Kvasný průmysl (Sep 2009)
Comparison of the selected parameters of technological quality of older and current malting barley varieties.
Abstract
The set of in the history grown and also later registered genotypes of malting barley was analyzed for the selected technological quality parameters. Weight of 1000 grains and protein and starch contents were evaluated in the vegetation periods in 2004 and 2005. The drier year 2004 influenced reduction in TGW in most new as well as older genotypes. Starch content in the followed set was not affected by the year or genotype. The effect of the year on protein content in the studied set was not statistically. On the contrary, some older genotypes had higher TGW in both years compared to the current varieties and the starch content analysis showed that the older genotypes had starch content comparable to the newer varieties. Based on the studied parameters of grain technological quality, for example the variety "Slovenský Kvalitný", registered in 1946 achieved the best results.The set of in the history grown and also later registered genotypes of malting barley was analyzed for the selected technological quality parameters. Weight of 1000 grains and protein and starch contents were evaluated in the vegetation periods in 2004 and 2005. The drier year 2004 influenced reduction in TGW in most new as well as older genotypes. Starch content in the followed set was not affected by the year or genotype. The effect of the year on protein content in the studied set was not statistically. On the contrary, some older genotypes had higher TGW in both years compared to the current varieties and the starch content analysis showed that the older genotypes had starch content comparable to the newer varieties. Based on the studied parameters of grain technological quality, for example the variety "Slovenský Kvalitný", registered in 1946 achieved the best results.
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