Question

how pollen tube is formed​

Answer 1

When the pollen grains stick on the stigma, a tube arises from the pollen grain towards the ovules. This tube is called pollen tube.

Answer 2

$\huge\star\underline{\mathtt\orange{❥Good} \mathfrak\blue{Mo }\mathfrak\blue{r} \mathbb\purple{ n}\mathtt\orange{in} \mathbb\pink{g}}\star\:$

$\huge\fbox \red{✔Que} {\colorbox{crimson}{est}}\fbox\red{ion✔}$

The Question is Give below 

$\huge\color{Red}\boxed{\colorbox{black}{♡Answer ♡}}$

Once a pollen grain has implanted on a compatible stigma, its germination is initiated. During this process, the pollen grain begins to bulge outwards to form a tube-like structure, known as the pollen tube. .

$\huge\color{cyan}\boxed{\colorbox{black}{Mark as Brainlist }}$