Table 5.
Visual plant color quality values of safflower during the experiment under different irrigation regimes in 2017–2018 and 2018–2019 growing seasons.
| Irrigation regimes | Visual color |
quality values |
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cultivar type | Initial (before stress) |
April |
May |
June |
July |
Mean Seasonal |
||||||||
| 2017–18 | 2018–19 | 2017–18 | 2018–19 | 2017–18 | 2018–19 | 2017–18 | 2018–19 | 2017–18 | 2018–19 | 2017–18 | 2018–19 | |||
| Well-watered | Goldasht | 8 | 8 | 7 | 7 | 6 | 6 | 5 | 5 | 6 | 6 | 6.4 | 6.4 | |
| Local Isfahan | 8 | 8 | 6 | 6 | 5 | 5 | 4 | 4 | 3 | 3 | 5.2 | 5.2 | ||
| Mild water stress | Goldasht | 8 | 8 | 7 | 6 | 6 | 5 | 4 | 4 | 6 | 5 | 6.2 | 5.6 | |
| Local Isfahan | 8 | 8 | 5 | 5 | 4 | 3 | 3 | 3 | 3 | 2 | 4.6 | 4.2 | ||
| Severe water stress | Goldasht | 8 | 8 | 5 | 5 | 4 | 3 | 3 | 3 | 3 | 2 | 4.6 | 4.4 | |
| Local Isfahan | 8 | 8 | 4 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 4.0 | 3.6 | ||
| Most severe water stress | Goldasht | 8 | 8 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 3.6 | 3.4 | |
| Local Isfahan | 8 | 8 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 3.2 | 3.0 | ||
| Unirrigated | Goldasht | 8 | 8 | 4 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 3.0 | 2.6 | |
| Local Isfahan | 8 | 8 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2.8 | 2.4 | ||