Question

Any 2 stem modifications for vegetative propagation

Answer 1

we can get seedless plants by artificial propagation
the new plant produced by artificial vegetative propagation will be exactly like the parent plant and it desirable feature of the parent plant will be replicated in the new plant .

money plants can be grown from just one parent plant

Answer 2

Your answer is here

1) Aerial Stem Modifications

2) Sub Aerial Stem Modifications