QCD CORRECTIONS IN SUPERSYMMETRIC THEORIES

I discuss the effects of QCD radiative corrections in Supersymmetric t heories. After summarizing the SUSY-QCD lagrangian in the Minimal Supe rsymmetric extension of the Standard Model, I will discuss the new fea tures introduced by SUSY, and the main complications compared to stand ard QCD corrections. I will then discuss a few examples of QCD calcula tions in SUSY theories, for standard processes and for processes invol ving SUSY particles including the extended Higgs sector.