1. What is the optimum temperature range for seedling growth during the growing season?

A) 0-10°C
B) 10-25°C
C) 25-35°C

2. what can cause temperatures below 0°c in spring and autumn?

A) Accelerated seedling growth
B) Frost damage
C) Improved drought resistance of plants

3. how many days should a minimum favourable growing season last for a forest nursery?

A) 100-120 days
B) 180-200 days
C) 220-250 days

4. what can happen if the growing season is less than 150 days?

A) Seedling development is restricted
B) Seedlings grow faster
C) Seedlings become more drought resistant

5. what should be the optimum annual rainfall for a forest nursery?

A) 300-500 mm
B) 600-800 mm
C) 900-1200 mm

6. What can be used in water-scarce areas to provide optimum conditions for seedlings?

A) Rain showers
B) Supplementary fertilisation
C) Substrate heating

7. what is the optimum relative humidity for a forest nursery?

A) 30-50%
B) 60-80%
C) 90-100%

8 Why should nurseries be located in areas sheltered from strong winds?

A) To improve air circulation
B) To reduce the risk of damage to seedlings
C) To increase solar exposure

9. which soils should have an optimum groundwater level at a depth of 100-120 cm?

A) Heavy
B) Sandy
C) Gravelly

10. which water conditions are unfavourable for the location of a forest nursery?

A) Even rainfall throughout the year
B) Stagnant water
C) Groundwater level at a depth of 150-200 cm