215 apple selections and cultivars were screened in a glasshouse shoot infection test for their susceptibility to fire blight in the frame of projects that were financed by the Swiss Federal Office for Agriculture. Selected varieties were also examined for their flower susceptibility towards fire blight in an open air protected orchard. Moreover, a fire blight resistance gene originating from the wild apple «Malus x robusta 5» was precisely localized in the genome and the efficiency was tested by introduction of the gene into the susceptible cultivar «Gala». A Fast Track approach was used to speed up breeding of fire blight resistant apple cultivars with market potential.
Spring J.-L-, Zufferey V., Verdenal T., Reynard J.-S., Lorenzini F., Bourdin G., Blouin A., Carlen C., Jermini M., Morisoli R., Ferretti M.
Five Merlot clones bred in Switzerland are currently being distributed by the certification sector. A multiyear trial conducted by Agroscope in Gudo (Canton of Ticino) has made it possible to compare them with French and Italian reference clones and to highlight their very good performances.
Arbuscular mycorrhizal fungi are important for healthy soils and crops. A pan-European study shows that plant-protection products adversely affect these fungi, reducing their ability to supply plants with phosphorus via their roots.
Birdsfoot trefoil and sainfoin are used in mixtures for perennial hay meadows and for tannin-containing fodder. Agroscope is adding two new cultivars of birdsfoot trefoil to the ‘List of Recommended Varieties of Forage Plants’, whilst there is no change in the case of sainfoin.