Genetic variation among and within populations of four Swedish hardwood species assessed in a nursery trial

Four broadleaved tree species, Acer platanoides, Alnus glutinosa, Fagus sylvatica, and Fraxinus excelsior which vary with respect to pollen vectors or succession stage, were studied in a nursery trial in Uppsala, latitude 59 degrees 50', 12 m asl, at ages 2 to 5. Growth rhythm, growth capacity...

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Bibliographic Details
Published inSilvae genetica Vol. 48; no. 1
Main Authors Baliuckas, V, Ekberg, I, Eriksson, G, Norell, L
Format Journal Article
LanguageEnglish
Published 1999
Subjects
ACER PLATANOIDES
ALNUS GLUTINOSA
CRECIMIENTO
CROISSANCE
FAGUS SYLVATICA
FRAXINUS
GENETIC VARIATION
GROWTH
PERIODICIDAD
PERIODICITE
PERIODICITY
SUECIA
SUEDE
SWEDEN
VARIACION GENETICA
VARIATION GENETIQUE
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Summary:Four broadleaved tree species, Acer platanoides, Alnus glutinosa, Fagus sylvatica, and Fraxinus excelsior which vary with respect to pollen vectors or succession stage, were studied in a nursery trial in Uppsala, latitude 59 degrees 50', 12 m asl, at ages 2 to 5. Growth rhythm, growth capacity and damage were assessed in 3 to 7 autochthonous Swedish populations. Generally the family variance components were estimated with higher precision than the population components. There was a considerable variation in bud flushing both at the population and within- population level except for Fagus sylvatica with no variation at the population level. The family variance components for bud flushing were on average larger for Acer platanoides than for the other species. For budset in Acer platanoides (age 2 to 3) and Fagus sylvatica (age 3) the family variance components were mostly low. For all species the population variance components for plant height were significant. Except for Alnus glutinosa there is a trend that the family variance components for height decrease with age. On average the highest family components were obtained for Fraxinus excelsior: Mostly there was limited variation in damage among populations and families. The family mean correlations of the same trait studied different years were significant and positive except for budset in Acer platanoides. Correlations between pairs of traits and with meteorological variables were in many cases significant but the correlations never explained more than 50% of the variation. The comparatively large family variance components in Fraxinus excelsior and Acer platanoides were attributed to non-random mating in their populations.
Bibliography:1999T30130
F30
ISSN:0037-5349
2509-8934