RVVS 2013

Raspberry biotisation for quality plant production

International audience; Biotisation with beneficial mycorrhizal fungi and bacteria has been shown to be efficient in improving raspberry plant growth, particularly during the acclimatisation phase of in vitro produced plants. It also increases raspberry tolerance to Phytophthora fragariae var rubi which causes disastrous effects in the field and is not efficiently controlled by fungicides. The contamination of young plants during their multiplication has been a major source of spreading for this disease. For quality insurance, it is therefore important to produce plants which are healthy and devoid of P. fragariae var rubi contamination. In addition, the raspberry market is growing followin…

Présentation des résultats du GT2 : Zoom sur un fait marquant du GT2 : Marjorie UBERTOSI, Gilles BRUNSCHWIG. L’adaptation dessystèmes de production agricole, animale et végétale, aux changements de contexteenvironnemental, agricole et social (ProSys & POEETE)

Dijon Métropole et la transition alimentaire

National audience; La santé commence dans l’assiette et les collectivités reprennent la main. Exemple à Dijon Métropole qui se veut territoire démonstrateurde la transition vers un système alimentaire durable. En 2019, Dijon ouvrira les portes de la Cité internationale de la gastronomie et du vin, dont l’une des missions sera de valoriser le repas gastronomique des Français et mettre en avant les climats de Bourgogne, tous deux inscrits au patrimoine mondial de l’Unesco. Dans le même temps, Dijon veut devenir un territoire modèle du « système alimentaire durable de 2030 ». Derrière ce titre se cache un projet innovant qui fait partie des vingt-quatre lauréats de l’appel à projets gouverneme…

Variability of Christmas rose (Helleborus niger L.) populations and its potential use in genetic breeding

International audience; The Christmas rose (Helleborus niger L.) is widely distributed in Southern and Central Europe, and Slovenia is probably one of the centers of its diversity. The investigation was aimed at evaluating phenotypic diversity among selected wild populations in Slovenia and neighboring Croatia. Some of the analyzed traits expressed relatively very high variation (e.g., number of leaves per plant, number of inflorescences per plant). The variation ranges of some of the analyzed traits were found to be wider than those mentioned in the literature. Statistical analysis indicated that variability was more expressed within than between populations. In terms of present market req…

Effect of rhizosphère bacteria and endomycorrhizal fungi on the growth of Christmas rose (Helleborus niger L.)

International audience; Micropropagated and vegetative (by rhizome cuttings) propagated plants of Christmas rose ( Helleborus niger L.) were tested for their responses to the inoculation with microorganisms in order to optimize root growth and development. In our experiment, plants were inoculated with arbuscular endomycorrhizal fungi or/and Agrobacterium radiobacter . The investigation indicated that inoculation with A. radiobacter had significantly positive effect on growth and development of plants multiplicated by in vitro techniques as compared to the dual inoculation. This study indicates that, biotization can be beneficial to plant growth in in vitro plant production systems but inoc…