Manifestations of bulk crystalline regions with stacking faults are detecte
d in the reflection and photoluminescence spectra of CdS1-xSex crystals wit
h a variety of compositions. The magnitude of the crystal-field anisotropy
and the spin-orbit splitting in these crystals are estimated. It is shown t
hat reabsorption affects the form of the photoluminescence in crystals with
stacking faults. (C) 1999 American Institute of Physics. [S0021-3640(99)01
215-3].