Abstract:
Exact field small-plot trials with winter wheat varieties Ludwig and
Sulamit (both the quality group E – elite) in organic farming system in the
sugar beet growing region of Central Bohemia were conducted in the years
2005 – 2007 to test the possibility of increasing in the crude protein content
in grain and thereby improving of baking quality (row spacing 125, 250 and
375 mm, sowing rates 200, 300 and 400 germinating kernels per m2
) under
the change of the wheat stand structure. Statistically significant increase of
crude protein content in wheat grain dry matter by approximately 0.7 % was
found at widening of row spacing from 125 to 250 mm and by about 1.5 % by
widening of row spacing from 125 to 375 mm. So, the treatments cultivated in
wider row spacing fulfilled the requirement for crude protein content in grain
dry matter of bread making wheat for minimum 11.5 %. Increase of values of
sedimentation test Zeleny was found at widening of row spacing from 125 to
375 mm, too. Wheat cultivation in wider rows had no negative impact on the
grain yield.
