Joint International Conference on Long-term Experiments ...

RESULTS AND DISSCUSSIONS
1. The protein content influence of the biological links.
The protein content of the wheat grains is a hereditary trait, strongly influenced both by the
environmental conditions and by the crop ones. The research carried-out clearly shows the
strong reaction of the protein content function of the ecological circumstances, the variation
amplitude from one location to another and, especially, from one year to another is reaching
5 up to 7%.
Within the framework of the carried-out experiences, there have were carried out
analysis on the protein content of the B,SC1,SC2 biological links and other “replications”
and the results achieved are presented in the table 1 bellow.
Table1: The impact of the biological links of wheat seed on the protein content of grains
Biological 2004-2006 2005-2006 2004-2006 Average
category/class Protein % Protein % Protein %
Base (B) mt 12.3 100.0 11.8 100.0 12.1 100.0
SC1 12.0 97.6 11.8 100.0 11.9 98.3
SC2
Other
11.2 91.1 11.3 95.7 11.3 93.3
replications I 8.4 70.7 000
7.3 61.8 000
Other
7.9 65.3
replications II 7.1 57.7 000
7.3 61.8 000
7.2 59.5
DL 5% 5.3 10.4
DL 1% 14.4 21.5
DL0.1% 25.4 30.4
According with the obtained data, two main aspects are mainly emphasised, namely:
� The biological link of the seed puts its mark on the protein content. The differences
between the biological links obtained and maintained through a conservative
amelioration process (B,SC1,SC2) are not significant ones, as they are maintained
within some high-levelled parameters during the two-year research period. An evident
depreciation can be observed in the case of the “other replications” in which case, the
protein percentage diminishes to the statistically ensured quotas, but which are negative
in comparison with the Base (Mt) biological link. The striking differences are due to
the lack of selection pressure exercised on this biological material, the biological nonpurified
amount thus negatively marks the wheat grains’ quality.
� The differences, although less relevant, show the influence of the climatic year on the
protein percentage, soil factors making their impact on the wheat harvest’ quality.
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