Table 2. Raffinose, trehalose, galactose, fructose, glucose and sucrose concentrations in leaves and roots of eight different scion/rootstock combinations under three different water availability conditions.
| Comparison group | Combinations | Tissue | Condictions | Raffinose μg gFW−1 | Trehalose μg gFW−1 | Galactose μg gFW−1 | Fructose μg gFW−1 | Glucose μg gFW−1 | Sucrose μg gFW−1 |
|---|---|---|---|---|---|---|---|---|---|
| 1 | RL | Leaves | C | 4.44 ± 1.32aA | 8.01 ± 0.68aA | 4.07 ± 1.08aA | 830.54 ± 39.81bA | 351.47 ± 23.42bA | 4448.87 ± 363.14bA |
| Leaves | S | 5.82 ± 0.86aA | 5.89 ± 1.54aA | 5.43 ± 1.49aA | 521.82 ± 28.96aA | 285.99 ± 10.37aA | 4726.54 ± 366.70bA | ||
| Leaves | R | 6.15 ± 1.29aA | 4.47 ± 0.89aA | 7.68 ± 1.03aB | 510.48 ± 49.25aA | 229.85 ± 15.55aA | 3430.37 ± 259.87aA | ||
| Roots | C | 10.87 ± 2.33aA | 12.01 ± 3.27aA | 10.91 ± 2.76aA | 853.87 ± 38.13aA | 315.51 ± 11.02aA | 4981.34 ± 323.75aA | ||
| Roots | S | 15.26 ± 2.26aA | 8.12 ± 2.51aA | 18.20 ± 1.78aA | 1255.91 ± 43.78bA | 415.22 ± 15.62bA | 7269.38 ± 159.31bA | ||
| Roots | R | 16.61 ± 2.47aA | 11.30 ± 2.01aA | 14.41 ± 2.73aA | 919.30 ± 97.70aA | 471.78 ± 20.60bA | 3789.03 ± 260.05aA | ||
| SM | Leaves | C | 10.17 ± 2.05aB | 9.53 ± 0.55bA | 10.38 ± 0.62bB | 810.47 ± 32.10bA | 308.84 ± 12.00aA | 6170.78 ± 530.66bB | |
| Leaves | S | 14.96 ± 1.12bB | 22.22 ± 1.57cB | 9.28 ± 1.43bB | 979.21 ± 36.32cB | 560.37 ± 48.01bB | 8727.67 ± 215.98cB | ||
| Leaves | R | 6.81 ± 1.41aA | 5.42 ± 1.71aA | 4.02 ± 1.00aA | 617.22 ± 30.71aA | 372.27 ± 16.30aB | 5074.45 ± 344.57aB | ||
| Roots | C | 11.87 ± 2.08aA | 21.98 ± 2.68bB | 12.96 ± 1.74aA | 1233.95 ± 62.42aB | 295.84 ± 28.74aA | 8206.05 ± 1365.32bB | ||
| Roots | S | 37.28 ± 3.08bB | 45.15 ± 2.29aB | 16.20 ± 3.07aA | 1595.06 ± 61.04bB | 442.67 ± 11.16bA | 9313.46 ± 109.04bB | ||
| Roots | R | 11.62 ± 0.72aA | 22.88 ± 2.14bB | 17.84 ± 2.79aA | 1096.71 ± 12.53aB | 753.19 ± 26.34cB | 3907.82 ± 95.05aA | ||
| 2 | SM/RL | Leaves | C | 4.52 ± 1.33aA | 5.23 ± 1.32aA | 2.97 ± 0.43aA | 583.86 ± 24.49bA | 323.32 ± 15.27aA | 4107.64 ± 238.41aA |
| Leaves | S | 8.60 ± 1.95aA | 6.38 ± 1.82aA | 6.80 ± 1.43bA | 818.06 ± 40.31cA | 546.01 ± 16.41bB | 9920.11 ± 311.11bA | ||
| Leaves | R | 4.46 ± 0.62aA | 8.08 ± 1.20aB | 6.07 ± 0.92bA | 408.74 ± 14.10aA | 320.48 ± 12.30aA | 3477.40 ± 242.05aA | ||
