At the time of anther dehiscence

What is the meant by anther dehiscence?

What are the different types of anther dehiscence?

At the time of dehiscence winged pollen grain of Pinus is

At the time of dehiscence winged pollen grain of Pinus is

At the time of dehiscence winged pollen grain of Pinus is

At the time of dehiscence winged pollen grain of Pinus is

In most of the angiosperms , the mature anther at the time of dehiscence has

In most of the angiosperms , the mature anther at the time of dehiscence has

Poricidal type of anther dehiscence is present in:

A pollen grain in angiosperm at the time of dehiscence from an anther could be 2- celled or 3 celled . Explain . How are the cells placed within the pollen grain when shed at -a 2 - celled stage ?