Relative Vorzüglichkeit verschiedener Weizensorten in Abhängigkeit von Ertrag, Qualität und Erzeugerpreisen

Summary

The system of quality payment is weighty on the economy of the production of wheat
under organic farming conditions. Yield, quality characters and profitability were investigated
on 5 winter wheat varieties (Bitop, Capo, Erla Kolben, Exklusiv, Pireneo)
and 5 locations from 2004 to 2008 (total of 25 trials). Under the payment scheme for
the years 2007 and 2008 the influence of the protein content on yield has declined.
The importance of the grain yield has increased compared to 2005 and 2006. Varieties
with a lower yield potential and rich in protein are losing their economic exquisiteness
partially under the new conditions. Breeding for high nitrogen efficiency, measured
as the grain protein respectively grain nitrogen yield, provides the best guarantee
for economic benefits.