Explain the scope of Botany taking plant physiology as example.

* Role of minerals in plant nutrition is useful in rational usage of chemical fertilizers and control of mineral deficiencies.
* Knowledge on the role of plant hormones is useful in
a) herbicidal control of weeds
b) breaking of seed dormancy
c) Enhancement of shelf life period of leafy vegetables
d) Artificial ripening of fruits
e) Rooting of stem cuttings for vegetative propagation