Commercial products of parsnip were formed in the conditions of the Right-Bank Forest-Steppe of Ukraine within the sum of effective temperatures of 1356‑1495 °C, precipitation amounts of 171‑318 mm, and relative humidity of 57‑64%. The yield value had an inverse relationship with the sum of temperatures and a direct relationship with the amount of precipitation, relative humidity, and hydrothermal coefficient. The highest yield in the conditions of the Right-Bank Forest-Steppe of Ukraine is provided by Stymul and Pul's varieties with a total yield of 46.2 and 44.8 t/ha, and a marketability of root crops of 89 and 88%, respectively. Pul's and Stymul varieties had the highest breeding value of genotype in terms of yield (BVGi = 46.2 and 44.8, respectively), high ecological stability (Sgi = 3.43 and 1.96, respectively), and plasticity (bi = 1.47 and 0.89%, respectively). The highest indicator of general adaptive ability for plant productivity was observed in the Stymul (GAA= 3.12) and Pul's (GAA= 1.76) varieties. According to the indicator of specific adaptive ability, the Stymul variety (SAA = 2.52) and Pul's (SAA = 0.78) were highlighted. According to the biochemical composition of root crops, the varieties under study did not exceed the control. However, in the Borys variety, the content of dry matter – 25.1%, dry solute – 15.8%, and sugar content – 6.4% was at the control level. All varieties were identified to have a high content of vitamin C – 8.9‑10.1 mg/100 g. The varieties did not tend to accumulate nitrates and their content ranged from 67 to 80 mg/kg and was below the maximum allowable level (MAL 250 mg/kg). The highest tasting score of 5.6 points was given by the Pul's variety. It is recommended to grow highly productive varieties of parsnip – Stymul and Pul's to obtain a consistently high yield of root crops (44.8‑46.2 t/ha) and their marketability at the level of 88‑89% with a high content of basic biochemical components in the conditions of the Right-Bank Forest-Steppe of Ukraine on ‑medium-podzolic coarse-pollinated light loamy turf soil
yield, quality indicators, stability, plasticity, breeding value of the genotype