  We investigate the performance of continuous variable quantum key
distribution scheme in a practical setting. More specifically, we take
non-ideal error reconciliation procedure into account. The quantum channel
connecting the two honest parties is assumed to be lossy but noiseless. Secret
key rates are given for the case that the measurement outcomes are postselected
or a reverse reconciliation scheme is applied. The reverse reconciliation
scheme loses its initial advantage in the practical setting. If one combines
postselection with reverse reconciliation however, much of this advantage can
be recovered.
