• Dr. Mirko Liesebach

Provenance Research – the Backbone of Tree Improvement


Most tree species are distributed over wide ranges of land, covering different site conditions. With the adaptation to these differing sites, genetic variation evolves between populations. The knowledge about local adaptation is important to identify well performing species and also populations and provenances resistant against diseases and environmental influences.

At the Thünen-Institute for Forest Genetics we test the suitability and adaptability of numerous broadleaved and coniferous forest tree species in provenance trials. The predicted climate change gives this research a new dimension. There are large gaps in knowledge in estimating the role genetic differences play in the degree of adaptation to differing site conditions and how rapidly populations are able to adapt to them.

The investigations are connected with the legal regulations for procurement, trade, deployment, and nursing, as well as the use of forest reproductive materials.