Effect of foliar applied microelements on the contents of nitrogen and amino acids in oat grain and on the indices of biological value of protein
Krystian Nowak
biuro.dziekana.wrib@pbs.edu.plKatedra Chemii Rolnej, Wydział Rolniczy, Akademia Techniczno-Rolnicza, Bydgoszcz (Poland)
Edward Majcherzak
Katedra Chemii Rolnej, Wydział Rolniczy, Akademia Techniczno-Rolnicza, Bydgoszcz (Poland)
Bożena Barczak
Katedra Chemii Rolnej, Wydział Rolniczy, Akademia Techniczno-Rolnicza, Bydgoszcz (Poland)
Wojciech Kozera
Katedra Chemii Rolnej, Wydział Rolniczy, Akademia Techniczno-Rolnicza, Bydgoszcz (Poland)
Abstract
The content of amino acids was determined in grain obtained in the field experiment performed in 1999–2001, in which foliar fertilization of oat with individual solutions of microelements (Cu, Zn, Mn, Mo, B) in a form of inorganic salts and as a fertilizer containing these elements in a chelated form (Mikrochelat Gama) were tested. The research revealed that, under the test conditions, the content of amino acids was dependent on: molybdenum, boron and copper foliar applied. These elements caused an increase in: arginine, tyrosine, lysine and glutamic acid, in the oat grain with reference to the control not fertilized with microelements. Copper also increased the content of methionine. Total nitrogen content in oat grain was not modified by the microelements applied in this research. The changes in contents of the tested amino acids in grain were generally a consequence of the effect of the tested factors on the quality of the protein estimated from the content of total nitrogen in the tested grain. Molybdenum especially stood out above the tested factors, by inducing a clear increase in the total contents of the tested amino acids and an increase in the index of exogenous amino acids, a characteristic of the protein quality. Our research attracts with the fact that microelements applied together in chelated forms have a smaller effect on the contents of amino acids in oat grain than microelements used separately in ionic forms.
Keywords:
oat, microelements, amino acids, nitrogen in grainReferences
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Authors
Krystian Nowakbiuro.dziekana.wrib@pbs.edu.pl
Katedra Chemii Rolnej, Wydział Rolniczy, Akademia Techniczno-Rolnicza, Bydgoszcz Poland
Authors
Edward MajcherzakKatedra Chemii Rolnej, Wydział Rolniczy, Akademia Techniczno-Rolnicza, Bydgoszcz Poland
Authors
Bożena BarczakKatedra Chemii Rolnej, Wydział Rolniczy, Akademia Techniczno-Rolnicza, Bydgoszcz Poland
Authors
Wojciech KozeraKatedra Chemii Rolnej, Wydział Rolniczy, Akademia Techniczno-Rolnicza, Bydgoszcz Poland
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Copyright (c) 2006 Krystian Nowak, Edward Majcherzak, Bożena Barczak, Wojciech Kozera
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