After the pollen lands on a suitable stigma, it has to reach the female germ-cells which are in the ovary. For this, a tube grows out of the pollen grain and travels through the style to reach the ovary.
The male germ-cell produced by pollen grain fuses with the female gamete(egg) present in the ovule.
This fusion of the germ-cells or fertilisation gives the zygote.
After fertilisation, the zygote divides several times to form an embryo within the ovule.
The ovule develops a tough coat and is gradually converted into a seed.The ovary grows rapidly and ripens to form a fruit.
Meanwhile, the petals, sepals, stamens, style and stigma may shrivel and fall off during this process.
