  We investigate the relationship of ``physical'' parton densities defined by
kt-factorisation, to those in the minimal subtraction scheme, by comparing
their small-x behaviour. We first summarize recent results on the above scheme
change derived from the BFKL equation at NLx level, and we then propose a
simple extension to the renormalisation-group improved (RGI) equation. In this
way we are able the examine the difference between resummed gluon distributions
in the Q_0 and MSbar schemes and also to show MSbar scheme resummed results for
P_gg and approximate ones for P_qg. We find that, due to the stability of the
RGI approach, small-x resummation effects are not much affected by the
scheme-change in the gluon channel, while they are relatively more sensitive
for the quark-gluon mixing.
