The results of carrying out the researches on the selection of spring wheat in Tuva

The purpose of the researches was to carry out complex assessment of the specimens of spring wheat in forest-steppe zone of the Republic of Tyva, to reveal the most adapted specimens to climatic conditions of the region for the creation of the varieties and their cultivation in sharp continental climate of the region. The researches were conducted in 2001-2018. In total more than 20 specimens of a gene pool of SibRICPB were studied. As a result of competitive variety testing carried out in the period of 2001-2005 two perspective specimens: 28-h-85 and 466-E-86 were revealed. Considering one of selected signs, the main for extreme climate of the region - stable and high productivity in bogar conditions, perspective specimen 466-E-86 under offered name of Chagytay was transferred to the State variety testing in 2006. In 2008 this variety was included into the State register of the selection achievements allowing using it across the East Siberian region. The variety is of mid-early, drought-resistant, under production conditions characterized by high productivity (from 1 to 4 t/hectare), weighing 1000 grains (on average 31.9 g) and the quality of grain (vitreousness of 81 %, the maintenance of crude gluten of 34.8 %, 80.7 units of MDG), high resistance to drowning, is steady against dusty brand, is hardy to mealy dew. For using in further practical selection in the conditions of Eastern Siberia as initial material specimen 51-h-85 can be recommended; 1202-E-92, 1305-E-01, as high and stable productivity (1.7-2.3 t/hectare) which are the most adapted for extreme climatic conditions, and also differing and weighing 1000 grains (38.6-43.8) on bogar and also quality of grain.