Angelina observes that her gardener cuts the tips of her ornamental plants at regular intervals of about 10–15 days. When she asks him why he does this, he tells her that this allows the tree to grow faster and bushier. How would you explain this scientifically?
Auxin is the plant hormone that causes elongation of the cells in the plant and it helps regulate the plants growth. Auxin is released from the tip of the branches and travels downwards, it elongates the stem and inhibits the growth of new cells in the other stems, so basically there is more vertical elongation than horizontal growth. In order to make the plant bushier, so to speak, the Gardner cuts off the tips of the longer stems in an act called pruning. what this does is that the auxin from the shorter stems are now able to act and there is more equal growth. I hope I made some sense Maybe you'de like to check out ` http://www.moleclues.org/news/why-does-pruning-help-plants-grow-bushy ` for a more clear explanaation
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