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Information × Registration Number 0225U004839, (0124U001513) , R & D reports Title To study the breeding material of alfalfa for the manifestation of adaptive features aimed at improving root characteristics and productivity in contrasting environments popup.stage_title Вивчити селекційний матеріал люцерни за проявом адаптивних особливостей спрямованих на поліпшення кореневих ознак та продуктивності у контрастних середовищах Head Tyshchenko Andrii V., Доктор сільськогосподарських наук Registration Date 19-12-2025 Organization Institute of climate smart agriculture of the national academy of agrarian sciences of Ukraine popup.description1 To establish the features of the manifestation of valuable breeding and economic characteristics of alfalfa breeding material aimed at improving root characteristics, to select breeding material with a powerful root system and diverse architecture, with high stable productivity of fodder mass, seeds that are adapted to abiotic factors popup.description2 Based on the results of the study, the best breeding numbers were selected for forage and seed productivity, taking into account the morphological characteristics of the root system against the background of inoculation, which will be included in the breeding process. In terms of root system volume (51.5%) and root mass (46.7%), the variety Unidro in symbiosis with Ekovital showed the greatest effect, while in terms of the number of branches (70.1%) and root system area (30.3%) Dob.A-N. No. 38 with AMF, and above-ground mass (43.1%) by Unistro with Rizobit + Bacillus sp.4. The highest yield of green mass (5.09 kg/m2) and dry matter (1.24 kg/m2) was demonstrated by the Unistro variety in symbiosis with Rizobit, and the yield of seeds 57.0‒57.5 g/m2 ‒ the variety Uniro in symbiosis with Rhizobium and Primorka + Rizobit + Bacillus sp.4. In the control nursery for fodder use in the second year of grass growth, numbers 5/24, 14/24, 28/24 and 42/24 stood out in terms of green mass yield (5.30–5.36 kg/m²) and dry matter yield (1.32–1.33 kg/m²). In the third year of life, alfalfa number 45/23 stood out in terms of green mass yield (4.97 kg/m²) and dry matter yield (1.22 kg/m²). In the nursery of the competitive variety testing for fodder use in the second year of life, the maximum yield (51.1-51.5 green mass, 12.8 t/ha dry matter) was formed by Dob. A-N No. 38 and the Strumochok variety. In the third year of life of the grass stand, the Lamia variety formed the highest yield of green mass 39.3, and dry matter Dob. Vertus 9.6 t/ha. In the nursery of the competitive variety testing for seed use, in the second year of the grass stand's life, the highest seed yield (470 kg/ha) was achieved by the Elegy variety. In the third year of life, the highest seed productivity (378 kg/ha) was achieved by the Lamia variety. Product Description popup.authors Olena D. Tyshchenko popup.nrat_date 2025-12-19 Close