From 2013 to 2015, Agroscope tested 33 varieties of Westerwolds ryegrass (Lolium multiflorum Lam. var. westerwoldicum Mansh.) and five varieties of Persian clover (Trifolium resupinatum L.) as to their suitability for cultivation. Yield, vigour, persistence, resistance to leaf diseases, dry-matter content and competitive ability were evaluated. In the case of Westerwolds ryegrass, digestible organicmatter content was also evaluated. The following Westerwolds ryegrasses are newly recommended: ILVO 135825 stood out with very good performances in total yield and disease resistance, Bendix exhibited solid yields and the best digestibility of the test series, and Prodag impressed with very good vigour and high yields. The diploid variety Pulse proved to be high-yielding whilst having slightly lower digestibility. The new variety Logics, which replaces Bravis 1, had the best competitive ability of the trial as well as very good vigour. Eight new varieties with very good performances had to be classified as replacement varieties, due to limitation of the number of recommended varieties. The previously recommended varieties Imperio, Peleton, Primora and Melmondo were deleted from the List owing to unsatisfactory performances. Two varieties of Persian clover are newly recommended: Gorby, with top rankings in vigour, juvenile development, competitive ability, persistence and resistance to sooty blotch, as well as Rusty, which exhibited the best yield performance.
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.
Tall oat grass and golden oat grass are typical hay-meadow grasses that are also suitable for forage mixtures. Of the four tall and three golden oat grass varieties tested, only one new variety of tall oat grass is likely to make it onto the List of Recommended Varieties.
Stevenel P., Wendling M., Brabant C., Suss H., Savoyat C., Dierauer H., Mascher F., Charles R.
FiBL and Agroscope investigated bread wheat varieties to determine their yield and quality stability. The results show that the choice of variety must be adapted to the site and that high yield potential does not go hand-in-hand with a high protein content.