Abstract
The objects of research were the fruits of apple trees of the Golden Reinders variety (rootstock M 9) grown on the basis of experimental plantings Agricultural institute, Science Academy of Abkhazia. Complex organic fertilizers have been selected as agrochemicals Antistress Chelate and Chelate Filling. The research is aimed at finding new, highly efficient and environmentally friendly agrochemicals, and also determines the development of technology for their application. It was found that the Golden Reinders variety in the humid subtropical zone accumulates from 10.6% (under control) to 11.6% (with non-root treatments) of sugars. Treatments with agrochemicals affected the main quantitative patterns in the content of mono- and disaccharides in apple fruits. The amount of fructose ranges from 6.63 g/100 g at the control to 7.52 g/100 g during treatments; glucose accumulates on average only 1.1-1.2 g/100 g, depending on the variant. Sucrose in fruits is 2.4-2.6 times more than glucose, which characterizes the ripening processes in fruits. Agrochemicals treatments have an ambiguous effect on the accumulation of organic acids. So, if there is a significant increase in malic, citric and tartaric acid during processing, then the content of lactic, succinic, oxalic and acetic acid drops. The sugar-acid index averages 13.6 units, there is a slightly acidic taste.
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