Write a note on agricultural/ horticultural applications of auxins.

Auxins help to initiate rooting in stem cuttings used for plant propagation in horticulture.
* Auxins promote flowering in pineapples.
* Prevent fruit and leaf drop at early stages but promote the abscission of older mature leaves and fruits.
* Auxins responsible for apical dominance.
* Auxins induce parthenocarpy in tomatoes.
* Auxins are used as herbicides. Eg : 2,4-D

* Controls xylem differentiation and helps in cell division.