Increased respiration in the leaves and stems reduce the sugar content in the fruits of a plant because sugars produced in the leaves are used as an energy source instead of being stored in fruits.
What is fruit?
A fruit is a mature, ripened ovary, along with the contents of the ovary. The ovary is the ovule-bearing reproductive structure in the plant flower.
Cellular respiration is the process wherein nutrients (glucose) are oxidized into carbon dioxide and water with release of lots of energy. The released energy is stored in form of ATP which serves as energy currency for cells. Since high temperatures increase the rate of respiration in the plants, sugars produced in the leaves are used as an energy source instead of being stored in fruits.
Learn more about cellular respiration here:
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