Creation and introduction into production of a new variety of soft winter wheat for cultivation in fallows and the best non-fallow predecessors

Relevance. Winter wheat is the main food crop in Russia, having the leading role in gross grain harvest improvement. The use of new adaptive varieties of winter common wheat in agriculture is the most realistic means of reducing the adverse effects of climate change ensuring a productivity rise and improving the technological properties of grain and flour. The developed winter wheat varieties should combine potential productivity and resistance to abiotic and biotic environmental factors through improved adaptability.

Methods. The study was carried out in 2018–2022 on the fields of the research crop rotation of the FSBSI «ARC “Donskoy”», according to a green manure fallow due to the methods of SVT and a field trial.

Results. The winter common wheat variety Zodiak can form a consistently high yield after various forecrops from 5.63 t/ha, when sown after sunflower to 10.23 t/ha when sown in green fallow. The variety formed the maximum productivity of 11.14 t/ha when sown in weed free fallow in 2018 and 2022. The study of the physicochemical properties of grain showed that the quality of grain and flour in the Zodiac variety corresponds to valuable wheat varieties. The protein percentage is 14.15%, gluten is 28.5%, the gluten quality corresponds to group I (IDK is 67 bp), the alveograph index is 255 f. a., the volume yield per 100 g of flour is 700 cm³, the baking assessment is 4.4 points, valorimetric estimation is 79 bp, SDS-sedimentation is 59 ml. The new winter common wheat variety Zodiak has been included in the State Register of Breeding Achievements since 2022 and recommended for cultivation in the 6th North Caucasus region.

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