The aim of the study was to investigate the development of high-quality seeds in spring soft wheat of various biotypes depending on sowing time and preceding crop in the southern forest-steppe of Western Siberia. Long-term research conducted at the Seed Production Department of the Omsk Agricultural Research Center under contrasting conditions from 2015 to 2024 revealed a correlation between wheat seed size and germination ability, as a function of the variety's maturity: the later the wheat variety ripened, the larger its seeds, while the germination energy and viability. Mid-early and mid-season varieties, on the other hand, produced seeds with a lower 1,000-kernel weight but better germination ability. Sowing mid-early and mid-season wheat varieties after fallow and grain crops from May 7 to 28, under all August temperature conditions, was optimal for producing seeds with high sowing properties. Sowing mid-late varieties after fallow from May 7 to 21, and after grain crops from May 7 to 28, regardless of the August temperature, produced wheat seeds of full size and germination ability. Under conditions where the average monthly temperature in August was 19.1-19.3°C, all wheat biotypes experienced a decrease in 1,000-kernel weight with a simultaneous increase in germination energy and laboratory germination. This trend was most pronounced among mid-season and mid-late varieties. Late sowing (early June), as a rule, ensured the production of seeds with low sowing properties in varieties of all maturity groups.
soft spring wheat, variety, predecessor, sowing time, seed quality
1. Sistema adaptivnogo zemledeliya Omskoy oblasti / I.F. Hramcov, V.S. Boyko, L.V. Yushkevich [i dr.]. Omsk: Izd-vo IP Maksheevoy E.A., 2020. 522 s. EDN: https://elibrary.ru/XBLSCS
2. Popolzuhin P.V., Vasilevskiy V.D., Gaydar A.A. Sistema uskorennogo razmnozheniya i vnedreniya v proizvodstvo Omskoy oblasti novyh sortov pshenicy i yachmenya selekcii Sibirskogo NIISH // Tr. Kubanskogo GAU. 2015. Vyp. 3(54). S. 249-253. EDN: https://elibrary.ru/VUJMXT
3. Sravnitel'noe izuchenie sortov yarovoy myagkoy pshenicy otechestvennoy i zarubezhnoy selekcii v usloviyah Omskogo Priirtysh'ya / N.A. Popolzuhina, E.S. Kuz'mina, P.V. Popolzuhin [i dr.] // Tr. Kubanskogo gosudarstvennogo agrarnogo universiteta. 2022. № 102. S. 180-184. EDN: https://elibrary.ru/FZPHQE
4. Vavilov N.I. Mirovye resursy i zasuhoustoychivost' sortov // Teoreticheskie osnovy selekcii. M.: Nauka, 1987. S. 69-79.
5. Lentochkin A.M., Kuklina E.N. Formirovanie posevnyh kachestv semyan rannespelymi, srednerannimi i srednespelymi sortami yarovoy pshenicy // Permskiy agrarnyy vestnik. 2022. № 2 (38). S. 71-77. EDN: https://elibrary.ru/CJUIJC
6. Hramcov I.F., Popolzuhin P.V., Vasilevskiy V.D. Selekciya, semenovodstvo i sovershenstvovanie tehnologii vozdelyvaniya zernovyh kul'tur - osnovnye faktory stabilizacii proizvodstva zerna v usloviyah importozamescheniya // Tr. Kubanskogo GAU. 2016. Vyp. 2 (59). S. 390-398. EDN: https://elibrary.ru/WLLDEN
7. Optimizaciya sroka poseva dlya polucheniya vysokoy produktivnosti kachestvennyh semyan tverdoy pshenicy / Popolzuhin P.V., Parshutkin Yu.Yu., Vasilevskiy V.D. [i dr.] // Vestnik Omskogo GAU. 2020. № 4 (40). S. 43-52.
8. Siroshtan A., Kavunets V., Derhachov O. [et al.] Yield and Sowing Qualities of Winter Bread Wheat Seeds Depending on the Preceding Crops and Sowing Dates in the Forest-Steppe of Ukraine // American Journal of Agriculture and Forestry. 2021. Vol. 9, No. 2, pp. 76-82. EDN: https://elibrary.ru/WCBSGM
9. Zharkova S.V., Chevychelova N.V., Novikova S.S. Formirovanie pokazateley vshozhesti i energii prorastaniya semyan u sortov yarovoy myagkoy pshenicy v raznyh sredovyh usloviyah // Vestnik Altayskogo gosudarstvennogo agrarnogo universiteta. 2021. № 5 (199). S. 5-10. EDN: https://elibrary.ru/YQLGBX
10. Kuleshov N.N. Agronomicheskoe semenovedenie. M.: Izd-vo s.-h. lit-ry, zhurnalov i plakatov, 1963. 304 s.
11. Kuleshov N.N. Formirovanie, naliv i sozrevanie yarovoy pshenicy v zavisimosti ot usloviy proizrastaniya // Zapiski Har'kovskogo SHI. 1951. T. 7. S. 51-139.
12. Metodika Gosudarstvennogo sortoispytaniya sel'skohozyaystvennyh kul'tur. Vypusk pervyy. M., 1985. 268 s.
13. Metodika Gosudarstvennogo sortoispytaniya sel'skohozyaystvennyh kul'tur. Vypusk vtoroy. M., 1989. 194 s.
