  Magnetoresistance and magnetocaloric properties of polycrystalline HoRhGe
have been studied. This compound orders antiferromagnetically with a Neel
temperature (TN) of 5.5 K and undergoes a first order metamagnetic transition
at 2 K. It shows a large negative magnetoresistance of 25% at TN, for a field
of 50 kOe. However, at 2 K and in lower fields, the magnetoresistance is found
to be positive with a magnitude of about 12%, which is attributed to the first
order metamagnetic transition. The compound also shows large magnetocaloric
effect near its Neel temperature. Field dependence of magnetic entropy change
also reflects the change in the nature of magnetic transition as the field is
increased. The value of magnetic entropy change (-{\Delta}SM) is found to be
11.1 J/kg K for a field change of 50 kOe. Field dependence of magnetoresistance
and magnetocaloric effect clearly shows the change in the order of the
metamagnetic transition with increase in field.
