A ‘protein potential’ concept has been developed by analogy with the ‘grain yield’ concept, with the aim of better understanding the factors influencing wheat protein content and identifying the most stable varieties as well as the amount of protein that remains to be reached. The protein potential of 18 varieties of winter wheat covering all quality categories was established experimentally, and varied from 13.0% to 16.6%, according to the variety. Additional experimental data were used to evaluate the frequency at which the protein potential was achieved in the various conditions. Close to 5000 protein-content values stemming from practice (Fenaco GOF) also enabled a comparison of the performances of the varieties in both tests and practice. The analysis of these data demonstrated that the amount of nitrogen fertiliser applied as well as the splitting of applications influenced the rate of achievement of protein potential. Certain varieties are stable and others unstable, whether they are cultivated under test or practical conditions. The results from both sources are consistent, suggesting that the research data allow an accurate prediction of the performance of the varieties grown under practical conditions.
Tuta absoluta is one of the most destructive pests of solanaceous crops. Agroscope has developed a statistical model to study the population dynamics of the pest and its parasitoids and allows interventions to be optimally planned.
Swiss vineyards are often small and arranged in a mosaic of separate plots and management practices. Therefore, it can be assumed that spray drift from conventional to organic vineyards occurs regularly. Nevertheless, no pesticide residues are detected in most organic wines.
Nay M.M., Grieder C., Frey L.A., Amdahl H., Radovic J., Jaluvka L., Palmé A., Skøt L., Ruttink T., Kölliker R.
Red clover is one of the most important legumes in European forage production. In a multi-year field trial, researchers tested Europe’s largest collection of different red clover accessions at five European locations.