Effect of variety-improving breeding on garden carrot quality

Abstract

The assessment, classification, characterization, and preservation of germplasm are the initial requirements for any crop genetic improvement programs aimed at promoting economically important characters. The research goal was to carry out family selection and identify families of garden carrots with high yields, quality and resistance to diseases. The research involved twelve accessions that were identified by family selection. In the course of tolerance studies, two families were identified from the Vitaminnaya 6 variety: VS-1, VS-4; and two families ChS-4 and ChS-6 were identified from the Royal Chantenay variety which were characterized as weakly susceptible to leaf diseases Alternaria blight and fusarium blight. When selecting for qualitative and quantitative indices, the VS-1 and VS-4 families had the root weight with a vegetative part (2.22 and 2.59 kg, respectively) and without it VS-1 (1.765 kg) and VS-4 (2.23 kg); percentagewise, pure roots without tops in VS-1 (79.5%), VS -4 (86.1%); and ChS-4 and ChS-6 families (4.8 and 4.6 cm, respectively). The ratio of the total weight of roots without tops percentagewise made in ChS-4 (82.8%), and in ChS-6 (81.0%). Given the wide variety of identified carrot accessions through family selection, further work will be carried out with them through hybridization. Therefore, the results of this selection may directly contribute to the identification of diverse parental forms. When selecting genotypes, it is necessary to take into account the sampling scale.