Authors: Shafieh Salehinia, Fardad Didaran, sasan aliniaeifard, mark lefsrud,
Identifier: CSBE23100
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Published in: CSBE-SCGAB Technical Conferences » AGM Lethbridge 2023

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Description: Light quality has a highly complicated impact on plant physiology and light emitting diodes (LEDs) can provide a specific light spectrum, rendering them ideal for studying the effect of light quality on plant responses. Stomatal behavior is critical in balancing a plant's need for water conservation while allowing for photosynthetic and respiratory gas exchange. Many researchers have investigated the stomatal response to red and blue light, yet little data on green light plant stomatal responses exists, particularly with post-harvest storage. This research aimed to examine lettuce (Lactuca sativa) and basil (Ocimum basilicum) plants' stomatal opening response to varying light quality (430, 630, 500, 530, 560 nm) and quantity (50, 75, 100, 400 ?mol m-2s-1) and determine wavelengths that result in reduced stomatal opening. Data demonstrate that the stomatal aperture increased when treated with blue and red light, yet decreased with green light (530?560 nm) at a lower intensity. These findings imply that the postharvest quality of leafy greens can be preserved and shelf life extended using wavelengths in the green spectrum with lower intensity LEDs, likely by minimizing respiration rate and water loss postharvest via stomata closure.

Keywords: Basil, Green lights, Lettuce, Light quality, Stomata opening, LEDs.
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Date: 2023-07-23
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Conference name: CSBE/SCGAB 2023 Annual Conference, Lethbridge, Alberta, 23-26 July 2023.
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Type: Presentation
Publication type: Text.Abstract
Coverage: North_America
Language 1: en
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Rights: Canadian Society for Bioengineering
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