  The influence of nuclear effects on the transverse momentum $(p_T)$
distributions of neutrinoproduced hadrons is investigated using the data
obtained with SKAT propane-freon bubble chamber irradiated in the neutrino beam
(with $E_{\nu}$ = 3-30 GeV) at Serpukhov accelerator. Dependences of $<p_T^2>$
on the kinematical variables of inclusive deep-inelastic scattering and of the
produced hadrons are measured. It has been observed, that the nuclear effects
cause an enhancement of $<p_T^2>$ of hadrons (more pronounced for the
positively charged ones) produced in the target fragmentation region at low
invariant mass of the hadronic system (2 $< W <$ 4 GeV) or at low energies
transferred to the current quark (2 $< \nu < 9$ GeV). At higher $W$ or $\nu$,
no influence of nuclear effects on $<p_T^2>$ is observed. Measurement results
are compared with predictions of a simple model, incorporating secondary
intranuclear interactions of hadrons (with a formation length extracted from
the Lund fragmentation model), which qualitatively reproduces the main features
of the data.
