Table 1.
Monthly mean minimum and maximum temperatures and photoperiod for the first (2012/13) and second (2013/14) growing seasons, and the averaged temperatures for the six previous years of the experiment (from 2007 to 2012)
| Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | ||
|---|---|---|---|---|---|---|---|---|---|---|
| Minimum temperature (ºC) | 2012/13 | 3.5 | –0.5 | –0.8 | –0.4 | 4.1 | 5.5 | 7.6 | 11.7 | 15.1 |
| 2013/14 | 1.0 | –0.8 | 2.6 | 1.7 | 3.3 | 8.6 | 9.0 | 14.0 | 15.5 | |
| 2007–2012 | 2.9 | 0.1 | 0.0 | 0.2 | 2.7 | 6.5 | 10.4 | 13.7 | 16.0 | |
| Maximum temperature (ºC) | 2012/13 | 11.8 | 10.7 | 9.9 | 11.8 | 15.8 | 18.8 | 20.4 | 26.9 | 33.8 |
| 2013/14 | 10.8 | 7.4 | 11.7 | 12.9 | 17.7 | 22.5 | 24.4 | 29.8 | 30.4 | |
| 2007–2012 | 14.1 | 9.6 | 8.8 | 12.9 | 16.7 | 19.8 | 24.8 | 28.7 | 31.2 | |
| Photoperiod (h) | 2012/13 | 9.3 | 9.1 | 9.4 | 10.4 | 11.7 | 13.1 | 14.3 | 14.9 | 14.6 |
| 2013/14 | 9.5 | 9.1 | 9.4 | 10.4 | 11.7 | 13.1 | 14.3 | 14.9 | 14.6 |