The field inspections for seed certification of cereals, hybrid maize, grain legumes, red clover and forage crops were carried out on 9’431 ha in 1998. In cereals 92 % of the registered area was admitted during field inspection. Presence of other cereals, drought damage and varietal impurities were the most important factors for rejection. The most important varieties of winter wheat were Arina and Runal and in winter barley Plaisant and Baretta. 2 % of the admitted area was produced according to the rules of organic farming. The production of organic seed was carried out for the first time in hybrid maize and soia.
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.