Evaluation of the yield and shelf life of garden carrot

Carrots, one of the main vegetable crops worldwide, exhibit significant polymorphism. This quality is important for breeding aimed at improving agronomic traits and yield. In this article, we carry out an integral evaluation of 20 carrot varieties and hybrids cultivated in the Moscow Oblast in terms of valuable traits. The research was conducted in 2022–2024. The Moskovskaya Zimnyaya variety was used as the standard. To assess the stability and variability of the yield, the coeffi cient of variation ( CV ), regression coeffi cient ( b i ), and deviation from regression ( S 2 d i ) were calculated. The average yield of garden carrots in the Moscow Oblast was 3.6 kg/m 2 , with a preservation level of 93.2%. High yield was noted in the following specimens: Nazareth F1 (temp. coll.-3157) – 4.9 kg/m 2 , Canton F1 (temp. coll.-3155) – 5.4 kg/m 2 , Mokum (temp. coll.-3156) – 5.8 kg/m 2 ; the survivability of these specimens was 96.3–98.3%. High root weight was noted in the Mestnaya variety (coll.-1984) – 300.3 g. A correlation was established between marketability and marketable yield (r=0.759) and total yield (r=0.517). Root weight was more closely related to root diameter (r=0.555) than to the core diameter to total diameter ratio (r=0.399). Among the genotypes that are stable and respond weakly to changing environmental conditions ( b i < 1; S 2 d i = 0) are Mokum (temp. coll.-3156), Parisen Market 5 (temp. coll.-3262), Yuwarot (coll.-3164), and Rakhat Lukum (temp. coll.-3255). The following varieties were characterized by good response to changing conditions ( b i > 1; S 2 d i = 0): Tavrida (coll.-3146), Karibou (coll.-3154), Yaponskaya (coll.-1419), F 1 Ratio (coll.-3251), Mestnaya Krasnaya (coll.-3265), Matilda F 1 (coll.-3319), and Rosifor (coll.-3153).