  We study the one-loop radiative corrections to pair production of the
supersymmetric scalar partners of the standard fermions in e+e- annihilation.
Both electroweak and SUSY-QCD corrections are considered. Applications are for
production of scalar fermions of the third generation, $e^+e^-\to \wt{f}_i
\wt{f}_j^*$ (i,j=1,2), $f=t, b,\tau$, as well as for production of scalar
quarks of the first and second generation. Effects on integrated cross sections
are discussed and also the one-loop induced forward-backward asymmetries are
studied. It is found that at low energy, \sqrt{s}\approx 500 \to 1000 GeV, the
corrections are dominated by the QCD contributions, At high energy,
$\sqrt{s}\geq 2$ TeV, the electroweak box diagrams give a substantial
contribution and even dominate in some regions of parameters space. The purely
loop-induced forward-backward asymmetry can reach values of several per cent.
