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Assessment of herbicide resistant crops in reference to Germany’s Reduction Program in Chemical Plant Protection – Analysis of an 8-year experiment with glufosinate resistant oilseed rape and maize

Summary
The complete article is written in German
Results of a long-term experiment with glufosinate resistant oilseed-rape and maize were analysed regarding their importance for reduction of intensity and ecotoxicological risks of herbicide use. For this purpose, the treatment indices (BI) and SYNOPS risk potentials for biological risk were calculated. The BI in herbicide resistant maize increased in comparison with the conventional variant (1.2 vs. 0.9). In herbicide resistant oilseed rape, the BI was below the conventional variant right from the start (0.9 vs. 1.3). In both herbicide crops, SYNOPS risk potentials for aquatic organisms were reduced. In conclusion, herbicide resistant oilseed rape and maize in linkage with early or late post-emergence uses of glufosinate could be a future option that can meet main goals of Germany’s Reduction Program in Chemical Plant Protection.

german version

Keywords/Stichworte:Herbicide resistance; glufosinate; maize; oilseed rape; treatment index; water conservation

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Autor:B. HOMMEL, B. PALLUTT, Institut für integrierten Pflanzenschutz, Biologische Bundesanstalt für Land- und Forstwirtschaft (BBA), Stahnsdorfer Damm 81, D-14532 Kleinmachnow, E-Mail: b.hommel@bba.de;
J. STRASSEMEYER, Institut für Folgenabschätzung im Pflanzenschutz, Biologische Bundesanstalt für Land- und Forstwirt-schaft (BBA), Stahnsdorfer Damm 81, D-14532 Kleinmachnow

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