PT Journal AU FULIN, M NOVOTNY, P PODRAZSKY, V BERAN, F DOSTAL, J JEHLICKA, J TI Evaluation of the provenance plot "Hruba Skala" (Northern Bohemia) with grand fir at the age of 36 years SO Journal of Forest Science PY 2017 BP 75 EP 87 VL 63 IS 2 DI 10.17221/79/2016-JFS DE Abies grandis; growth; qualitative traits; quantitative traits; IUFRO AB The article aims to evaluate the research provenance plot established in 1980 in locality No. 214 - Hruba Skala (in the north of the Czech Republic), where nine provenances of grand fir (Abies grandis (Douglas ex D. Don) Lindley) provided in the framework of the International Union of Forest Research Organizations project, and one provenance of grand fir, Norway spruce, silver fir and Douglas-fir from a standard commercial source are tested. We present the results of tree height, stem DBH, stem volume production and health status after 36 years. The results correspond with similar experiments in the Czech Republic and abroad and suggest that grand fir provenances from Vancouver Island (British Columbia, Canada) and the Washington (USA) State coastal region show the best production features, while the Oregon Cascades, Idaho and Montana provenances grow more slowly. Comparison with other tree species indicates that the production of grand fir at the investigated age exceeds the production of both Norway spruce and silver fir, and equalizes or gently exceeds even Douglas-fir. ER