| Roots | C | 11.45 ± 2.39aA | 25.30 ± 1.14bA | 15.43 ± 1.96bA | 1153.57 ± 52.96aA | 446.95 ± 36.54bA | 4546.77 ± 151.59aA | ||
| Roots | S | 20.40 ± 3.76aA | 23.17 ± 1.39bA | 17.14 ± 2.25bA | 1561.78 ± 150.17bA | 366.93 ± 9.57aA | 7974.53 ± 372.71bA | ||
| Roots | R | 16.40 ± 1.58aA | 7.77 ± 1.67aA | 7.83 ± 1.65aA | 1080.29 ± 101.94aA | 367.89 ± 25.41aA | 4575.63 ± 824.16aB | ||
| RL/SM | Leaves | C | 6.09 ± 1.46aA | 3.37 ± 0.93aA | 9.03 ± 1.26bB | 623.47 ± 22.62aA | 268.34 ± 3.19aA | 4408.49 ± 216.20aA | |
| Leaves | S | 23.49 ± 2.58cB | 14.95 ± 1.18bB | 6.59 ± 1.15aA | 1036.62 ± 64.01bB | 438.93 ± 42.94cA | 8297.20 ± 1449.94bA | ||
| Leaves | R | 13.31 ± 1.16bB | 2.04 ± 1.03aA | 5.39 ± 0.28aA | 589.87 ± 13.52aB | 343.02 ± 11.65bA | 4415.87 ± 81.27aA | ||
| Roots | C | 17.11 ± 1.41aA | 24.54 ± 3.08bA | 16.13 ± 1.30aA | 1016.60 ± 42.87aA | 377.65 ± 25.31aA | 5999.95 ± 301.23bB | ||
| Roots | S | 37.99 ± 6.63bB | 42.22 ± 2.55cB | 12.81 ± 2.28aA | 1756.84 ± 89.25bA | 501.51 ± 22.33bB | 8793.19 ± 464.69cA | ||
| Roots | R | 17.08 ± 1.46aA | 14.75 ± 1.36aB | 11.28 ± 2.06aA | 1002.54 ± 44.02aA | 609.30 ± 11.63cB | 3134.63 ± 85.73aA | ||
| 3 | VO/RL | Leaves | C | 5.96 ± 1.20aA | 6.24 ± 0.89aA | 4.27 ± 0.72aA | 596.26 ± 12.71bB | 314.67 ± 11.74bB | 4302.79 ± 89.72bA |
| Leaves | S | 13.94 ± 0.63bA | 8.52 ± 0.61aA | 7.16 ± 0.74aA | 634.80 ± 42.11bA | 465.74 ± 12.79cB | 5600.13 ± 97.60cA | ||
| Leaves | R | 6.49 ± 1.36aA | 5.87 ± 1.60aA | 5.41 ± 1.19aA | 499.20±22.16aA | 232.35 ± 10.83aA | 3061.09±132.70aA | ||
| Roots | C | 17.01 ± 2.09bA | 11.53 ± 2.95aA | 17.53 ± 1.22bB | 1090.50 ± 95.09bA | 264.88 ± 19.93aA | 2843.78 ± 89.17aA | ||
| Roots | S | 7.59 ± 3.00aA | 26.24 ± 1.92bA | 16.92 ± 1.42bA | 1288.02 ± 80.42bA | 448.73 ± 30.21bA | 5349.44 ± 327.58bA | ||
| Roots | R | 9.35 ± 2.71aA | 6.91 ± 2.16aA | 11.24 ± 1.50aA | 789.15 ± 76.33aA | 633.31 ± 28.39cA | 3064.98 ± 230.06aA | ||
| VO/SM | Leaves | C | 3.59 ± 1.42aA | 8.92 ± 0.63aA | 4.14 ± 0.63aA | 513.25 ± 15.54aA | 266.61 ± 2.38aA | 4197.96 ± 245.72aA | |
| Leaves | S | 11.87 ± 2.26bA | 20.15 ± 0.96bB | 9.21 ± 1.66bA | 933.35 ± 20.65cB | 408.87 ± 24.95bA | 8194.20 ± 424.44cB | ||
| Leaves | R | 13.91 ± 2.76bB | 6.76 ± 1.09aA | 3.31 ± 0.34aA | 653.83 ± 19.30bB | 247.98 ± 16.40aA | 5485.43 ± 213.77bB | ||
