Table 3. Effect of low temperature on carbohydrate content in leaves of two zoysiagrass genotypes.
Treatments | Genotypes | Carbohydrates content (mg/g DW) | ||||||
---|---|---|---|---|---|---|---|---|
Sucrose | Glucose | Fructose | Trehalose | Fructan | Starch | TSS | ||
Optimum | Latitude 40 | 8.3±0.56 a | 23.5±0.34 a | 7.6±0.86 a | 3.5±0.43 a | 45.3±3.75 a | 72.5±5.64 a | 52.3±4.31 a |
Latitude 22 | 8.5±0.76 a | 22.4±0.29 a | 7.9±0.49 a | 2.9±0.38 a | 42.3±3.02 a | 73.7±6.35 a | 50.5±3.45 a | |
Suboptimum | Latitude 40 | 25.6±3.21 a | 28.5±3.21 a | 12.5±1.58 a | 16.5±1.97 a | 68.5±5.34 a | 93.5±6.34 a | 95.1±5.64 a |
Latitude 22 | 15.6±2.14 b | 25.3±2.12 a | 8.6±1.34 b | 6.5±1.12 b | 47.6±3.78 b | 79.3±5.31 b | 68.3±4.31 b | |
Chilling | Latitude 40 | 58.6±5.31 a | 38.6±2.98 a | 25.3±1.78 a | 25.7±1.71 a | 94.5±6.78 a | 113.4±8.64 a | 153.1±8.64 a |
Latitude 22 | 32.5±4.12 b | 28.5±3.45 b | 15.4±1.13 b | 12.5±1.35 b | 68.3±4.58 b | 92.1±9.31 b | 98.3±7.61 b | |
Freezing | Latitude 40 | 65.4±5.34 a | 42.3±3.42 a | 34.1±2.12 a | 52.1±3.97 a | 110.5±7.34 a | 62.5±4.36 b | 210.2±9.31 a |
Latitude 22 | 45.3±3.98 b | 32.1±2.97 b | 22.1±1.97 b | 21.2±4.31 b | 88.4±4.31 b | 93.5±6.84 a | 143.5±9.84 b |
Note: Means followed by the same lower-case letters in a column within a temperature treatment indicated no significant difference between two genotypes at P<0.05.