Assessment of the contribution of ane-mophilic pollen transfer to genetic contamination of oil flax varieties

In fiber and oil forms of common flax, entomophilous and anemophilic pollen transfer is possible. However, the share of the contribution of anemophilic cross-pollination to genetic contamination is not well understood. To determine the probability of anemophilic pollen transfer between adjacent varieties of oil flax in 2017 a special field experiment was established on the basis of the by V.S. Pustovoit All-Russian Research Institute of Oil Crops, Krasnodar. The brown-seed oil flax variety VNIIMK 620 was around sown with the yellow-seed variety VNIIMK 630. After the plants ripened, along eight azimuths of the horizon in the variety VNIIMK 630 samples of plants were taken. The F1 seeds obtained from them were sown the following year. In the F2 progeny, appeared brown seeds were counted. The average frequency of occurrence of brown seeds in F2 in the yellow-seed variety VNIIMK 630 in 2018 was 0.097 %. This level of genetic contamination poses a threat to preserve the varietal purity of the breeders and foundation seeds of flax...