Figure 1.

Figure 2.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

Figure 7.

Figure 8.

Figure 9.

Figure 10.

Figure 11.

Figure 12.

Figure 13.

Figure 14.

Figure 15.

Figure 16.

Figure 17.

Figure 18.

Figure 19.

Figure 20.

Figure 21.

Supplementary Figure S1.

Diameter of the flowers and the fresh weight of the plant parts_
| NaCl concentration (mM) | Petal diameter (mm) | Corona diameter (mm) | Flower fresh weight (g) | Scape fresh weight (g) | ||||
|---|---|---|---|---|---|---|---|---|
| 0 | 62.0 ± 0.5 | a | 15.4 ± 0.1 | a | 1.19 ± 0.06 | ab | 1.50 ± 0.08 | a |
| 5 | 62.2 ± 0.7 | a | 15.7 ± 0.1 | a | 1.24 ± 0.10 | ab | 1.64 ± 0.13 | a |
| 10 | 59.8 ± 0.9 | a | 15.4 ± 0.1 | a | 1.12 ± 0.02 | ab | 1.58 ± 0.08 | a |
| 15 | 61.5 ± 0.1 | a | 15.5 ± 0.2 | a | 1.20 ± 0.03 | ab | 1.69 ± 0.04 | a |
| 20 | 60.4 ± 1.7 | a | 15.3 ± 0.2 | a | 1.07 ± 0.07 | ab | 1.52 ± 0.16 | a |
| 30 | 61.4 ± 1.1 | a | 15.6 ± 0.2 | a | 1.22 ± 0.02 | ab | 1.52 ± 0.24 | a |
| 40 | 61.5 ± 1.3 | a | 15.4 ± 0.3 | a | 1.11 ± 0.00 | ab | 1.55 ± 0.00 | a |
| 50 | 62.1 ± 0.5 | a | 15.7 ± 0.3 | a | 1.20 ± 0.16 | ab | 1.45 ± 0.02 | a |
| 60 | 60.6 ± 1.2 | a | 15.6 ± 0.2 | a | 1.32 ± 0.02 | b | 1.96 ± 0.07 | a |
| 70 | 60.2 ± 0.8 | a | 15.5 ± 0.2 | a | 1.00 ± 0.03 | a | 1.39 ± 0.05 | a |
| 80 | 60.5 ± 1.0 | a | 15.5 ± 0.1 | a | 1.21 ± 0.03 | ab | 1.77 ± 0.12 | a |
| 90 | 60.6 ± 1.5 | a | 15.5 ± 0.6 | a | 1.16 ± 0.02 | ab | 1.59 ± 0.18 | a |
| 100 | 61.4 ± 1.2 | a | 15.4 ± 0.1 | a | 1.20 ± 0.06 | ab | 1.51 ± 0.05 | a |
Duration of decrease in the OVSs (hours)_
| Treatment (NaCl concentration, mM) | Duration of fall from 9 to 5 scores | Duration of fall from 5 to 0 scores | Duration of fall from 9 to 0 scores | |||
|---|---|---|---|---|---|---|
| 0 | 10.9 ± 4.2 | ab | 20.9 ± 4.8 | a | 31.7 ± 8.9 | a |
| 5 | 11.4 ± 1.8 | ab | 18.9 ± 3.1 | a | 30.4 ± 4.3 | a |
| 10 | 9.4 ± 0.6 | a | 21.2 ± 3.6 | a | 30.6 ± 3.8 | a |
| 15 | 12.1 ± 2.9 | ab | 20.1 ± 4.8 | a | 32.2 ± 7.7 | a |
| 20 | 12.5 ± 1.9 | ab | 21.4 ± 3.3 | a | 33.9 ± 2.8 | ab |
| 30 | 18.0 ± 3.7 | ab | 22.7 ± 5.6 | a | 40.7 ± 5.8 | abc |
| 40 | 23.5 ± 2.5 | bc | 35.2 ± 3.5 | a | 58.7 ± 3.7 | bc |
| 50 | 18.7 ± 1.6 | ab | 35.2 ± 3.5 | a | 53.9 ± 2.0 | abc |
| 60 | 18.0 ± 2.6 | ab | 29.2 ± 5.5 | a | 47.2 ± 5.0 | abc |
| 70 | 19.2 ± 2.0 | ab | 28.4 ± 2.5 | a | 47.7 ± 3.2 | abc |
| 80 | 15.3 ± 2.5 | ab | 38.4 ± 4.3 | a | 53.7 ± 4.5 | abc |
| 90 | 16.0 ± 1.1 | ab | 29.6 ± 4.3 | a | 45.6 ± 5.4 | abc |
| 100 | 34.1 ± 3.1 | c | 27.5 ± 2.5 | a | 61.6 ± 5.5 | c |
Treatments with basic chemical properties of the solutions_
| Treatment (NaCl concentration, mM) | NaCl (g · L-1) | Na (g · L-1) | Cl (g · L-1) | pH | EC (mS · cm-1) | Brix° |
|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | * | 0 | 0 |
| 5 | 0.277 | 0.109 | 0.168 | 5.93 | 0.67 | 0 |
| 10 | 0.554 | 0.218 | 0.336 | 5.68 | 1.05 | 0 |
