"Pollen grains in wheat are shed at 3- celled stage while in peas they are shed at 2-celled stage". Explain. Where are germ pores are present in a pollen grain?
At the time of shielding wheat pollen consist of one vegetative and two male gametes. While pea pollen consists of one generation cell.
Germ pores are present on the exine (where sporopollein is absent).