Die Bodenkultur - Journal for Land Management, Food and Environment

H.-G. STOCK and H. JEROCH:

Cultivation chances for two-rowed winter-barley in the low-rainfall part of Middle Germany in consideration of yield and composition

Summary

In plotted field trials four multi-rowed and four two-rowed winter-barley varieties were grown at three different levels of N fertilization on a sandy loam soil in the Middle part of Germany in 1993 and 1994. As expected, increased N fertilization caused an increase in crude protein content, but showed only little effect on the other estimated parameters. The multi-rowed varieties were higher in grain yield than two-rowed varieties. But the 8 % higher whole barley part of the latter caused a return in the relations of yield in view of whole barley yield. The two-rowed varieties were some what richer in starch and poorer in fibre than the multi-rowed ones. The first group had smaller contents of soluble pentosanes and P-glucans too. For the crude protein content there was no difference between both types of varieties. An influence of variety on chemical composition of the grains is partially visible. Beside the better marketing qualities the improved physiological composition of the nutrients supports the eligibility for growing of two-rowed varieties. Key-words: Winter barley, multi-row and two-row varieties, yield, marketing quality, nutrient content.