Morphological and Biochemical Variation in Carrot Genetic Resources Grown under Open Field Conditions: The Selection of Functional Genotypes for a Breeding Program

Carrot (Daucus carota), one of the most economically important root vegetables, shows a wide range morphological and biochemical diversity. However, there is lack simultaneous systematic study regarding composition characteristics in carrot genetic resources, which crucial for crop improvement. For this reason, characteristics, carotenoids, free sugar content 180 resources grown open field conditions from March to June 2020 were accessed select lines potential breeding program. Altogether, 15 qualitative 4 quantitative agronomical evaluated grouped into four categories based on color (orange, yellow, white, purple). Three carotenoids (lutein, α-carotene, β-carotene) three sugars (fructose, glucose, sucrose) also analyzed. The results revealed variation both traits. Most orange (n = 142), followed by white 16), yellow 14), purple 8). Carotenoid profile highly dependent showed variability, while independent color. Alpha- β- carotene major carrots representing 43.3 41.0% total carotenoids. In contrast, lutein was dominant other colored (79.7–98.6% carotenoids). sucrose sugar, glucose fructose. that some elevated carotenoid content. diversity observed might be useful improving agronomic traits programs.