“…The plant hormones determination, despite being considered an excellent alternative for understanding the plant physiological events (Centeno et al, 1997, Davies, 1995, Brault, Maldiney, 1999, has limited use in routine laboratory studies due to their complexity, expensiveness and time-consuming instrumental methods. There has been continuous effort to develop new Immunoassay techniques that estimate the concentration based on a comparison with known concentrations of a reference solution (Maldiney et al, 1986, Peres et al, 1997.…”