Given a p-solvable group G and an irreducible Brauer character χ of G with respect to the prime p.It is proved in this paper that the degrees of irreducible constituents of the restriction of χ to an arbitrary subgroup N in G can be controlled by some conditions on N and on the normalizer of N in G.This finding has not only promoted Dolfi theorem from complex characters to Brauer characters

it has also generalized Clifford theorem on Brauer characters in p-solvable groups.