Assessment of the resistance of varieties and collection samples of flax to fusarium wilt

Abstract

The purpose of the work is to identify samples of flax, resistant to fusarium wilt. The assessment of resistance to fusarium wilting of varieties and samples of flax-long-lived (Linum ussitatissimum L.) from the “Collection of Russian flax” of the Flax Research Institute (NIIL, Torzhok) was carried out. The experiment was conducted for three years from 2019 to 2021. Most of the samples showed average resistance to the disease. The greatest degree of resistance to fusarium wilting (87.5-100%) was shown by the the variety Sursky (86.9%) of the selection of the Flax Research Institute. The lowest resistance to the disease was shown by varieties B-100 (40.4%) and Peresvet (37.1%), their resistance indicators were lower than the susceptibility of the AR-5 standard variety (45.6%), which allows them to be classified as highly susceptible.