The field inspections for seed certification of cereals, hybrid maize, grain legumes, red clover and forage grasses were carried out on 8‘945 ha in 2000. In cereals 92,5 % of the registered area was admitted during field inspection, 2,1 % was refused and 5,4 % was withdrawn from field inspection. Hail damage, presence of other cereals, and varietal impurities were the most important factors for rejection and withdrawal. The most important variety of winter wheat was still Arina (44 %), followed by Galaxie (15 %), Runal and Titlis (11 %). In winter barley the six-row varieties Plaisant (28 %) and Lyric (24 %) and the two-row cultivars Baretta (55 %) and Jasmin (35 %) were dominant. 94 % of the admitted area was produced according to the rules of integrated farming systems and 2,6 % according to the rules of organic farming.
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.