Successive bulk propagation of juvenile plants from full-sib families of Norway spruce |
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| Authors: | Øystein Johnsen |
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| Institution: | Division of Forest Genetics and Tree Breeding, Norwegian Forest Research Institute, Box 61, 1432 As-NLH Norway |
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| Abstract: | The results of bulk propagation of Norway spruce for one year are presented. The number of cuttings produced per seedling ranged from 21 to 38 between different families, with a large within-family variation. No clear relationship between family field performance and production of cuttings could be seen. Established cuttings produced more propagules per plant than seedlings in the first propagation. Misting gave about 92% rooting, with no significant differences between different rooting media used. A bulk propagation programme is proposed with a potential production of about 1000–1500 plants per germinated seed within 3 years of sowing. |
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