02222naa a2200337 a 450000100080000000500110000800800410001902400330006010000160009324501470010926000090025650000510026552011650031665000250148165000120150665000180151865000280153665000110156465000180157565000200159365000200161365300280163365300280166165300220168965300230171170000230173470000150175770000210177270000220179377300690181521352692022-03-21       2021    bl uuuu     u00u1 u    #d7 a10.37856/bja.v96i2.42752DOI1 aMOREIRA, A.  aShoot dry weight yield, bromatological composition, and nutritional status of alfalfa cultivars in tropical conditions.h[electronic resource]  c2021  aTítulo em português: Revista de Agricultura.  aImprovement to animal genetics requires the supply of superior quality forage, such as alfalfa (Medicago sativa L.). Under tropical and subtropical conditions in Brazil, alfalfa cultivation has been restricted to the 'Crioula' cultivar, although studies have indicated that other cultivars have excellent potential of yield. The objective of this work was to evaluate the adaptation and longevity of 92 alfalfa cultivars to the tropical edaphoclimatic conditions by assessing shoot dry weight yield (SDWY), crude protein content (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), and nutrient content in SDWY. The 'Crioula', 'P 105', 'Rio Grande', and 'Springfield' cultivars were the most promising owing to their higher yield and lower reduction in SDWY. Crude protein (CP) content varied among cultivars, with the highest value found in 'Pro INTA Lujan' (24.5%) and the lowest found in 'Pecos' (18.8%). NDF content ranged from 25.8% ('Key II') to 38.7% ('California 50'), while ADF content ranged from 16.4% ('F 708') to 24.8% ('Diamond'). Nutrient levels of all cultivars were within the levels considered appropriate for tropical conditions.  aAcid detergent fiber  aAlfalfa  aCrude protein  aNeutral detergent fiber  aAlfafa  aMatéria Seca  aMedicago Sativa  aProteína Bruta  aFibra detergente ácido  aFibra detergente neutro  aMineral nutrition  aNutrição mineral1 aFERREIRA, R. de P.1 aVILELA, D.1 aMORAES, L. A. C.1 aFREITAS, A. R. de  tBrazilian Journal of Agriculturegv. 96, n. 2, p. 425-438, 2021.