Resistance ofBradyrhizobium japonicum strains to different fungicides and herbicides
Author(s) -
Alisson Carraro Borges,
Walter Vieira Guimarães,
R. M. C. Muchovej,
G. de Los Reyes González
Publication year - 1990
Publication title -
world journal of microbiology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.758
H-Index - 90
eISSN - 1573-0972
pISSN - 0959-3993
DOI - 10.1007/bf01202128
Subject(s) - captan , fungicide , metribuzin , trifluralin , biology , chemistry , horticulture , agronomy , pesticide , weed control
Of 50 strains ofB. japonicum, 64%, 44% and 54% were resistant to the fungicides captan, pentachloronitrobenzene and tetramethylthiuram disulphate, respectively, at concentrations above those recommended for treatment of soybeans. 100% and 84% of the strains were resistant to the herbicides trifluralin and metribuzin, respectively, also at concentrations above those recommended for soybeans. No strain was resistant to alachlor above 3.5 μg/ml but 40% were sensitive to 2.5 μg/ml, these being, respectively, the maximum and minimum concentrations recommended for soybeans.
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