First Russian hybrid of winter rapeseed Debyut

The first Russian simple interline hybrid of winter rapeseed Debyut (VN 521) was developed under crosses of lines 39712 (maternal form) and ORK 10 (paternal from). The hybrid Debyut is based on CMS-ogura. The hybrid Debyut belongs to mid-maturing group of varieties and hybrids, is characterized with plants uniformity, simultaneous flowering and maturity, suitable for mechanized harvesting. In competitive trials of 2019-2020, the hybrid Debyut exceeded the standard variety Loris in seed yield by 0.71 t per ha, in oil yield - by 0.29 t per ha and by these traits it is similar to one of the most productive foreign hybrids of EU Merkure. Oil content in seeds (46.2%) of the hybrid Debyut is at the level of the standard variety Loris. The hybrid is characterized with large size of seeds. Weight of 1000 seeds of the hybrid in average for two years is equal to 4.2 g, of the standard variety - 3.9 g. The parental forms of the hybrid Debyut are fitted well by flowering dates. A maternal line 39712 is characterized with quite good yield, oil content in (46.5-47.0%), 1000 seed weight is 4.5 g. Glucosinolate content is equal to the same one of the standard variety Loris. A paternal line ORK 10 is inferior by yields to the standard and maternal line.