A mower (1), particularly of the type towed by a tractor or the like, comprising a supporting chassis (2) that can be associated with a tractor or the like, and at least one mowing assembly (5) supported by the supporting chassis (2) through supporting means (6) and movable with respect to the supporting chassis (2) along a direction which is substantially perpendicular to the ground of the crop to be mowed so as to vary the position of the mowing assembly (5) with respect to the supporting chassis (2) as a function of the geometric irregularities of the ground so as to keep the mowing assembly (5) in position at a preset height from the ground.Electronically controlled damping means (24) being provided which are actuated with feedback and are functionally associated with the mowing assembly (5) and with the supporting chassis (2) to damp the relative motion between the mowing assembly (5) and the supporting chassis (2), sensor means (25) adapted to detect the variation of at least one value comprised among position, speed and acceleration of at least one of the mower (1), any one of its components and the ground of the crop to control the mowing assembly (5).There are also control and management means (27) which are functionally connected to the sensor means (25), to read the measurements performed by the sensor means (25), and to the damping means (24), to vary their damping coefficient as a function of the measurements performed by the sensor means (25).
