Star Anise Extract as a Plant Growth Regulator

Abstract

Currently, much attention is being paid to reducing the use of chemical plant protection products and increasing the use of natural growth stimulators. Plant extracts are an inexhaustible source for the search for new biologically active substances (BAS). Extracts have ecological purity, in the production of which liquid carbon dioxide – CO2-extracts are used as a solvent. The purpose of the study was to study the growth-regulating properties of the CO2-extract of star anise. In the three-year period 2020–2022 field small-scale experiments were carried out on plants of winter wheat of the Bezostaya 100 variety, corn of the Krasnodar 191 AMV variety, soybeans of the Arlet variety and rice of the Favorit variety. The use of CO2-extract of star anise contributed to obtaining a reliable and significant increase in the yield of all these crops. The yield of winter wheat increased by 10.4, corn – by 9.8, soybeans – by 16.8, rice – by 7.4% (average data for 3 years). The positive effect of the extract of the bucket on the formation and development of plant organs that determined the structure of the crop yield was noted, the quality of grain increased. On the example of winter wheat plants, an increase in photosynthetic activity under the influence of a growth regulator has been established.