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(D) The production of 'bonsai' plants involves restricting the growth of the plant to keep it small. Drastic pruning of the root system is a key techn

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Deficiency of cytokinins

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(D) The production of 'bonsai' plants involves restricting the growth of the plant to keep it small. Drastic pruning of the root system is a key technique used for this purpose. Roots are the primary site for the synthesis of cytokinins,which are plant hormones that promote cell division and shoot growth. By pruning the roots,the plant's ability to synthesize and transport adequate amounts of cytokinins to the aerial parts is significantly reduced. This deficiency of cytokinins leads to stunted growth and the characteristic small size of 'bonsai' plants.

Several horticultural techniques are followed for the production of 'bonsai' plants. One of them is the drastic pruning of the root system. Which of the following physiological factors is involved in that method?

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