The results of testing samples of carrots in the conditions of Moscow and Rostov regions are presented. The purpose of the research is to carry out a variety testing of carrots in two ecological-geographical zones and to identify differences in individual qualitative and quantitative characteristics. Research conducted in 2017-2018. The meteorological conditions of 2017–2018 in the Moscow Region (MO) were unfavorable for the development of carrots in the “fork” phase and the beginning of the formation of roots. In the Rostov region, hot and dry weather in July and August negatively influenced the growth of the development of roots. The material for research was 3 varieties and 3 carrot hybrids of the domestic breeding: Corsar, Shantene korolevskaya, Nante, F₁ Tavrida, F₁ Poisk 32, F₁ Poisk 41. Field experiments were established according to generally accepted methods. The samples differed significantly in the length of the roots: roots grown in the Rostov region had a greater length than in the Moscow region, with the exception of the Shantene korolevskaya variety (11.9 and 13.2 cm, respectively) and the hybrid F₁ (18.4 and 15.8 cm, respectively), which observed the opposite trend. In terms of yield, the varieties and hybrids obtained in the MO were significantly superior to similar samples grown in the Rostov region. In the south, during two years of testing, the Shantene korolevskaya variety (55.0 and 54.9 t/ha) performed best of all. In the Moscow region, the highest yield was shown by the variety Shantene korolevskaya (75.0 and 69.5 t/ha, respectively), hybrids F₁ (73.2 and 69.0 t ha), F₁ Poisk 41 (69.0 and 64. 7 t/ha). The spread of leaf diseases in the conditions of Moscow and Rostov regions was reduced to the fact that in 2018 compared to 2017, the samples were more stable, except for the F₁ Tavrida and F₁ Poisk 41.

Keywords: carrots, cultivar, hybrid, yield, quality, Moscow region, Rostov region.