Table 1.
Experimental design for pot (Trial-id = P), big-bag (Trial-Id = B), and field (Trial-Id = F) trials.
| Trial-Id | Culture-Id | Location | T | n | pl | Number of lines | Start date | Flower date | End date | Water (control) | Water (drought) | SI | Thermal sum | cum VPD end |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P1 | Golm FGH | 1 | 3 | 1 | 549 | |||||||||
| B2 | 67199 | Golm FGH | 2 | 3 | 1 | 227 | 16.04.2014 | 10.06.2014 | 17.07.2014 | 54.8 | 29.2 | 0.49 | 1306 | 120.2 |
| P3 | 68015 | JKI Shelter | 2 | 1 | 2 | 195 | 15.05.2014 | 01.08.2014 | 20.9 | 9.6 | 0.56 | 1459 | 209.7 | |
| B4 | 72247 | Golm FGH | 2 | 2 | 3 | 60 | 09.04.2015 | 05.06.2015 | 19.07.2015 | 80.9 | 38.9 | 0.60 | 1489 | 194.0 |
| P5 | 72292 | JKI Shelter | 2 | 4 | 2 | 60 | 12.05.2015 | 01.07.2015 | 10.08.2015 | 22.5 | 9.9 | 0.48 | 1415 | 215.1 |
| B6 | 76240 | Golm FGH | 2 | 5 | 1 | 60 | 14.04.2016 | 06.06.2016 | 17.07.2016 | 73.9 | 40.1 | 0.54 | 1460 | 185.7 |
| P7 | 76354 | JKI Shelter | 2 | 4 | 2 | 60 | 09.05.2016 | 23.06.2016 | 11.08.2016 | 20.2 | 6.3 | 0.68 | 1624 | 195.6 |
| F1 | 67516 | Golm Field | 2 | 1 | 5 | 197 | 22.04.2014 | 30.06.2014 | 28.08.2014 | 89.4 | 65.6 | 0.08 | 1605 | 148.4 |
| F2 | 67518 | Groß Lüsewitz | 2 | 1 | 2 | 191 | 28.04.2014 | 27.08.2014 | 54.3 | 4.1 | 0.56 | 1165 | 108.6 | |
| F3 | 72275 | Golm Field | 2 | 3 | 5 | 60 | 22.04.2015 | 30.06.2015 | 17.08.2015 | 79.7 | 27.8 | 0.73 | 1488 | 171.4 |
| F4 | 72396 | Groß Lüsewitz | 2 | 2 | 6 | 60 | 28.04.2015 | 06.07.2015 | 04.09.2015 | 77.5 | 4.5 | 0.53 | 1139 | 113.3 |
| F5 | 72482 | Dethlingen | 3 | 2 | 16 | 60 | 20.04.2015 | 31.08.2015 | 78.2 | 60.5 | 0.21 | 1321 | 94.4 | |
| F6 | 76219 | Golm Field | 2 | 3 | 8 | 60 | 21.04.2016 | 20.06.2016 | 09.08.2016 | 60.0 | 19.4 | 0.65 | 1429 | 139.1 |
| F7 | 76529 | Groß Lüsewitz | 2 | 2 | 6 | 60 | 02.05.2016 | 29.06.2016 | 10.08.2016 | 62.2 | 6.8 | 0.70 | 1041 | 94.9 |
| F8 | 76528 | Dethlingen | 3 | 2 | 16 | 60 | 19.04.2016 | 01.09.2016 | 99.4 | 70.8 | 0.18 | 1412 | 103.0 |
Culture Id = experiment reference Id in the MPI-MP database limsdb2 (Köhl et al., 2008). Location: Golm polytunnel (Golm FGH) and Golm field situated in Potsdam-Golm, Germany (52°23’55’’N13°03’56’’E), sandy soil, Julius-Kühn (JKI) Shelter and field Groß Lüsewitz situated in Groß Lüsewitz, Germany (54°04’12’’N12°20’19’’E) and Dethlingen situated in Dethlingen, Germany (52°57’17’’N10°07’33’’E), both sandy loam. T= number of treatment levels: 1 optimal, 2 optimal and drought stress treatment, 3 optimal (50% field capacity), reduced irrigation (30% field capacity), and drought stress (no irrigation). n, number of replicate plots or pots per treatment; pl, number of plants per replicate. Number of lines without parent lines. Planting density 440 plants/100 m². Start date, date of planting into final pot size or field; Flower date, start of flowering in the parent cultivars; End date, date of shoot destruction; Water (control), sum of precipitation and irrigation for control treatment in liter per plant. Irrigation/precipitation volume in the field trials was converted from the area based to a plant based volume by dividing the volume per area by the planting density (4.4 plants/m²). Water (drought), sum of precipitation and irrigation for drought treatment; SI, stress index; Thermal sum in °Cdays, cum vpd end, cumulative VPD at the end of the trial in kPa.