What are these bumps?

[Ozzy2001]

Is this just roots trying to form or the stem hardening up?

 

[CAPCOM]

I'll buy that.

 

[President Trump]

Roots

 

[Rymerpt]

Them thar Lepricon eggs. Let um hatch, set out some Irish whiskey, and wait for the fun to ensue.

 

[D3monic]

I zoomed in and they look like roots. 

 

[KrakenPeppers]

Roots probably from stretching out of the soil and dirt and water splashing up, keeping root nodgels forming

 

[Ozzy2001]

Thanks guys.

 

[suchen]

Two years ago I had something which looked very similar and turned out to be scale insects. I agree though with the other posters that yours look much more like root nubs.