POLYAMINE BIOSYNTHESIS REGULATORS: POTENT MODULATORS OF HERBICIDE STRESS IN SPRING BARLEY (HORDEUM VULGARE)

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February 2015, vol. 4, special issue 2 (Biotechnology)
pages: 114-115
Article type: Biotechnology of Biotechnology
DOI: 10.15414/jmbfs.2015.4.special2.114-115
Abstract: Regulators of polyamine biosynthesis, such as 1,3-propylene diamine and γ-aminobutyric acid, are involved in reducing stress in plants. Triazine herbicide application on spring barley plants under conditions of pot experiment reduced grain yield by 1.8 %. After application of mixtures with regulators of polyamine biosynthesis a decline of grain yield was obtained (statistically not significant, by 7-15 %), when compared to variant with only herbicide applied. Triazine herbicide and mixtures with regulators of polyamine biosynthesis reduced one thousand grain weight, slightly increased the number of grains in a spike. Therefore, it would be more efficient to use the regulators of polyamine synthesis independently, not together with the herbicide before tillering.
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