Research Article

Effect of Glyphosate and Mancozeb on the Rhizobia Isolated from Nodules of Vicia faba L. and on Their N2-Fixation, North Showa, Amhara Regional State, Ethiopia

Table 2

Effect of mancozeb on the growth of rhizobial isolates.

IsolatesControlInhibition effect of different concentrations of mancozeb (mg L−1) on rhizobial isolates against control (OD 620 nm)
100 mg L−1%S150 mg L−1%S200 mg L−1%S

AAUW-10.4170.03280.01330.0113
AAUW-20.3770.03690.02870.0226
AAUW-30.4570.04190.03170.0266
AAUW-40.4560.02760.01530.0123
AAUW-50.3430.03290.01950.0144
AAUW-60.4670.02350.02350.0204
AAUW-70.3850.03080.02150.0185
AAUW-80.4110.01840.01230.0102
AAUW-90.3730.036100.02360.0195
AAUW-100.4140.03690.02660.0225

Numbers in the same column followed by different letters are significantly different at confidence level (Tukey’s HSD). Letters in the columns (a, b, c, d, e, f, g, and h) are ranks of the mean; %S = percentage of survival; AAUW = Addis Ababa University Wolki variety.