Are these indoors? in a green house? outside on a patio?
With it still being early spring you will want to consider last frost dangers when wanting to remove their protective cover.
If you were in southern California, or anywhere along the gulf coast I would say yes it is safe to remove those covers.
Anywhere else, check to determine when there will definitely not be a possibility of frost.
Right now those are tender young shoots, treat them like the babies they are and you will do fine.
If you have them in a protected area that frost can't get to them, remove the cover from the branch but leave the soil covered to retain the moisture so you don't need to worry about it drying out and them dying of thirst.
Bryant RedHawk wrote:Are these indoors? in a green house? outside on a patio?
Ope, that all seems very important.
They are indoors. I started them in an east facing window, and moved them to a south facing window yesterday. I don’t plan on taking them outside for about a month or so (Michigan- US).
I’ll take your advice in your last sentence. Would you recommend covering the pot with same plastic bag, or throwing some mulch on top of the soil to retain moisture? Is it important for the soil to be able to have some air at this point?