Mutations in the acetolactate synthase (ALS) enzyme affect shattercane (Sorghum bicolor) response to ALS-inhibiting herbicides

Table 4 Regression parameter estimates and effective primisulfuron doses in greenhouse dose–response studies resulting in 50% (ED₅₀) and 90% (ED₉₀) control of primisulfuron-susceptible and resistant shattercane biotypes

^aAbbreviations: DAT Days after treatment, ED Effective dose, SE Standard error
^bRegression parameters B, C and D represent slope, lower and upper-limit of the four-parameter log-logistic model, respectively, and were determined by using the nonlinear least-square function of the statistical software R. ED₅₀, effective primisulfuron dose required for 50% control of shattercane at 28 DAT; ED₉₀, effective primisulfuron dose required for 90% control of shattercane at 28 DAT
^cResistance level was calculated by dividing the ED₉₀ value of the primisulfuron-resistant shattercane biotype by that of the primisulfuron-susceptible biotype

ISSN: 1601-5223