List the changes observed in angiosperm flower subsequent to pollination and fertilisation.

Explanation

Event in sexual Reproduction after formation of zygote are called post fertilisation events. They are
1) Calyx, Corolla, Stamens, style and stigma wither away.
2) Ovary develops into fruit.
3) Ovules develop into seeds.
4) The zygote develops into an embryo.
5) Primary endosperm nucleus develops into endosperm which provids nourishment to the developing embryo.
6) The synergid and antipodals degenerate after fertilization.
Funicle of the ovule changes into stalk of the seed.
8) Outer antegument of the ovule changes into testa (outer seed coat). Inner integument changes into Inner seed coat (Tegmen).
9) Micropyle changes into seed pore.
10) Hilum changes into scar of the seed.