The article presents steps of development of a new yellow lupin variety 'Bulat'. Its pedigree and description for competition tests years are given. In 2009 five productive, tall plants without extern anthracnose symptoms have been selected from the hybrid 6-02-10-10 under heavy anthracnose epiphytoty. Later the line 09-3-50-2 has been selected for green mass and seeds yield. It was tested in a competition test nursery since 2013. The line named as 'Bulat' was included to The State List of Breeding Achievements Allowed for Use. The average seed yield for six tests years made 1.87 t/ha and the yield of its green mass made 60.4 t/ha. 'Bulat' is for universal use (grain forage, green fodder, and grass conserved forage). It is resistant to pods cracking and seeds shedding. Weight of 1000 seeds is 112 grams. Vegetation period is 90–99 days. Crude protein in seeds is 42%, in dry matter of green mass it is 18%. Seed alkaloid content is 0.06%, in green mass it is 0.02%. The variety is resistant to Fusarium and tolerant to anthracnose. It suits for cultivation on light and cohesive soils.

The article presents the results of a comparative assessment of grain productivity and adaptability indicators of various varieties of yellow lupine cultivated on soddy-podzolic sandy soil. We studied 8 varieties of lupine of domestic selection of the All-Russian Research Institute of Lupine, Novozybkovskaya SHOS; neighboring countries - Belarus and foreign selection (Germany), as well as the hybrid material of the Novozybkovskaya SHOS for 2016–2020. The adaptability of variety samples was comprehensively tested in terms of environmental stability and plasticity, using the criterion of "yield". Changes in meteorological conditions over the years of research made it possible to objectively assess the variation in the productivity of lupine by grain. For five years of testing, the grain yield varied from 6.4 c/ha Vladko (Belarus) to 11.8 c/ha, Novozybkovsky 100 (Novozybkovskaya SHOS). On average, changes in the productivity of varieties of VNII lupine from 9.7 to 11.3 c/ha, Novozybkovskaya SHOS – 10.7–11.8 c/ha, Belarusian breeding – 6.4–9.1 c/ha, foreign – 8.3–8.7 q/ha. Samples 5-10-84 (13.2 c/ha), 1-08-7-75 and 2-13-33 (12.7 c/ha) and 7-13-65 (12,5 q/ha). According to the set of indicators of adaptability, the All-Russian Research Institute of Lupine Nadezhny and Bulat turned out to be the best among the varieties; Belarusian selection Kastrychnik; Novozybkovskoy SHOS – Druzhny 165 and Novozybkovsky 100. From the hybrid material of the Novozybkovskaya SHOS promising numbers 1-08-7-75, 5-10-84, 4-12-302, 2-13-33, which have genetic flexibility, adaptability and stability in conditions of sandy and sandy loamy soils of the South-West of the Bryansk region.

To successfully solve the problem of vegetable protein deficiency in animal feeding and preserve soil fertility, the need for expanding the sown area under yellow lupine has been established. The results of competitive testing of varieties and varieties of yellow lupine on sandy and sandy loamy soils according to the parameters of the structural analysis of plants, resistance to diseases and grain productivity are presented. Breeding variety samples 4-12-302, 3-12-182, 5-10-84, 1-08-7-75 were obtained, with an average yield of 14.7-16.5 kg/ha, which is higher than the average standard by 2, 0-3.8 kg/ha. The grades and varieties of yellow lupine are evaluated for their resistance to anthracnose in the field. The correlation coefficients between productivity and weather conditions were calculated in the years of research, which to a greater extent (60%) affect the structural elements and productivity.