Evaluation of a collection of onion on the grounds of a leaf socket and bulb

In commodity farms, the technology of growing onions is sown by sowing seeds from a one-year crop. This, in turn, introduces new requirements for growing technology, technical means and, most importantly, for varieties and hybrids of onions. The average yield of onion in Russia is at a low level - 20-30 tons/ha. New varieties and hybrids must have precocity, high yield, resistance to diseases and pests, good crabness. The success of selection work, as is known, is largely determined by the source material. The priority is to create heterotic hybrids of onion, showing increased viability, high stable yield and leveling, general resistance to pathogens, increasing the content of vitamins, proteins, dry substances, increasing cold resistance, drought resistance, and keeping quality. In the department of selection and seed production of All-Russian Scientific Research Institute of Vegetable Growing - a branch of FSBSI FSVC is breeding onions for growing in the annual culture of the Central strip of Russia. The study was conducted in 2017 with the setting of experiments in the open field. In the collection nursery 24 samples of onions of different geographical origin were investigated: Russia, the Netherlands, Italy and the USA. During the study, phenological, biometric measurements and a morphological description of the samples were carried out. As a result of the study of a set of economically valuable traits, the following samples of onion were identified and involved in the work: Ermak, Stuttgarter Riesen, Sturon, Forward, Crx 2381 F1, Santero F1, Sandra F1, Lamyca F1, Bennito F1, Premium F1.