clock model, in the numerical simulation we have identified the textures present in the system at each time and we have computed their average size $L_w(t)$. The results are shown in Fig. \[figlengthture\] for different values of $p>p_c$, showing that, actually, the size of textures grows as a power law $L_w\sim t^{1/z}$ with $z$ quite compatible with $z=4$ (best fits yield $1/z=0.29\pm 0.02, 0.29\pm 0.02, 
0.28\pm 0.02, 0.23\pm 0.02$ for $p=5,6,10,25$, respectively). This confirms that the exponent $z=4$ of the algebraic growth of $L_G(t)$ is determined by the texture mechanism, as in the XY model.

The previous results for $L_G(t)$ indicate the presence of a crossover at $p=p_c$ from the Ising to the XY non-equilibrium universality class. In order to substantiate this conjecture we have computed other dynamical quantities. The equal-time correlation function is plotted in Figs. \[figg1\],\[figg2\],\[figg3\] against $x=r/L_G(t)$. In Fig. \[figg1\] the cases with $p=2,3,4$ are considered. According to Eq. (\[scalgferro\]) for $p=2$ one should find collapse of the curves with different $s$ on a single mastercurve $g(x)$ given by Eq. (\[struttising\]). This is indeed observed in Fig. \[figg1\]. According to our hypothesis the same behavior should be observed also for $p=3,4$, as can be verified in the 