Give an account of the significance of double fertilisation?
Significance of double fertilisation: After double fertilisation, the development of the endosperm starts when it is required by developing embryo. It ensures that nutritive tissue is formed. It is an advanced character over gymnosperms where endosperm develops before fertilisation. If fertilisation fails, the energy spent on endosperm development gets wasted; while in angiosperms it develops after double fertilisation. Double fertilisation provides the characteristics of male plants as well as the nutritive tissue.
