Alfalfa (scientific name Medicago sativa L.), also called lucerne, is the “king of forages”. Its wild relatives (Medicago spp.) are distributed in vast regions, from Spain to China and from Sweden to North Africa. Alfalfa has a cultivation history of more than 4000 years. It was first cultivated in Iran, Turkmenistan and Caucasus in 2000 BC as verified by archaeological evidence, and in Babylon...