Our new cultivars Oryx and Rangifer increase the range of diploid Italian ryegrass cultivars suitable for cultivation in Switzerland. These cultivars were bred using new germplasm which is not represented in our older cultivars. As compared to the well-known Swiss cultivar Axis, annual dry matter yield of the new cultivars was increased by 4 to 6 %. They are thus superior to even the best tetraploid cultivars. Moreover, Oryx is quite resistant to snow mould (Microdochium nivale), thus reaches harvest maturity in spring more rapidly. In summer, forage digestibility is increased compared to other diploid cultivars due to Oryx’s tendency to form fewer reproductive tillers. The variety Rangifer is distinguished by it’s high resistance against bacterial wilt (Xanthomonas campestris pv. graminis). This resistance secures high yields in the warm summer months. Additionally, Rangifer is little affected by fungal leaf diseases.
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.