15
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: not found

      Relationship between weed dormancy and herbicide rotations: implications in resistance evolution.

      Read this article at

      ScienceOpenPublisherPubMed
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          It was suggested that selection for late germinating seed cohorts is significantly associated to herbicide-resistance in some cropping systems. In turn, it is conceivable that rotating herbicide modes of action selects for populations with mutations for increased secondary dormancy, thus partially overcoming the delaying effect of rotation on resistance evolution. Modified seed dormancy could affect management strategies-like herbicide rotation-that are used to prevent or control herbicide-resistance. Here, we review literature for data on seed dormancy and germination dynamics of herbicide-resistant versus susceptible plants. Few studies use plant material with similar genetic backgrounds, so there are few really comparative data. Increased dormancy and delayed germination may co-occur with resistance to ACCase inhibitors, but there was no clear-cut link with resistance to other herbicide classes. Population shifts are due in part to pleiotropic effects of the resistance genes, but interaction with the cropping system is also possible. We provide an example of a model simulation that accounts for genetic diversity in the dormancy trait, and subsequent consequences in various cropping systems. We strongly recommend adding more accurate and detailed mechanistic modelling to the current tools used today to predict the efficiency of prevention and management of herbicide resistance. These models should be validated through long-term experimental designs including mono-herbicide versus chemical rotation in the field.

          Related collections

          Author and article information

          Journal
          Pest Manag. Sci.
          Pest management science
          Wiley-Blackwell
          1526-4998
          1526-498X
          May 09 2017
          Affiliations
          [1 ] Agroécologie, AgroSup Dijon, INRA, Univ. Bourgogne Franche-Comté, F-21000, Dijon, France.
          Article
          10.1002/ps.4611
          28485118
          8bc9842f-5304-4b9e-8ff2-fffcc49f7c39
          History

          co-selection,crop rotation,germination,herbicide resistance,seed dormancy,weed management model

          Comments

          Comment on this article