Adaptation of Progenies of a Norway Spruce Provenance Test (IUFRO 1964/68) to Local Environment

Ujvári Jármay, Éva and Ujvári, Ferenc (2006) Adaptation of Progenies of a Norway Spruce Provenance Test (IUFRO 1964/68) to Local Environment. ACTA SILVATICA ET LIGNARIA HUNGARICA, 2 (1). pp. 47-55. ISSN 1786-691X

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Abstract

Adaptability of open pollinated offspring of different Norway spruce provenances has been studied in a progeny test. 38 superior and 10 inferior mother trees were selected in the Inventory Provenance Test with Norway Spruce (IUFRO 1964/68). The mother trees originated from different European regions from different geographical distances. Local sources were introduced as controls both in the provenance test and in the progeny test. Survival and height growth of 13 years old half-sib families were used for assessing the adaptability. Survival of families has shown small differences, the average amounted to 91 %. The family mean heights were more equalized than expected but significant differences could be shown among the families. Offspring of the superior mother trees performed well, most of them exceed the local control. The offspring of inferior mother trees showed reduced growth. A highly significant correlation (P = 1 %) was found between the height of mother trees and mean height of their progenies. Correlation between provenance mean of mother trees and the family mean was also significant.

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