Weak interaction in quark models with the observable color

Weak interaction between the quarks of three-and four-triplet model for the case of integer charges for quarks are considered in the most general form. It means, that, e.g., in the case of three triplets all possible ΔQ=1 transitions between quarks are allowed and then weak hadron current contains 20 constants. Further the physical requirements are imposed on these constants. The model is based on the SU-3 group. It is shown, that under definite conditions the neutral current diagonality automatically follows from requirement of fulfilment of SU(2) algebra for the weak charges. The lagrangian of nonlepton interaction for usual hadrons is obtained. For the case of ΔS=1 one succeedes to give in lagrangian the relation corresponding to the experiment between transition amplitudes ΔT=1/2 and 3/2. The lagrangian is free from some defects of the lagrangian, obtained from the Cabbibo current. Some predictions for nonleptonic decays of charmed hadrons are made. The considered currents can describe up-to-date experiments on neutrino reactions. It should also be noted, that the proposed methods of dealing with weak currents may turn out to be rather useful when considering other quark schemes