The shape of the resonance curve is essentially dependent on the degree of deformation and on the orientation of the specimen in the external magnetic field. This relation is different for mono- and polycrystals. In the former it is mainly the high-field part of the broadening delta H// plus which increases after deformation, and the low-field delta H// minus in the latter. The asymmetry parameter remains unaltered when the specimen is rotated in the plane of the narrow wall.