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- Title
Effects of Length of Storage, and Stratification on Germination of Whitebark Pine Seeds.
- Authors
Bower, Andrew D.; Kolotelo, Dave; Aitken, Sally N.
- Abstract
The effects of length of storage and stratification on germination of whitebark pine (Pinus albicaulis Engeim.) seeds were determined for 180 open-pollinated families from throughout most of the species range. Seeds come from four geographic regions and were stored from 0 to 10 years at one of four storage facilities. Seeds received a standard 1 month of worm moist treatment and 2 months of cold stratification treatment and germination regime, and germination capacity was determined for 100 viable seeds per family. A subset of families received on additional 6 months of cold stratification. Mean germination was 13.4% after 2 months of cold stratification and 76.6% after an additional 6 months of cold stratification, with a wide range among seedlots for both assessments. The length of storage did not affect germination significantly in the first test, but it was associated with a decline in the second test. Germination capacity of up to 80% was achieved with seeds that hod been in storage for 10 years. High viability of stored seeds indicate that ex situ seed storage should provide a viable means of conserving genetic resources; however, we recommend that standard protocols for germination of whitebark pine seeds be modified by extending the cold stratification period.
- Subjects
WHITEBARK pine; GERMINATION; SEED stratification; STORAGE; PLANTS
- Publication
Western Journal of Applied Forestry, 2011, Vol 26, Issue 1, p24
- ISSN
0885-6095
- Publication type
Article
- DOI
10.1093/wjaf/26.1.24