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S. Orlić: MEĐUNARODNI POKUS PROVENIJENCIJA SITKANSKK SMREKE (Picea sitchensis (Bong.) Carr. ) Šumarski list br. 5 -6, CXX11 (1998), 213-220 4. PREDHODNI ZAKLJUČCI Preliminary conclusions Rezultati posljednje izmjere (15 godina od osnivaBrinnon i 3006 Shelton) s nižih nadmorskih visinja pokusa) u međunarodnom pokusu provenijencija na, a među najlošijima su provenijencije iz positkanske smreke u sjeverozapadnoj Hrvatskoj, šumaridručja sjevernog (Britanska Columbija) i južnog ja Varaždin, ukazuju na sljedeće predhodne zaključke: (sjeverna Californija) prirodnog areala sitkanske smreke. Provedena analiza varijance i F test pokazali su da utvrđene razlike u pogledu visinskog i de-Ocjena kvalitete stabala s obzirom na pravnost bljinskog rasta medu provenijencijama nisu bile debala, granatost, vitalnost, i produkciju pokazasignifikantne (Tablica 2). la je da niti jedna provenijencija nije bez nega tivnih bodova (0), a najlošije imaju sedam nega Provenijencije s najintenzivnijim rastom i priras tivnih bodova (-7), tablica 4. tom su one iz savezne države Washington (3005 LITERATURA - References Herve Van De Sype, 1995.: A Sitka Spruce Pro( Bong.) Carr.), Radovi br. 80, str. 231-243, Šuvenances in Peyrat 1.3181.1 A, Fild resultsat age marski institut, Jastrebarsko. 18, Joint Meeting of the IUFRO Working Parties Pintarić,K.,Mekić,F., 1984.: The Growth in HeiS2.02.05, 06, 012 and 14, Limoges, Francuska. ght and Diameter of Sitka Spruce (Picea sitchenSoren Fl. Madesen , 1984.: IUFRO Sitka Spruce sis) of Different Provenances, IUFRO Interna Ten provenance Experiment, IUFRO International Sitka Spruce Provenance Experiment, tional Sitka Spruce Provenances Experiment, Edinburg. Edinburg. Lines , R., Samuel , C.J.A., 1984.: The Main IUFRO Experiments with Sitka Spruce in Britain. Ten Dokus , A., 1984.: IUFRO Sitka Spruce Provenance Years Results, IUFRO International Sitka Spru Experiment in Croatia, Yugoslavia: 9-Year He ce Provenances Experiment, Edinburg. ight and Survival, IUFRO International Sitka Dokuš,A.;Gračan, J., 1978.: IUFRO Sitka spruce Spruce Provenance Experiment, Edinburg. international ten-provenance experiment in YuOrlić , S.; Ocvirek , ML, 1989.: Pokus IUFRO progoslavia, Proceeding of the IUFRO joint mevenijencija sitkanske smreke (Picea sitchensis eting of working parties, Vancuver, Canada. SUMMARY: In 1972 the Jastrebarsko Forestry Research Institute joined in the international project (IUFRO) for studying the provenances of Sitka Spruce (Picea sitchensis) in Europe. Seed samples were obtained with the help of the Seed Husbandry Centre Humlbek, Denmark, which organise the procurement and distribution of seeds for the majority of European countries. The research programme includes 14 provenances of Sitka Spruce from the USA and Canada (Table I). Seed samples were sown in the Spring of 1974. Saplings 2+0 years old were transplanted into seedbeds in the Spring of 1976, where they were cultivated for the following two years. In the Autumn of 1977 seedlings 2+2 years old were transferred to a field experiment. The experiment was established in the region of the Varaždin Forest District, G.j. Vinica-Plitvica, Compartment 25. It is a region with a humid climate, soil is dystric cambisol on gravel, height above sea-level approximately 240 m, eastern exposition. With regard to vegetation it is a region with forests of Sessile Flowered Oak and Common Hornbeam (Querco carpinetum croaticum Horv.L The experiment was established in a randomised block design with four replications, spacing between plants 2x2m. From each provenance 676plants were planted (13x13 rows x 4 replications). Results of measuring in the 5th and 10th years after establishment of the experiment have been published (Orlić, Ocvirek, 1990). This paper presents the results of the last measuring, i.e. in the 18th year after establishment of the experiment. |