Variety heterogeneity usage in winter wheat selection | Использование сортовой гетерогенности в селекции озимой пшеницы
2010
Zosimenko, M.V., Stavropol State Agrarian Univ. (Russian Federation)
While reproducing of the soft winter wheat variety Stepnaya 7 (S7) for a long time, a complex heterogeneous structure is formed. Composite varieties (composites) Bosmina (BS) and Integral K (IK) are received when combining of morphologic selection lines which are extracted from S7. Two years of studies have shown that they possess a complex of valuable agronomic characters. The composites are notable by a shorter vegetation period (by 4-7 days) in compare with S7 and the selection lines used. They exceed the standard variety Don 95 by the yields. The yield gain of BS is +820 kg/ha and the one of IK is +900 kg/ha. The four-component composite IK and the selection line 43 used in combinations for IK creation, forms a high grain nature (782 gram/liter). This parameter of BS is near to the ones of Don 95 and 7 (766, 764 and 765 g/l, respectively). BS and IK have a higher level of vitreousness (91% and 89% respectively) in compare with the basis one (60%). A content of gluten of the all samples has varied in 2 years significantly. The one of IK has been 28.6-32.6% (the 1 group of grain quality). BS and the all other selection lines have the parameter of the 1 or of the 2 groups of grain quality. The composites BS and IK are prospect for adaptive intensification of agriculture and breeding for grain quality
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