Search results for "PHELIPANCHE RAMOSA"
showing 4 items of 14 documents
L'orobanche rameuse. Une plante parasite dont la variabilité s'avère complexe
2013
EASPEEcolDurGEAPSICT1; National audience; L'orobanche rameuse (Phelipanche ramosa (L.) Pomel) est une plante connue pour parasiter préférentiellement la tomate dans les pays du bassin méditerra-néen, le tabac et le chanvre en Europe centrale. Mais le colza semble être un nouvel hôte préférentiel avec une augmentation du nombre de parcelles infectées en Bulgarie, Espagne, France et Italie. Pourquoi cette orobanche inquiète Une expansion massive sur colza En France, on observe une expansion massive de cette espèce dans les parcelles de colza depuis la fin des années 1990.
Modélisation des effets des systèmes de culture sur la dynamique de l’orobanche rameuse en interaction avec les adventices
2016
Branched broomrape, Phelipanche ramosa (L.) Pomel, is a parasitic plant which causes important yield losses in crops, particularly in winter oilseed rape in France. In order to design efficient pest management strategies, we modelled the effects of cropping systems on branched broomrape dynamics in interaction with weeds and crops in a model called PHERASYS. PHERASYS functions and parameters were based on literature and on our own experiments. The model simulates the complete life-cycle of the parasite, from seed dynamics in the soil to seed production after development on the host. Interactions between the parasite and crops and weeds were characterized at the species level and at the plan…
Modelling cropping system effects on branched broomrape dynamics in interaction with weeds
2018
International audience; Branched broomrape, Phelipanche ramosa (L.) Pomel, is a parasitic plant which infects many crop and weed species. As a holoparasite, it entirely relies on host resources to survive and reproduce. It is a major pest in oilseed rape in France. Its management has to be thought as a part of the overall weed management because infected weeds either must be killed to limit crop infection or can be used to stimulate suicidal parasite germinations. In order to design efficient pest management strategies, we modelled the effects of cropping systems on P. ramosa dynamics in interaction with weeds in a model called PHERASYS. PHERASYS functions and parameters were based on the l…
Modélisation des effets des systèmes de culture sur la dynamique de la plante parasite orobanche rameuse en interaction avec les adventices
2019
Reducing pesticide use is a major challenge in agriculture and involves developing more sustainable methods that rely on non-chemical cropping techniques and biological regulations according to agroecological principles. Branched broomrape (Phelipanche ramosa (L.) Pomel) is a root parasitic plant which infects crops and causes dramatic yield losses worldwide. Managing broomrape is complex because it requires combining several cropping techniques whithin a global weed management strategy because broomrape is also able to infect non-parasitic weeds. The aim of this thesis was to stynthetize knowledge on branched broomrape dynamics in agroecosystems and to aggregate it within a mechanistic mod…