What do you understand by development in plants

What do you understand by development in plants. Mention the difference between two types of development shown by the plants.

Development is the sequence of events that occur in the life history of a cell, organ or organism, which includes growth, differentiation, maturation and senescence.
(i) In homoblastic development the transition from juvenile to adult phase is gradual.
[ii) In heteroblastic development the transition is abrupt.