Fig. 5From: Metabolomic analyses reveal substances that contribute to the increased freezing tolerance of alfalfa (Medicago sativa L.) after continuous water deficitChanges in the contents of malondialdehyde, carbohydrates (starch and total soluble sugar), and nitrogenous compounds (total soluble protein, total amino acids, and proline) in the four phases. 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