Level and stability of pyrimorph resistance for the parental wild-type isolates and the resistant mutants of <i>Phytophthora capsici.</i>

Abstract

a<p>Parent isolates were collected from the field locations. Mutants were obtained by mass selection on pyrimorph-amended medium.</p>b<p>EC₅₀ = effective concentration for 50% inhibition of mycelial growth at the 1^st transfer and the 10^th transfer.</p>c<p>RF = resistance factor, a ratio of EC₅₀ for a fungicide-resistant mutant relative to the EC₅₀ for the parental isolate.</p>d<p>FSC = the ratio of RF values at the 1^st and 10^th transfers.</p