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Abstract
Seeds are the principal means of regeneration of most woody plants. They serve as the delivery system for the transfer of genetic materials from one generation to the next. The part of a tree’s life cycle that involves seed formation, maturation, dissemination, and germination is a complex—yet fascinating—chain of events, many of which are still poorly understood. Yet some knowledge of these events is necessary for successful collection and utilization of seeds to produce the means for artificial regeneration. This chapter presents basic information on the biology of seeds and how this knowledge can be used in collecting, conditioning, storing, and sowing seeds.
Citation
Harrington, Constance A.; Brodie, Leslie C.; DeBell, Dean S.; Schopmeyer, C.S. 2008. Alnus P. Mill. alder. In: Bonner, Franklin T.; Karrfalt, Robert P., eds. The woody plant seed manual. Agriculture Handbook No. 727, Washington, D.C. U.S. Department of Agriculture, Forest Service. 232-242.