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- Title
Effect of light emitting diodes (LEDs) on postharvest needle retention of balsam fir (Abies balsamea L.).
- Authors
Veitch, R. Scott; Lada, Rajasekaran R.; MacDonald, Mason T.
- Abstract
Two experiments were conducted to understand the effect of light emitting diodes on postharvest abscission in balsam fir (Abies balsamea L.) branches. In one experiment, branches were pre-exposed to the fluorescent light, LEDs, or darkness for 1, 4, 8, 12, 24, or 48 h. In a second experiment, branches were constantly exposed to fluorescent lights, LEDs, or darkness. The response variable was needle retention duration (NRD). A 48-hour exposure time to red, white, or blue LEDs significantly (P < 0.001) increased NRD by approximately 75, 118, or 127%, respectively, compared to a cool white fluorescent lighting or darkness. Constant exposure to any LED significantly (P < 0.001) improved NRD compared to fluorescent lights or darkness, though white and red LEDs were most effective. It is speculated that LED-promoted needle retention could possibly be due to changes in carbohydrate synthesis similar to those observed during cold acclimation.
- Subjects
BALSAM fir; LIGHT emitting diodes; ABSCISSION (Botany); FLUORESCENT lighting; EFFECT of light on plants
- Publication
Journal of Applied Horticulture, 2013, Vol 15, Issue 1, p13
- ISSN
0972-1045
- Publication type
Article