Question

Mention the important post fertilization changes in the flower

Answer 1

After fertilization, the following changes are observed in a flower:
1) There is formation of a diploid zygote and it develops into an embryo, which forms the future plant.
2) The endosperm cells serve as a source of nutrition for the developing embryo.
3) The ovule becomes the seed.
4) The ovary becomes the fruit.
5) In most of the plants the antipodals and synergids disintegrate before, during or immediately after fertilization.
6) The outer and inner integuments of the ovule become the testa or the seed coat of the seed.
7) Petals and sepals fall off.

Answer 2

The post fertilisation events are zygote formation and embryogenesis.
First a diploid zygote is formed and then embryo formation occurs.
Zygote is formed inside the ovule.
During embryogenesis cell division and celld differentiation occurs.
After fertilisation sepals,petals and stamens of flower fall off and only pistil persist.
Zygote develops into embryo.
The ovary develops into a fruit.
Fruit develops a thick layer called pericarp.
I hope it will help u..