Diversity of Agro-Biological Traits and Development of Diseases in Alfalfa Cultivars during the Contrasting Vegetation Seasons

Alfalfa exhibits high adaptability to a range of environmental conditions. The aim this study was evaluate the agro-biological traits alfalfa and select its most promising cultivars under different contrasting vegetation seasons. field experiment carried out at Institute Agriculture Lithuanian Research Centre for Forestry. In 2016 2018, eleven origin were established in Endocalcari Epigleyic Cambisol. seasons 2017–2018 2019–2020, evaluated during winter; height spring regrowth; before flowering three cuts; fresh dry matter yields; we also examined development diseases cuts. cultivar Birutė from Lithuania distinguished by wintering, plant regrowth, flowering, yields. Timbale France flowering. Magnat Romania fact that it less damaged downy mildew. Jõgeva 118, Juurlu, Karlu Estonia their wintering they diseases. Eugenia Italy yields