Table 1.

Growth chamber settings (number of dark/light hours, relative temperatures, and humidity) for each species.

Plant species	Photoperiod (h) day/night	Temperature (°C)	Relative humidity (%)
Pinus sylvestris L.	16/8	21–26	80 (germination),
			55–70 (growth)
Picea abies L.	16/8	21–26	80 (germination),
			55–70 (growth)
Fagus sylvatica L.	16/8	21–22	70
Quercus ilex L.	16/8	21–22	70