Leaning toward the light |
Why do plants lean toward the light? It involves a chemical called auxin in the cells of plants. It causes the plant to have elongated cells on the side away from the light. Growth toward the light is called positive phototropism and growth away from it is called negative phototropism. Usually roots have negative phototropism. I have discovered, when looking on line, that philodendron and monstera seedlings also exhibit negative phototrophism as they are looking for a tree to climb. By finding the shadow of a tree, they will eventually be lead to the tree which they need for support. How interesting! (You learn something new everyday!)
I'm going to pay attention, and notice how long it takes my croton to turn back toward the light. Will it take a day, a week, or longer?
Turned away from the light. |
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