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A study is presented of the $s-$wave meson-meson interactions involvingmembers of the $\rho-$nonet and of the $\pi-$octet. The starting point is anSU(6) spin-flavor extension of the SU(3) flavor Weinberg-Tomozawa Lagrangian.SU(6) symmetry breaking terms are then included to account for the physicalmeson masses and decay constants, while preserving partial conservation of theaxial current in the light pseudoscalar sector. Next, the $T-$matrix amplitudesare obtained by solving the Bethe Salpeter equation in coupled-channel with thekernel built from the above interactions. The poles found on the first andsecond Riemann sheets of the amplitudes are identified with their possibleParticle Data Group (PDG) counterparts. It is shown that most of the low-lyingeven parity PDG meson resonances, specially in the $J^P=0^+$ and $1^+$ sectors,can be classified according to multiplets of the spin-flavor symmetry groupSU(6). The $f_0(1500)$, $f_1(1420)$ and some $0^+(2^{++})$ resonances cannot beaccommodated within this SU(6) scheme and thus they would be clear candidatesto be glueballs or hybrids. Finally, we predict the existence of five exoticresonances ($I \ge 3/2$ and/or $|Y|=2$) with masses in the range 1.4--1.6 GeV,which would complete the $27_1$, $10_3$, and $10_3^*$ multiplets ofSU(3)$\otimes$SU(2).

Low-lying even parity meson resonances and spin-flavor symmetry