| 15 | 0.832 | 0.327 | 0.505 | 5.58 | 1.50 | 0.1 |
| 20 | 1.109 | 0.436 | 0.673 | 5.51 | 2.10 | 0.1 |
| 30 | 1.663 | 0.654 | 1.009 | 5.51 | 2.90 | 0.2 |
| 40 | 2.218 | 0.873 | 1.345 | 5.47 | 3.70 | 0.2 |
| 50 | 2.772 | 1.091 | 1.682 | 5.45 | 4.30 | 0.3 |
| 60 | 3.327 | 1.309 | 2.018 | 5.43 | 5.00 | 0.4 |
| 70 | 3.881 | 1.527 | 2.354 | 5.44 | 5.60 | 0.5 |
| 80 | 4.435 | 1.744 | 2.691 | 5.45 | 6.10 | 0.5 |
| 90 | 4.990 | 1.963 | 3.027 | 5.46 | 6.60 | 0.6 |
| 100 | 5.544 | 2.181 | 3.363 | 5.44 | 7.30 | 0.7 |
Time of reaching the critical stages of flower opening and flower senesce based on OVSs (hours after the start of the experiment)_
| Treatment (NaCl concentration, mM) | Flower opening | Wilting of flowers | ||||||
|---|---|---|---|---|---|---|---|---|
| OVS = 5 | OVS = 9 | OVS = 9 | OVS = 5 | |||||
| 0 | 27.9 ± 1.9 | a | 46.1 ± 1.7 | a | 156.3 ± 7.6 | d | 167.1 ± 4.7 | d |
| 5 | 28.6 ± 0.7 | a | 45.6 ± 0.4 | a | 157.7 ± 0.3 | d | 169.1 ± 1.7 | d |
| 10 | 26.4 ± 0.8 | a | 43.9 ± 0.8 | a | 157.4 ± 0.4 | d | 166.8 ± 0.4 | d |
| 15 | 24.7 ± 2.2 | a | 45.1 ± 0.6 | a | 151.8 ± 3.7 | d | 163.9 ± 0.8 | cd |
| 20 | 27.9 ± 1.6 | a | 46.6 ± 0.7 | a | 150.1 ± 2.7 | d | 162.6 ± 0.9 | cd |
| 30 | 33.0 ± 2.8 | a | 46.0 ± 1.0 | a | 143.3 ± 3.5 | cd | 161.4 ± 1.6 | cd |
| 40 | 29.5 ± 1.1 | a | 42.6 ± 2.4 | a | 129.3 ± 4.4 | bc | 152.8 ± 2.0 | bc |
| 50 | 26.7 ± 0.6 | a | 46.2 ± 1.0 | a | 126.1 ± 2.0 | b | 144.8 ± 3.5 | ab |
| 60 | 30.6 ± 1.9 | a | 46.8 ± 0.9 | a | 128.8 ± 1.4 | bc | 146.8 ± 3.7 | ab |
| 70 | 27.5 ± 1.8 | a | 47.5 ± 1.1 | a | 124.3 ± 0.9 | b | 143.6 ± 2.4 | ab |
| 80 | 25.1 ± 0.4 | a | 44.5 ± 1.0 | a | 122.3 ± 0.6 | b | 137.6 ± 2.2 | a |
| 90 | 28.6 ± 1.9 | a | 42.6 ± 2.5 | a | 122.4 ± 1.8 | b | 138.4 ± 2.7 | a |
| 100 | 24.9 ± 3.6 | a | 48.4 ± 2.2 | a | 102.4 ± 2.1 | a | 136.5 ± 1.5 | a |
| Formula and R2 of regression function | y = -0.495 | y = -0.358 x + 168.88 | ||||||
Flower opening status categories and scores used to calculate the ornamental value (based on Jezdinská Slezák et al_, 2022)_
| Phenological stage | Ornamental value (score) | |
|---|---|---|
| Bud | WB: white bud, upright | 4 |
| Opening flower | OF1: 1 horizontal tepal | 5 |
| OF2: 2 horizontal tepals | 5 | |
| OF3: 3 horizontal tepals | 6 | |
| OF4: 4 horizontal tepals | 6 | |
| OF5: 5 horizontal tepals | 7 | |
| OF6h: all tepals are half-opened (the centre of the corona is visible) | 7 | |
| Open flower | FO: tepals are in a plane | 10 |
| FOhb: tepals are standing half-backwards (45>) | 9 | |
| FOb: tepals are standing backwards (45<) | 8 | |
| Senescent flower | AF0: the tips of the tepals become membranous, but keep their turgor | 8 |
| AF1: all tepals become membranous, but keep their turgor | 6 | |
| AF2: the tepals start to gather, the corona still keeps its colour and turgor | 1 | |
| AF3: the tepals are shrivelled (complete wilting) | 0 |