Synthesis, Characterization, and Agricultural Biological Activities of 5-Fluoro-2-hydroxy Butyrophenone

Table 2

Antifungal activities of 5-fluoro-2-hydroxy butyrophenone against two pathogenetic fungi.

Pathogenetic fungi	Toxicity regression equation^a	EC^b50/mg·L^−1 (95% confidence interval)	Chi-square^c
Valsa mali	𝑌=−2.426+1.617𝑋	31.46 (26.53–37.74)	0.652
Coniothyrium diplodiella	𝑌=−3.957+2.238𝑋	58.62 (51.38–67.16)	0.675

aPROBIT model: 𝑌 (probit) =intercept+𝐵𝑋 (covariates 𝑋 are transformed using the base 10 logarithm).
bCyprodinil displayed better fungicidal activity against Valsa mali and Coniothyrium diplodiella, with the EC₅₀ values being 10.4 and 10.2 mg·L⁻¹, respectively.
^c𝜒²<𝜒²_(3,0.05)=7.815 shows that toxicity regression equations obtained can be used for predictions of the inhibition effects.