| Roots | C | 12.10 ± 2.08aA | 19.94 ± 2.13aB | 10.31 ± 1.70aA | 1075.96 ± 66.40aA | 419.88 ± 27.83aB | 4959.96 ± 514.00bB | ||
| Roots | S | 29.36 ± 2.61bB | 56.52 ± 3.68bB | 13.49 ± 2.91aA | 1794.25 ± 128.95bB | 442.66 ± 33.97aA | 9111.56 ± 316.84cB | ||
| Roots | R | 14.00 ± 2.02aA | 20.82 ± 1.15aB | 15.11 ± 3.22aA | 959.60 ± 81.14aA | 886.51 ± 105.94bB | 3773.33 ± 137.59aA | ||
| 4 | TAL/RL | Leaves | C | 4.89 ± 1.21aA | 4.42 ± 1.02aA | 5.53 ± 1.52aA | 643.16 ± 12.98bB | 295.67 ± 4.86bB | 4369.74 ± 181.29aA |
| Leaves | S | 8.29 ± 2.04aA | 6.47 ± 1.55aA | 4.42 ± 1.60aA | 659.18 ± 57.47bA | 435.72 ± 8.84cA | 7040.65 ± 531.00bA | ||
| Leaves | R | 10.56 ± 0.28aA | 3.96 ± 1.56aA | 6.80 ± 1.10aA | 491.86 ± 16.66aA | 214.50 ± 8.52aA | 3844.72 ± 874.24aA | ||
| Roots | C | 15.40 ± 3.41aA | 10.85 ± 3.22aA | 15.51 ± 1.46bA | 1240.62 ± 58.60bA | 349.73 ± 15.41aA | 3507.84 ± 489.62aA | ||
| Roots | S | 12.94 ± 2.73aA | 11.29 ± 2.34aA | 15.58 ± 3.15bA | 1230.18 ± 58.02bA | 425.08 ± 15.06aA | 5968.55 ± 236.56bA | ||
| Roots | R | 13.01 ± 0.71aA | 14.96 ± 0.60aA | 6.12 ± 1.45aA | 673.54 ± 17.41aA | 367.15 ± 36.49aA | 3396.58 ± 161.08aA | ||
| TAL/SM | Leaves | C | 1.64 ± 0.74aA | 5.67 ± 1.73aA | 9.36 ± 1.10bB | 537.87 ± 8.56aA | 227.22 ± 13.48aA | 4013.80 ± 173.12aA | |
| Leaves | S | 21.09 ± 1.74bB | 15.79 ± 1.51bB | 5.24 ± 0.66aA | 903.15 ± 16.04cB | 421.91 ± 18.60cA | 8008.57 ± 100.37cA | ||
| Leaves | R | 20.73 ± 3.14bB | 6.44 ± 0.62aA | 6.19 ± 1.00aA | 636.78 ± 5.12bB | 266.83 ± 13.28bB | 5326.29 ± 162.63bB | ||
| Roots | C | 14.09 ± 2.55aA | 29.53 ± 3.62bB | 10.16 ± 2.05aA | 1154.45 ± 94.46aA | 327.59 ± 13.72aA | 5266.93 ± 181.18bB | ||
| Roots | S | 20.29 ± 3.66aA | 48.10 ± 6.20cB | 18.73 ± 3.31aA | 1925.25 ± 174.89bB | 366.01 ± 27.23aA | 7200.19 ± 368.70cB | ||
| Roots | R | 14.78 ± 0.74aA | 15.90 ± 3.99aA | 14.74 ± 4.27aB | 1038.03 ± 34.51aB | 819.79 ± 50.85bB | 3658.46 ± 173.83aA |
Conditions: control: ΨL ≤ 0.5; severe drought stress: ΨL ≥ 2.0; and 48-h rehydration. RL: Rangpur lime; SM: Sunki Maravilha mandarin; VO: Valencia orange; TAL: Tahiti acid lime. Values are averages ± standard errors (n = 5). Different uppercase letters indicate significant differences between combinations, and different lowercase letters indicate significant differences within the same combination, according to the Scott-Knott test (p < 0.05).