  We investigate the fermionic decays of top squarks tilde t_{1,2} and bottom
squarks tilde b_{1,2}$ in the Minimal Supersymmetric Standard Model with
complex parameters M_1, mu, A_t and A_b . In the analysis we particularly take
into account the cosmological bounds imposed by WMAP data. We plot the CP phase
dependences of stop and sbottom decay widths.
