Question

what happens if the branches of tree are cut off​

Answer 1

Answer:

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When you cut off a tree branch, the tree develops a special callous tissue—along the lines of a scar—which covers wounds in order to keep out decay and disease. Proper pruning is essential to the tree's ability to grow new branches, and incorrect pruning will increase the tree's vulnerability to disease and pests.

Answer 2

Answer:

I’m going to be more generous with my assumption of the meaning of your question. I’m going to answer assuming that you mean what happens of all SIDE branches are cut off of a tree. Cutting everything off would make it not a tree anymore. What I’m assuming you are talking about is cutting a tree to force all it’s energy into growing height from the central shoot, which is what cutting all the side branches would sort of do. You are creating a fishing pole from your tree.

This can be done, but there are several problems. One is that cutting of most of a tree’s growth will definitely slow down it’s growth. A tree left alone and allowed to grow side branches, and only removing them slowly as it gains height is much better. It might beat a fish pole tree up into the sky. Another thing is the tendency of trees to resprout heavily seemingly just to thwart what you are trying to do. The harder you prune them, the more they will try to sprout back in the places you’ve cut. This is most obvious when you try to cut a tree back at the top, like it was mis-planted under some overhead power lines. The power companies(one’s with a clue) have figured out that cutting to train the branches off to the side works out much better in the long run than just simply “topping” them. Trimming off side sprouts excessively, like ALL OF THEM, will just cause the tree to try to sprout many more. Almost all trees that are destine to be shade or ornamental do need to have the lower limbs removed, so people can walk under them, and cars, etc can drive under them if they are street side trees. The lower limbs of a young tree do not move up the trunk, a tree’s truck cannot stretch, so the apparent similar appearance of young and mature trees are due to pruning the lower limbs.

The way to prevent the tree’s trying to thwart your pruning efforts is to sort of sneak up on it, and only remove a small percentage of the lower branches each given year. A tree won’t even notice missing 10 percent of its branches. Possibly not 15 or 20 percent either. Thus if the lower 10–20 percent of the total crown is removed in a season, usually mid summer or mid winter, but it depends on the climate and tree species, it will not do much to resprout from near those removed lower limbs.

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