Fig. 4From: Metabolomic analyses reveal substances that contribute to the increased freezing tolerance of alfalfa (Medicago sativa L.) after continuous water deficitSemi-lethal temperature, LT50, of alfalfa crowns collected in WD and WW. WW and WD: substrate moisture at 80 and 25% of water-holding capacity, respectively. The significances of differences between and within phases were evaluated using a multiple-range test. Different letters indicate significant differences (P < 0.05)Back to article page