Affiner votre recherche
Résultats 41-50 de 106
[Studies on the cytoxicity of atmogene organic substances of the site "Postturm"]
1988
Meyberg, M. (Hamburg Univ. (Germany, F.R.). Inst. fuer Allgemeine Botanik) | Kappler, R. | Kristen, U.
[The influence of the element concentrations of the soil solution on the element content of healthy and diseased Norway spruce of the site "Postturm"]
1988
Rademacher, P. | Bauch, J. | Michaelis, W.
[Anatomical studies on the wood of healthy and diseased Norway spruce trees from a forest damage area, forest district Farchau/Ratzeburg]
1988
Goettsche-Kuehn, H. (Bundesforschungsanstalt fuer Forst-und Holzwirtschaft, Hamburg (Germany, F.R.)) | Bauch, J. | Feuerstack, M.
[Studies on the daily periodicity of intercellular concentration of ethylene in Norway spruce shoots]
1988
Schulte-Baukloh, C. (Hamburg Univ. (Germany, F.R.). Inst. fuer Allgemeine Botanik) | Fenner, R. | Ludewig, M. | Naumann, R. | Lalk, I. | Bigdon, M. | Doerffling, K.
[Soil and fine root inventory on the experimental plots of the site "Postturm" forest district Farchau/Ratzeburg]
1988
Murach, D. (Goettingen Univ. (Germany, F.R.). Inst. fuer Waldbau) | Rapp, C. | Ulrich, B.
Ribulose-1,5-bisphosphate carboxylase and glutamine synthetase activity levels in mature Norway spruce (Picea abies) as depending on needle age and air pollution induced impairment of the trees
1987
Weidner, M. (Koeln Univ. (Germany, F.R.). Botanisches Inst.) | Engel, B. | Kraus, M.
[The role of the State Institute for Protection against Air Pollution of North Rhine-Westphalia in the clarification of the causes of new types of forest dieback]
1987
Stratmann, H. (Landesanstalt fuer Immissionsschutz des Landes Nordrhein-Westfalen, Essen (Germany, F.R.))
[On the effects of ozone on the formation of nitrate in needles and leaves of Picea abies (L.) Karst., Fagus sylvatica (L.) and Quercus robur (L.)]
1987
Krause, G.H.M. (Landesanstalt fuer Immissionsschutz des Landes NordrheinWestfalen (LIS), Essen (Germany, F.R.))
[Studies on the mycological aspects of forest damages with special regard to the mycorrhizae]
1987
Lelley, J. (Versuchsanstalt fuer Pilzanbau, Krefeld (Germany, F.R.)) | Schmitz, D. | Rieth, C. | Willenborg, A.
Investigations on nematode populations in forest decline affected ecosystems with particular reference to genera with plant parasitic and virus vector characteristics
1987
Sikora, R.A. (Bonn Univ. (Germany, F.R.). Inst. fuer Pflanzenkrankheiten)