highly significantp = 0.00423
Three extracts displayed moderately strong negative association with clinical resistance, with halo size decreasing with increasing clinical resistance, of which two were highly significant ( C. rupestris : r = −0.487, p = 0.00423; C. rubrum : r = −0.463, p = 0.00681) and one borderline nonsignificant ( U. lactuca : r = −0.306, p = 0.0567).