Depends on how you do it, but the seed should be done in 12-48 hours. Basically When the shell of it has broken an you can start to see the white root thing coming out, although i like for them to be a lil bet longer than that u really shouldn't continue to germinate/soak them after it has cracked an spouted out of its shell.
search up cotyledon :) Edited answer: When a seed sprouts, it is the radicle of the embryo comming out first.
germinating seed absorb a lot of their nutrients from the cotyledons during the first stages of germination
Germination is the point at which the plant starts to grow from the seed.
Geotropism
The seed would stop growing.
You should seed, wait for the seed to germinate, and then apply your fertiliser. Some fertilisers also contain weed killer which will prevent grass seed germinating.
search up cotyledon :) Edited answer: When a seed sprouts, it is the radicle of the embryo comming out first.
protein
germinating seed absorb a lot of their nutrients from the cotyledons during the first stages of germination
migration
It is radicle or root emerging first from the seed
A seed will need water,air and warmth to start germinating.
The contents of a seed are used up after germination by the seedling growing from it.
Germination is the point at which the plant starts to grow from the seed.
It's pretty simple really, the germination process allows the seed time to grow without any fertilizer, when done germinating the seed is healthy enough to be planted in soil.
BUD OF GERMINATING WHEAT SEED
the radicle