CLOUDS HILL IMAGING LTD / SCIENCE PHOTO LIBRARY CLOUDS HILL IMAGING LTD / SCIENCE PHOTO LIBRARY
Timelapse footage of the growth of new side shoots after the pruning of the growing tip of a plant. The growing tip grows strongly upwards and releases hormones that suppress the growth of side shoots, to help the plant direct its growth upwards to out-compete nearby plants for available light. If the top growth is cut, the suppressing hormones are absent, and the plant grows side shoots that, as seen here, continue the upward growth.
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