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Anneli Viherä-Aarnio (email), Pirkko Velling

Micropropagated silver birches (Betula pendula) in the field – performance and clonal differences

Viherä-Aarnio A., Velling P. (2001). Micropropagated silver birches (Betula pendula) in the field – performance and clonal differences. Silva Fennica vol. 35 no. 4 article id 576. https://doi.org/10.14214/sf.576

Abstract

Micropropagated and seed-born silver birches (Betula pendula Roth) were compared for survival, height growth and occurrence of biotic damage (voles, hares, mooses, stem lesions and cankers) in field trials in southern Finland. The material consisted of 11 clones and 10 different lots of seedlings growing in 10 field trials, established in clear-cut forest cultivation areas. The plants were 6–7 years old. The micropropagated and seed-born material types did not significantly differ from each other as regards survival, height growth and frequencies of damage caused by biotic agents. Large and significant differences were, however, detected in survival, height and frequencies of all types of biotic damage between single clones. Careful selection and testing of birch clones in field conditions is recommended before wide-scale commercial micropropagation and practical forest cultivation takes place.

Keywords
Betula pendula Roth; micropropagation; clone; clonal variation; field testing; herbivory

Author Info
  • Viherä-Aarnio, Finnish Forest Research Institute, Vantaa Research Centre, P.O. Box. 18, FIN-01301 Vantaa, Finland ORCID ID:E-mail anneli.vihera-aarnio@metla.fi (email)
  • Velling, Finnish Forest Research Institute, Vantaa Research Centre, P.O. Box. 18, FIN-01301 Vantaa, Finland ORCID ID:

Received 24 April 2001 Accepted 21 November 2001 Published 31 December 2001

Available at https://doi.org/10.14214/sf.576 | Download PDF

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