  In this paper, we first demonstrate the existence of renormalization group
invariant relations among the top, bottom Yukawa and the gauge colour couplings
in the minimal supersymmetric SM. Based on this observation and assuming
furthermore the existence of a renormalization group invariant relation among
the trilinear couplings in the superpotential and the soft supersymmetry
breaking sector, we obtain predictions for the Higgs masses and the
supersymmetric spectrum.
