broj: 5-6/1997
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| IZVORNI ZNANSTVENI ČLANCI | ||
| Pintarić, K. | UDK 630* 231+236.001 (Pinus nigra Arn.) | |
| The Analysis of the Structure and Quality of the Natural Black Pine Young Growth pdf HR EN | 215 | |
| Matić, S., Prpić, B. | UDK 630* 272+249:630* 652+907.001 | |
| The Programme of Tending and Maintenance, the Ecological and Social Functions of the Zagreb Park Forest pdf HR EN | 225 | |
| Bojanin, S., Krpan, A. P. B. | UDK 630* 312+379:630* 419.001 | |
| Adjustement of the Skidding Technology to Forest Protection pdf HR EN | 243 | |
| Perić, Z. | UDK 630* 165.001 (Larix decidua Mill.) | |
| Interclonal and Clonal Differences in a Seed Orchard of European Larch (Larix decidua Mill.) near Bjelovar pdf HR EN | 253 | |
| Summary: The results obtained from research carried out in the clonal seed orchard has confirmed that the properties under observation are affected by various environmental and genotype influences. For example, the weight and size of cone, seed germinability and seed weight are strongly influenced by the genotype (clone), while the yield of cones and seeds are strongly affected by the environment. Adverse edaphic conditions, such as stagnant waters, gleying of surface soils, and lack of nutrients in the soil lead to drastic reductions in cone and seed crops. This is why particular attention should be paid to the choice of location and to pedological indicators in establishing future clonal seeds orchards. Deep, well-aerated soils which are rich in nutrients should be favoured. In setting up a future clonal seed orchard, special attention should be paid to the provenance, and not only to the selection of plus-trees per phenotype within a provenance. The sex of selected plus-trees in the sense of their male or female functioning also plays an important role in the amount and quality of seed yield, that is, of raised plants. A full seed crop in a clonal seed orchard occurs every three to five years. The crop of 1992 yielded a total of 684.23 kg of fresh cones, ranging from 14.04 kg (Clone Vo-13) to 41.50 kg (Clone Vo-8) on average. The amount of 3 7.62 kg of pure seeds (without wings) were obtained from the collected cones, or 5.5 kg of seed from 100 kg of cones. Clone Vo-9 had the longest cones (40.3 mm), and clone Vo-25 the shortest (25.7 mm), while the average cone length was 32.7 mm. Clone Vo-8 yielded the widest cones (18.5 mm), and clone Vo-27 the narrowest (14.1 mm), the average width being 16.3 mm. The lenght-width ratio (LL-index) ranged from 1.77 (Clone Vo-25) to 1.41 (Clone Vo-7). The average ratio between the length and width of the cone was 2.95. The dimensions of the cones point to the fact that the clones from the orchard belong to the Alpine provenance, but of the lowland altitudinal race. The average weight of 100 fresh cones was 334.3 g, and ranged from 210.0 g (Vo-10 and Vo-13) to 527.5 g (Vo-8). The average weight of 1000 seeds was 5.3 g, ranging between 3.9 g (Vo-10) to 7.5 g (controlpopulation Varaždinbreg). The average germinating energy of the seed collected in the seed orchard was 45.6%. The highest germinating energy, amouting to 72.0%, was displayed by Clone Vo-15, and the lowest, of 18.0%, by the control population Bukovje. The average full germinating vigour was 48.4%, and ranged from 72.5% in Clone Vo-15 to 18.0% in the Bukovje population. | ||
| Jurković, M., Jurković-Bevilacqua, B. | UDK 630* 175.272:181.2.001 | |
| The Contribution to the Introduction and Acclimatization of Exotic Woody Plants - Deciduous Trees in the Parks of Zagreb pdf HR EN | 269 | |
| PREGLEDNI ČLANCI | ||
| Đurasović, P. | UDK 630* 279:232.1 | |
| The Introduction of Exotic Trees and Shrubs in the Region of Dubrovnik pdf HR EN | 277 | |
| STRUČNI ČLANCI | ||
| Nekvapil, N. | UDK 630* 628 | |
| Forest Management of the "Bastaji Forest - Krivaja - Klisa" pdf HR EN | 291 | |