  The running coupling of the Wilson fermon(JLQCD/CP-PACS) and that of
Kogut-Susskind(KS) fermion(MILC) are measured in the lattice Landau gauge QCD
in $\widetilde{MOM}$ scheme. The quark propagator of the KS fermion is also
measured and we find that it is infrared suppressed. The renormalization factor
of the running coupling and the tadpole renormalization define the scale of the
quark wave function. Effects of the $A_\mu^2$ condensates of a few GeV$^2$ are
observed in the running coupling and also in the quark propagator.
