The spectrum of adaptive variability was considered, the methods of selection and assessment of different varieties were summarized, the optimal terms of planting seedlings and the best forms of absorbent under adaptive culture technology in the conditions of the Right Bank Forest Steppe of Ukraine were studied. The study of the adaptive and productive potential of the varieties showed that the maximum leaf area was formed by the varieties Temnyi Opal, Rutan (25.1- 26.7 mm2 ), which in turn affected the yield. The results of determining the activity of antioxidant enzymes and the pigment complex of leaves showed that the increase of these indices in some varieties of basil indicates their drought resistance. As a result of the obtained experimental data, the Temnii Opal and Badioryi cornflower varieties are the most productive and quite stable and highly adaptive according to the set of parameters (KAA = 1.13 – 1.16; Hom = 89.55 – 96.23) and are characterized by the improved biochemical composition indices. The developed model of the cornflower variety will contribute to the stabilization and increase of the agrocenosis efficiency. The best dates for planting seedlings in open ground for Rutan and Badioryi varieties have been selected. The Rutan variety had the largest number of leaves, its indices were at the level of 187.5–237.4 pcs/plant. The Badioryi variety was characterized by a smaller number of leaves and showed itself better when planted in the first decade of May, having 214.1 pcs/plant. The Badioryi variety had a higher leaf index than the Rutan variety. According to the obtained data, it can be concluded that when seedlings are planted in the first decade of May, the leaf area of the Badioryi variety increases more intensively. The yield structure analyses showed that the varieties reacted differently to the time of planting seedlings. For the Badioryi variety, the control period for planting in the first decade of May turned out to be the best, receiving 44.6% of leaves, and for the Rutan variety, the best time was the third decade of April with the index of 53.2% of leaves. The study of different periods of planting cornflower seedlings showed a significant change in correlations between variables. Analyzing the relationship between chlorophyll content, plant weight and yield, a very strong relationship between plant weight and chlorophyll content was found. The use of “Maxi Marin” absorbent in the form of a gel helped to increase the reserves of productive moisture. On average, over three years, the application of the gel increased this index relative to the control by 24–43% in May; 15–43% in June; 22–32% in July. The results of the study of the activity of antioxidant enzymes and the pigment complex of the leaves showed that the increase in the 8 activity of these enzymes in the control variants of the cornflower varieties indicates their resistance to drought. From the obtained data, it can be seen that the use of the absorbent in the form of a gel contributed to a significant increase in the number of leaves on the plant (+7.26% in the Badioryi variety and 5.71% in the Rutan variety). In addition, the use of an absorbent contributed to an increase in the yield of dry matter, regardless of the form of the absorbent (+0.25 - 0.45 kg/ha in the Badioryi variety and 0.20 - 0.30 in the Rutan variety). The use of absorbents contributed to the increase in the content of chlorophyll a + b, but with the use of absorbent in the form of a gel, the increase was the most significant for the control. A higher yield was observed when using an absorbent in the form of a gel. Thus, the productivity of the Badioryi and Rutan varieties was at the level of 16.43 and 11.29 t/ha. The level of profitability of growing cornflower varieties was 58 - 85%. The highest rate was observed in the Temnyi Opal and Badioryi varieties. The highest accrued net earning was obtained in the Badioryi variety for planting seedlings in the first decade of May. The level of profitability for the use of different terms of planting seedlings for the Badioryi variety was 86–104%. According to the results of research, the cornflower growing is quite effective, depending on the variety and the applied absorbent. The analysis of the obtained indices showed that the highest amount of conditional net profit was obtained under the gel application. The level of profitability of growing the Badioryi variety with the introduction of gel is 117%, of the Rutan variety - 50%. Since the energy efficiency ratio in all experiments and variants was higher than one, the investigated elements of the technology turned out to be effective. Based on the results of the research, using adaptive varieties with optimal planting dates and the use of absorbents, an adaptive technology for growing basil in conditions of unstable moisture in the Right Bank Forest-Steppe zone of Ukraine was created.
