A preliminary approach for modelling the effects of cropping systems on the dynamics of broomrape (Phelipanche ramosa) in interaction with the non-parasitic weed flora

Nathalie Colbach 1 Nadia Abdennebi-Abdemessed 1 Stéphanie Gibot-Leclerc 1
1 BGA - Biologie et Gestion des Adventices
Abstract : The current decrease in herbicide use may increase and diversify weed flora incrops as well as companion bioagressors spreading via weeds. Among these bioagressorsisPhelipanche ramosa(L.) Pomel, a parastic plant which is very harmful on oilseed rape.The objective of the present work was to develop a new model (called PheraSys) of theeffects of cropping systems on parasite dynamics, in interaction with non-parasitic weedhosts. The structure of this first model version was based on models developed for otherparasitic plants and on FlorSys which quantifies the effects of cropping systems on non-parasitic weed flora. PheraSys was parametrized with preliminary values from literatureand expert opinion, connected to FlorSys for weed host predictions and used to simulateparasite dynamics in a few contrasting cropping systems.
Keywords : Model Oilseed rape Brassica napus L Broomrape Phelipanche ramosa L Pomel Cropping system Weed Parasitic plant
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Journal articles
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Submitted on : Tuesday, December 11, 2018 - 3:07:43 PM
Last modification on : Thursday, February 7, 2019 - 4:29:03 PM

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Nathalie Colbach, Nadia Abdennebi-Abdemessed, Stéphanie Gibot-Leclerc. A preliminary approach for modelling the effects of cropping systems on the dynamics of broomrape (Phelipanche ramosa) in interaction with the non-parasitic weed flora. Oléagineux, Corps Gras, Lipides, John Libbey Eurotext, 2011, 18 (1), pp.39-45. ⟨hal-01951586⟩

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