Although the year 2008 in Switzerland belongs to the 10th to 12th warmest years since the beginning of measurements, the effects on the development of the vegetation were not very striking. An extreme excess of heat was never registered except of the winter months and May. The mild winter simply had an effect on the flowering of the hazel, occurring early to very early. The flowering of coltsfoot showed large differences of the occurrence date. Besides this, most of the phenological spring phases were observed at the normal point in time. However, at some observation stations, a small number of phenological phases showed a completely unusual date of occurrence. These observations were very late or even extremely late (new records) and no explanation was found for this extraordinary behavior of these plants. This reflects clearly, despite intensive research on phenology during the last years, that many natural processes are until now not or not yet understood by the human being. According to the alternating weather, the development of the vegetation showed neither a consistent nor an outstanding pattern in the summer. However, the early leaf-fall of the beech was quite striking, caused by the cold snap at the beginning of October. The year 2008 can be considered as a normal phenological year, except the early flowering of the hazel, the irregular pattern of the flowering of coltsfoot, the inexplicable records (late observations) and the early leaf-fall of the beech.
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.