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Table 1 Survival rate, Dry shoot biomass, Dry root biomass, Shoot soluble sugar, Shoot Pro of Dongdao-4 and Jigeng-88 plants before, after exposure to medium supplemented with mannitol and recovery from the mannitol treatment. Three-week-old seedlings were transferred to solution containing 40 mM mannitol for 1 day, and 80 mM mannitol for 1 day, and then exposed to 120 mM mannitol for 5 days, finally recovered for 15 days. Data are means ±SE (n ≥ 4). Means with different letters are significantly different (P < 0.05) within the same treatments. Asterisks (*) indicate significant differences between control and treatments of the same genotype which were determined by Student’s t-test (*0.01 < P < 0.05, **0.001 < P < 0.01, ***P < 0.001)

From: Comparative studies on tolerance of rice genotypes differing in their tolerance to moderate salt stress

  Before treatment 120 mM Mannitol Recovery
Dongdao-4 Jigeng-88 Dongdao-4 Jigeng-88 Dongdao-4 Jigeng-88
Survival rate (%) 100 ± 0.00 100 ± 0.00 100 ± 0.00***a 72.92 ± 3.45b  
Dry shoot biomass (mg plant−1) 113.12 ± 4.47 100.68 ± 3.49 132.18 ± 7.68 **a 83.53 ± 2.99 *b 526.08 ± 18.83 ***a 175.03 ± 13.82 *b
Dry root biomass (mg plant−1) 12.81 ± 0.12 12.5 ± 0.62 19.95 ± 0.88**a 12.73 ± 0.35b 66.23 ± 3.85***a 16.48 ± 0.66b
Shoot soluble sugar (mg g−1 DW) 1.79 ± 0.11 1.94 ± 0.43 16.61 ± 0.73***a 13.52 ± 0.41***b  
Shoot proline (mg g−1 DW) 0.67 ± 0.06 0.75 ± 0.06 1.32 ± 0.14**a 0.64 ± 0.02b