A new prechilling method for true fir seeds
Seeds of grand, sub-alpine and Pacific silver firs were prechilled, their moisture contents adjusted to four levels, then stored at 2°C. Non-dried seeds (45% moisture) could be stored only for 3 months before germination began. Seed quality deteriorated when seeds were stored at 45% for more than 6 months. Seeds air-dried to 35% moisture stored well for 6 months but germination began in storage after 9 months. Airdrying to 25% enabled prechilled seeds to be stored for 12 months without any significant reduction in germination. At both 35% and 25%, the effect of pre-chilling in increasing germination rate was retained. Although they did not deteriorate in storage, seeds oven-dried to 15% did not retain the prechilling effect.
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| Publication | Forest Nursery Proceedings |
|---|---|
| Event | Boise, ID - 1980 |
| Author | D.G.W. Edwards |
| Published | 1981/03/01 |
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