Abstract
The growth ofQuercus serrataseedlings were investigated grown under several controlled temperature conditions of outdoor temperatures altered by-1.5°C, ±0.0°C, +1.5°C, +3.0°C, and +4.5°C. As a result, elongation period were earlier under warmer condition. Tree height, number of leaves, diameter of the main shoot and total dry weight were larger under +3.0°C, +4.5°C treatments. Many seedlings under +3.0°C, +4.5°C treatments didn't shed leaves. Cell length of the main shoot were larger under warmer condition. Advance of autumnal leaves under warmer condition was overdue. SPAD value and photosynthetic rate decreased under +4.5°C treatment. There seemed that tree height, number of leaves, diameter of the main shoot, dry weight, cell length, advance of the autumnal leaves, shed leaves period, SPAD value and photosynthetic rate ofQuercus serrataseedlings should change under warmer condition.
