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6th Global Summit on Plant Science

Valencia, Spain

Jurgita Spokaite

Jurgita Spokaite

Lithuanian Research Centre for Agriculture and Forestry, Lithuania

Title: Impact of amino acids amount changes in winter wheat (Triticum aestivum L.) and relation with grain quality due to manganese and molybdenum foliar application


Biography: Jurgita Spokaite


Statement of the Problem: Numerous researches describe the influence of micronutrient elements (Cu2+, Mo6+, Mn+2 etc.) for the winter wheat growth and grain yield. Deficiency or excessive rate of microelements can cause functional disorders for many crops due to that yields can be significantly lower instead of higher. There are relatively few scientific papers with anticipate biochemical effects after combinations of two or more microelements (e.g. Mn+2/Mo+6/Zn+2) sprayed on crops. The purpose of this study is to describe relation between quantitative changes of amino acids in winter wheat during growth periods (tillering and steam elongation stages) and qualitative parameters of wheat grains.

Methodology & Theoretical Orientation: Molybdenum (Mo+6) and manganese (Mn+2) as micronutrients were sprayed twice in three different combinations:  (NH4)6Mo7O24·4H2O/MnSO4·H2O; (NH4)6Mo7O24·4H2O and; MnSO4·H2O. During both applications in all combination was 300 g of each cation. Control field was sprayed just with water. This research is mainly focused on molybdenum and manganese influence for grain quality parameters via quantity of amino acids.

Findings: Foliar applications of different micronutrients combinations cannot always have a positive effect despite the fact that Mo+6 and Mn+2 cations involving nitrogen to further metabolism process and required for normal assimilation of N.

Conclusion & Significance: Due to very important synergistic and/or antagonistic action of micronutrients combinations for crops the amount of amino acids were influenced by spraying inorganic salt solutions. A significantly higher amount of γ-amino butyric acid is determined after Mo+6 and Mo+6/Mn+2 treatments than in other treatments. These changes also had impact for some of wheat grain quality parameters. A higher amount of proteins in treatments sprayed with Mn+2 have been determined rather than in Mo+6. Other grain quality parameters have been also differently affected due to different treatments.