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Response of Ripgut Brome (Bromus rigidus) and Foxtail Brome (Bromus rubens) to MON 37500

Published online by Cambridge University Press:  20 January 2017

Abbes Tanji
Abbes Tanji*
Affiliation:
Institut National de la Recherche Agronomique, BP 589 Settat, Morocco
*
Corresponding author's E-mail: [email protected].
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Abstract

Greenhouse studies were conducted to determine the responses of ripgut brome and foxtail brome to MON 37500 applied at rates up to 80 g/ha. At 30 d after treatment MON 37500 at 20 g/ha reduced fresh weight of ripgut brome by 89% when applied at the three-leaf stage and 57% when applied at the tillering stage. MON 37500 at 10 g/ha reduced fresh weight of foxtail brome by 80% when applied at the three-leaf stage and 61% when applied at the tillering stage. Rates above 20 g/ha did not increase control of either species. In field experiments during 1998 to 1999 and 1999 to 2000 in Settat, Morocco, bread wheat tolerated MON 37500 at 67 g/ha. Ripgut brome control in the field was 78% in the first growing season and 90% in the second season when MON 37500 was applied at 27 g/ha to brome plants at the one- to four-leaf stage. A similar rate controlled tillering ripgut brome by 69% during 1998 to 1999 and 62% during 1999 to 2000. MON 37500 at 20 to 30 and 10 to 20 g/ha applied before tillering controlled ripgut brome and foxtail brome, respectively, ≥ 70%.

Keywords

MON 37500,1-(2-ethylsulfonylimidazo[1,2-a]pyridin-3-ylsulfonyl)-3-(4,6-dimethoxypyrimidin-2-yl)ureafoxtail brome, Bromus rubens L. # BRORUripgut brome, Bromus rigidus Roth #BRORIwheat, Triticum aestivum L. ‘Tilila’Herbicideweed control efficacyrainfed wheatDAT, days after treatmentNIS, nonionic surfactantPOST, postemergencePRE, preemergence
Type
Research
Information
Weed Technology , Volume 15 , Issue 4 , December 2001 , pp. 642 - 646
Copyright
Copyright © Weed Science Society of America 

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References

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