Far-Red Light Crucial for Strawberry Growth, Quality

Studies show timing and direction of far-red light exposure significantly affect plant performance

Published on Feb. 27, 2026

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New research from the University of Wyoming has found that the timing and direction of far-red light exposure can significantly impact the growth, quality, and nutrient uptake of June-bearing strawberries. The studies highlight that far-red light is not just a supplement to standard lighting, but a factor that must be precisely managed to optimize fruit yield and quality.

Why it matters

As LED technology enables more precise control over light quality, understanding the role of far-red light in strawberry cultivation can help growers refine their controlled-environment practices to improve productivity and resource efficiency.

The details

The studies showed that carefully timed applications of far-red light can enhance strawberry plant growth, improve fruit quality, and support nutrient uptake. Experiments on light direction also found that where far-red light is delivered - whether from above, below, or laterally - can strongly influence plant architecture and fruit development.

  • The full article was published on February 20, 2026.

The players

Dr. Karimi

A Research Scientist in the Department of Plant Sciences, College of Agriculture, Life Science, and Natural Resources at the University of Wyoming. His research focuses on studies on the flower bud formation mechanisms of temperate fruit crops and physiological performance of temperate fruit crops under conditions of the central region of Afghanistan.

American Society for Horticultural Science (ASHS)

An established professional society for horticultural scientists, committed to promoting and encouraging national and international interest in scientific research and education in all branches of horticulture.

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What they’re saying

“Together, the findings highlight that far-red light is not only a supplement to standard lighting but also a factor that must be precisely managed. Optimizing both the timing and direction of far-red exposure offers growers new strategies to improve fruit yield and quality while supporting efficient resource use in production systems.”

— Dr. Karimi, Research Scientist (ASHS HortTechnology electronic Journal)

The takeaway

This research demonstrates the importance of carefully controlling light quality, particularly far-red light, in strawberry cultivation. By optimizing the timing and direction of far-red light exposure, growers can enhance plant performance, improve fruit yield and quality, and support more efficient resource use in their controlled-environment production systems.