Scientific Reports of the National University of Life and Environmental Sciences of Ukraine

Growth regulators for increasing the seed productivity of head cabbage plants at the reproductive stage of development

S. Kondratenko, N. Kyriukhina, I. Mytenko, P. Dulniev
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Abstract

Introduction. Belonging of cabbage varieties to different species, varietal types and maturity groups requires constant improvement of varietal technologies of seed cultivation. One of the effective methods of solving this problem is the use of growth regulators. The goal is to investigate the regulatory effect of composite preparations of biologically active substances for prospective use in the technological processes of growing cabbage seeds. Methods: general scientific, measuring, weighing and weighting, variational statistics. Results. The work studied two composite preparations DSK-1A and DGURSK, which, in addition to other components, contained regulators of phytohormonal action. Biotests of the preparations were carried out on 3 varieties of cabbage (Kharkivska zimova, Yaroslavna, Paleta) of domestic breeding. It has been established that the DSK-1A drug is highly effective on three varieties of head cabbage. Compared to the absolute control, the increase in seed productivity was 36.30...57.47%, and the weight of 1000 seeds was 15.64...39.55%. The drug DGURSK was effective on two varieties, Paleta and Kharkivska zimova. Relative to the absolute control, the increase in the formed mass of seeds in these varieties was 56.73...63.70%. On the formation of the mass of 1000 seeds, the drug DGURSK had a consistently high effect in three varieties, which was reflected in the increase of the indicator "mass of 1000 seeds" by 16.95...25.38 % compared to the absolute control. Results and Discussion. As a result of the use of composite preparations of biologically active substances, it was possible to increase the seed productivity of cabbage plants, while minimizing the negative impact of varietal reaction to growing conditions

Keywords

head cabbage, seed productivity, composite preparations, growth regulators, varietal reaction

Suggested citation
Kondratenko, S., Kyriukhina, N., Mytenko, I., & Dulniev, P. (2023). Growth regulators for increasing the seed productivity of head cabbage plants at the reproductive stage of development. Scientific Reports of the National University of Life and Environmental Sciences of Ukraine, 19(3). https://doi.org/10.31548/dopovidi3(103).2023.006
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