Understanding the Triple Response in Plant Physiology

Jan 09, 2025

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Explore the concept of the triple response in plant physiology through this experimental teaching course at the Centre of Life Sciences. Discover how dark-grown pea seedlings exhibit reduced stem elongation, increased lateral growth, and abnormal horizontal growth, and how they recover in fresh air.

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Understanding the Triple Response in Plant Physiology

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Triple response Course: Plant Physiology Lab Experimental Teaching Centre Of Life Sciences
What is the triple response? • Dark-grown pea seedlings growing in the laboratory exhibited symptoms that were later termed the triple response: reduced stem elongation, increased lateral growth (swelling), and abnormal, horizontal growth. When the plants were allowed to grow in fresh air, they regained their normal morphology and rate of growth.