Canadian Forest Service Publications
Soaking, moist-chilling, and temperature effects on germination of Acer pensylvanicum seeds. 2004. Bourgoin, A.; Simpson, J.D. Canadian Journal of Forest Research 34: 2181-2185.
Issued by: Atlantic Forestry Centre
Catalog ID: 25109
Availability: Order paper copy (free)
The effect on germination of soaking duration, moist-chilling time, and termpature was evaluated using five seed lots of Acer pensylvaticum L. Seeds were soaked for 0, 48, 72, or 96 h, then moist chilled at 4 C for 16, 24, or 32 weeks. Two temperature regimes were used for germination: (i) 16 h dark at 5 C:8 h light at 15 C (5:15 C) and (ii) 16 h dark at 20 C:8 h light at 30 C (20:30 C). Soaking and chilling seeds significantly increased germination. Germination was highest at 5:15 C, but the germination speed was slow. Germination at 20:30 C was lower, but 94-98% of ungerminated seeds appeared to be viable, suggesting that they were dormant. Overall results showed that soaking seeds for 48 h, moist chilling for 16 weeks, and germinating at 5:15 C produced an average germination of 92%.