In the Russian Federation, one of the main important legume fodder crops is perennial alfalfa (Medicago sativa L., Medicago varia Mart., Medicago falcata L., Medicago borealis Gross., Medicago quasifalcata). Studies with this crop were conducted in breeding nurseries in the Non-Chernozem zone of Russia on sod-podzolic soils (V.R. Williams Scientific Research Center). The purpose of scientific research is to evaluate the source material, identify and involve in the further breeding process new biotypes and indi-viduals that have shown good adaptability to the soil and climatic conditions of the Central Non-Chernozem zone of the Moscow region, with early and friendly growth, productive longevity, good resis-tance to alfalfa root rot and other crop diseases. Samples of alfalfa, changeable, yellow, etc., in the amount of 61 numbers, were selected for study. The alfalfa varieties of the V.R. Williams Federal Re-search Center Vega 87 and Nakhodka were used as the standard. This article provides indicators of winter hardiness, foliage of plants, the time of onset of alfalfa development phases, and the height of new samples in the first breeding nursery. The new alfalfa hybrids studied by development phases: spring re-growth and flowering turned out to be close and the differences were 2–4 days from the standard Vega 87 variety. The best examples of alfalfa are variable, yellow, etc. We will use it when creating a new variety of perennial alfalfa for sod-podzolic soils of the Non-Chernozem zone of the Russian Federation, specifically for the conditions of the Moscow region, where thaws are common in winter and cyclonic torrential precipitation in summer.
alfalfa, variety, hybrids, development phases, plant height, foliage
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