Table 6 Total soluble sugars (mg g-1) in the leaves of two soybean genotypes (Coraline and Speeda) at 3 different sampling dates as affected by hydrogen peroxide foliar spray application under drought stress conditions (D: drought from R1 till R2 stage, D1: drought from R1 till R2 stage + 1 mM hydrogen peroxide, D5: drought from R1 till R2 stage + 5 mM hydrogen peroxide, D10: drought from R1 till R2 stage + 10 mM hydrogen peroxide, CD: continuous drought starting from R1 stage, CD1: continuous drought starting from R1 stage + 1 mM hydrogen peroxide, CD5: continuous drought starting from R1 stage + 5 mM hydrogen peroxide, CD10: continuous drought starting from R1 stage + 10 mM hydrogen peroxide).
Sampling date | 3 days after drought stress application at R1 stage | 3 days after R3 stage started | At the end of R4 stage | |||
|---|---|---|---|---|---|---|
Treatment | Coraline | Speeda | Coraline | Speeda | Coraline | Speeda |
Control | 42.5c | 45.9d | 36.1b | 40.2d | 33.3b | 35.8b |
D | 123.8b | 165.2c | 65b | 84.4c | 51.3a | 59.7a |
D1 | 160.1a | 228.3a | 68.9b | 90.4c | 53.9a | 61.1a |
D5 | 182.7a | 215.8ab | 70.9b | 86.1c | 54.1a | 60.8a |
D10 | 173.9a | 195bc | 69b | 84.9c | 52.8a | 59.7a |
CD | 125b | 163.9c | 175.3a | 235.7b | NA | NA |
CD1 | 162.1a | 230.4a | 184.9a | 286.4a | NA | NA |
CD5 | 177.7a | 213.8ab | 189.2a | 271.9a | NA | NA |
CD10 | 173.5a | 195.5bc | 186.6a | 262.8a | NA | NA |