In this paper statistical methodology is used to determine similar gro
ups of Argentine maize varieties and to model the behaviour of the moi
sture content as a function of the water activity. Different equations
proposed in the literature are studied and a common mathematical mode
l is obtained for all varieties whatever the adequacy criteria conside
red. The use of the goodness of fit criteria is also discussed. Copyri
ght (C) 1996 Elsevier Science Limited.