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Q.
When a plant is not reproducing most of the cytokinins are produced in its :
Plant Growth and Development
Solution:
The substance was named Cytokinin and it is involved in cell division and in the making of new plant organs, like a root or a shoot. Cytokinins are produced in the root apical meristems (very tip of the roots) and travel upward hitching a ride with water and traveling up the stem through the xylem.
So, the correct option is 'roots'.