Keen, a fan makes the stems thicker and tougher. Not heard about roots, but it kinda makes sense. Even a fair breeze (vs "gentle wafting") will do more good than harm, unless you let it dry out the cells.
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Originally Posted by Cole_Robbie
Do sprouts need light to know which direction is up? Or can they sense gravity?
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IIRC they tried this in orbit, and they do sense gravity.