Growth and quality of transfered Scots pine (Pinus sylvestris L.) provenances in Latvia
2008
Jansons, A., Latvian State Forestry Research Inst. Silava, Salaspils (Latvia) | Baumanis, I., Latvian State Forestry Research Inst. Silava, Salaspils (Latvia)
A provenance trial of at age of 28-year-old Scots pine has been analyzed. In three experimental places in Latvia provenances from Germany, Poland, Russia, Byelorussia, Ukraine, and Latvia were tested. German and Polish provenances showed a significantly larger average yield compared to Latvian provenances (17% and 19% respectively). The introduced pines had significantly thicker branches (German provenances – 9%, Polish – 6%) and crooked stems (German provenances – 35%, Polish – 12%) compared to the local material. Latvian pine provenances exhibited good growth and stem quality characteristics and also survival was higher than that of foreign provenances. The research suggests that use of foreign Scots pine plant material in Latvia is not advisable. Further testing of pine provenances from areas close to Latvia (Estonia, Lithuania, and neighbouring areas in Russia) is recommended.
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