  Consequences of the constraint of SU(3) colour singletness of quark-gluon
plasma are studied. This restriction increases the free energy barrier for the
formation of hadronic bubble in supercooled phase and influences significantly
the dynamics of the initial stage of quark-hadron phase transition. It also
introduces terms dependent on the volume occupied by the plasma in the energy
density and the pressure. These modifactions vanish in the limit of an infinite
volume. The last stage of the hadronization of the QGP likely to be formed in
relativistic heavy ion collisions is necessarily characterized by a decreasing
volume containing the quark matter, and thus these corrections become
important. The nucleation of plasma droplets at AGS energies is also seen to be
strongly affected by the requirement of colour singletness, and the choice of
prefactor.
