Promote root growth and inhibit lateral bud growth
Increase the length of stems and improve the shape of fruits
Promote flowering and prevent fruit and leaf drop
Solution
Cytokinins have specific effects on cytokinesis, which is cell division. They were discovered as kinetin from the autoclaved herring sperm DNA and were found to promote cell division in plants. Natural cytokinins are synthesized in regions where rapid cell division occurs, such as root apices, developing shoot buds, young fruits, etc. They help to produce new leaves, chloroplasts in leaves, lateral shoot growth and adventitious shoot formation, and also promote nutrient mobilization, which helps in the delay of leaf senescence.