Growth regulators and their effects on biological signs of pear

Abstract

The research was carried out at the experimental site of the Caspian Agrarian Federal Scientific Center of the Russian Academy of Sciences in 2019-2021. The object of study was the fruit-bearing variety Talgar beauty. Pear trees lived under control without processing. The subject of the tests was preparations of natural origin Amulet and Ovary fruit. The analysis showed that against the background of management, both drugs accelerated fruit ripening, most of all the Ovary drug. Experimental data were processed using the method of dispersion analysis according to B.A. Dospekhov. Records and observations were carried out per the Program and methodology of various fruit, berry and nut crop studies (1999). The soil cover of the site is represented by light chestnut, carbonate, thick and medium-sized soils with a humus content of 0.40 cm 1.02% in the arable layer. The ripening of the fruits in the Ovary variants occurred 7-10 days earlier than the control and seven days earlier than the Amulet variants. Only single leaves were affected by brown spotting in variants using growth regulators. The damage caused by honeydew and aphids did not exceed 12-16%. As a result, the Ovary drug stimulated earlier fruit ripening, and the Amulet increased resistance to critical temperatures. Joint treatment with Amulet and Ovary preparations provided the most significant marketability: the yield of fruits of the highest and first grade, the one-dimensionality of fruits. The marketability of fruits was 74-91%, and in control, only 66.0%.