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Outi Muona (email), Raimo Hiltunen, Erkki Morén, D. V. Shaw

Analysis of monoterpene variation in natural stands and plustrees of Pinus sylvestris in Finland.

Muona O., Hiltunen R., Morén E., Shaw D. V. (1986). Analysis of monoterpene variation in natural stands and plustrees of Pinus sylvestris in Finland. Silva Fennica vol. 20 no. 1 article id 5256. https://doi.org/10.14214/sf.a15435

Abstract

Variation of monoterpene composition of Pinus sylvestris L. was studied in Southern, Central and Northern Finland using data from both natural stands and plus trees. The natural stands were analysed using different techniques and for fewer terpenes than the plus trees.

There were large differences between areas in the proportion of 3-carene in trees from natural stands, as has been discussed by previous authors. The proportion of 3-carene is bimodally distributed and believed to be controlled by a single gene with large effect. For this reason, we stratified our samples into high carene (>10%) and low carene (<10%) groups. Univariate analysis did not reveal any additional differences between natural populations in different zones for components other than 3-carene. In plus trees, several components showed significant differences, but the proportion of 3-carene did not differ between areas. Multivariate discrimination analysis did not distinguish between areas for natural stands. However, for the plus trees discriminant analysis allowed us to discriminate between the zones relatively efficiently. The proportion of correct classification was greater than 64% using the best methods. The central zone was most distinct, and 80% of its trees were correctly classified. Broad generalizations are not possible due to the limitations imposed by our data. Our analysis of phenotypic variation does not support the suggestion that plus trees selected from the north represent a southern type.

The PDF includes an abstract in Finnish.

Original keywords
mänty; alkuperä; pluspuut; monoterpeenit; luonnonpopulaatiot

English keywords
Scots pine; progeny; plus trees; monoterpenes; geographical variation

Published in 1986

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Available at https://doi.org/10.14214/sf.a15435 | Download PDF

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