What are the functions of cytokinins?

What are the functions of cytokinins ?
A. 1) Cytokinins are capable of stimulating cell division along with auxins.
2) They promote cell elongation.
3) They have ability to delay the process of ageing in leaves.
4) Cytokinins can prolong the life of fresh leaf crops like cabbage, spinach.
5) They are also used for keeping the flowers fresh. '
6) Cytokinins are most effective in breaking dormancy of buds and seeds.
7) The levels of cytokinins decrease in senescing leaves.