Comparison of some exotic species of Abies genus with chosen silver fir provenances on the plots of town Písek.
Results are presented of the evaluation of three research plots no. 64, 65, 66 situated in the localities of the town Písek, Czech Republic. The plots evaluated at the age of 24 years were established in the sets of beech-oak stands and oak-beech stands and were planted out by 27 experimental variants of 9 taxonomical units. Of the exotic firs, only grand fir (Abies grandis) showed to be perspective for the Czech forestry. This species, although characteristic by rather high mortality in the first years after planting, grows very quickly, showed good volume production and relatively satisfying health state of survived individuals. Also, white fir (A. alba) and balsam fir (A. balsamea) were growing relatively good at this age but these species were generally known to be short-lived; balsam fir was characteristic by low volume production. Other species like A. cilicica, A. pinsapo, were unusable due to their high mortality and slow growth of survived individuals. Disputable was also the use of A. cephalonica and A. borisii-regis the importance of which can be in the field of breeding, especially in hybridization processes.