in Winter Greenhouse Paprika

View Full Paper

Ask AI

Bookmark

Authors

SWSeung Mi WooWonkwang University JSJi Heon SeoWonkwang University HKHo Cheol KimWonkwang University

Discussion

Member takes

Implication

Controlled trial demonstrates enhanced photosynthetic efficiency and increased fruit yield in winter greenhouse paprika, indicating a viable method to mitigate seasonal light stress.

Key Points

To determine the impact of LED supplemental irradiation on the photosynthetic performance and fruit yield of commercial greenhouse paprika during low-light winter conditions.
Applied LED supplemental irradiation (250 µmol·m⁻²·s⁻¹, red:white ratio of 3:1) to commercial paprika crops from November 2021 to March 2022 in Korea.
Quantified canopy light distribution (PPFD, red light intensity, red to far-red ratio), gas exchange parameters, Photosystem II quantum yield, and cumulative fruit yield.
LED supplemental irradiation increased canopy photosynthetic photon flux density by 21.4%, stomatal conductance by 45.4% (0.262 to 0.381 mol·m⁻²·s⁻¹), and transpiration rate by 32.9% (1.681 to 2.234 mmol·m⁻²·s⁻¹).
Photosystem II quantum yield increased from 0.665 to 0.695, and the relative electron transport rate rose from 55.1 to 69.9 µmol·m⁻²·s⁻¹.
Cumulative fruit harvest increased by 7.8% (19.3 vs. 17.9 fruits per plant) under supplemental lighting without compromising fruit quality.

Cite This Study

Woo et al. (2026) studied this question.

synapsesocial.com/papers/6a99b9006747813fcde6c549 https://doi.org/10.12791/ksbec.2026.35.3.303

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