Der Fichtenherkunftsversuch in Bischofsreut/Bayer. Wald nach 32 jähriger Wuchszeit

Summary

The paper deals with results of the survey 1968. The trial was initiated in the year 1936 with autochthonous provenances of different elevations and regions of pre-war Germany to give information on growth, production of valuable timber and resistance to the manifold dangers in the region of experiment. A comparison is made with the parallel experimental areas in Thuringia, Saxonia and Wuerttemberg. In Bischofsreut an interdependence between the type of flushing or elevation of mother stand and growth, and a superiority of the late flushing provenances in the rough climate of the experimental area could not be traced. Provenances of the two highest elevated stands were slow growing, thus indicating that growth is slower, the nearer the mother stand is situated at the respective limit of tree growth.

Damages by snow breaks varied among the different provenances. With regard to the number of trees per unit area provenances of highlands suffered least. Stem rot rising from the roots was not found and is not to be expected in the near future.