Agriculture Reference
In-Depth Information
The Suitability of Different Winter and Spring Wheat Varieties for Cultivation in Organic Farming
http://dx.doi.org/10.5772/58351
tional farming was on average 2.1% higher. Differences in the total protein content between
varieties were insignificant, both in organic and conventional farming system. Spelt Schwa‐
benkorn was the only exception as it had a clearly higher content of proteins (compared to
modern varieties) (Table 10).
Years of research and farming systems
Cultivar
2008
2009
mean
organic system
Kobra
11.2
13.6
12.4
Bogatka
11.4
13.6
12.5
Smuga
11.4
14.1
12.8
Tonacja
11.7
13.3
12.5
Ostka Strzelecka
11.7
13.9
12.4
Spelt
16.8
16.3
16.6
mean
(without spelt)
11.5
13.7
12.6
conventional system
Kobra
13.4
15.7
14.6
Bogatka
12.9
15.9
14.4
Rywalka
13.6
16.2
14.9
Legenda
14.0
15.8
14.9
mean
13.5
15.9
14.7
Table 10.
The content of total protein of the grain (%) of selected winter wheat cultivars in organic and conventional
farming system
Analysis of correlation was done to assess the relationships between grain yield of winter
wheat in organic system and factors limiting the yield as well as morphological features and
canopy parameters. This analysis showed strong, negative correlation between grain yield of
winter wheat and weed dry matter at dough stage (r=-0.792) (Table 11). The grain yield was
also significantly influenced by number of weeds and leaf infestation by fungal pathogens.
There was no correlation between stem base diseases and grain yield of winter wheat in organic
system. The tillering and height of common wheat did not have a significant impact on yields,
but there was a strong correlation between grain yield and plant density. Weed infestation was
significantly influenced by density of wheat, dry matter of wheat and its height. There was no
significant correlation between tillering and parameters of weed infestation (Table 11).
