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U. Bergsten | 1985Cones from a young (24-28 yr) and an old (120-280 yr) stand in N. Sweden were compared in the laboratory. Number of cones/ha was 71 000 (4.3 kg of filled seed) in the old stand and 29 000 (2.1 kg) in the young stands. Cones in the young stand we[...]
thèse/mémoire
U. Bergsten, Auteur ; Swedish University of Agricultural Sciences, Umea (SWE). Department of silviculture, Auteur | 1987
thèse/mémoire
rapport
U. Bergsten ; M. Nygren ; O. Skre ; SWEDISH UNIVERSITY OF AGRICULTURAL SCIENCES UMEA SWE DEPARTMENT OF SIL ; UNIVERSITY OF HELSINKI HELSINKI FIN ; NORVEGIAN INSTITUTE FOR FOREST RESEARCH BERGEN NOR | 1992The objective of this joint Nordic project was to increase the knowledge of the factors affecting seed development, growth and maturity of Scots pine and thus be able to give recommendations about how to 1) determine the actual seed status in te[...]
