Solution

Anthesis is the opening of a flower bud, when the flower becomes fully open and functional.
At anthesis the anthers usually dehisce and the stigma becomes receptive, so pollination can take place.
Formation of pollen is microsporogenesis; development of the anther is a part of flower development; reception of pollen by the stigma is pollination.
So anthesis refers to the opening of the flower bud.

Concept Meaning of anthesis

Sexual Reproduction in Flowering Plants in past papers

126 questions from this chapter have appeared across 26 exam years.