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Résultats 1-10 de 14
[Effects of pollutant gas compounds on overground plant organs of Norway spruce, silver fir, Scots pine and European beech]
1987
Arndt, U. | Guderian, R.
[Nutrient supply of middle European commercial forests]
1987
Zoettl, H.W. (Goettingen Univ. (Germany, F.R.). Inst. fuer Bodenkunde und Waldernaehrung)
[Investigations on nutrition state of beech [Fagus sylvatica L.] and spruce [Picea abies Karst.] and nutrient content on fixed sample plots in Switzerland]
1987
Flueckiger, W. (Institut fuer Angewandte Pflanzenphysiologie, Schoenenbuch (Switzerland))
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.
[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.))
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)
[Present state of knowledge - gained by deposit measurements - on the question of stress on forest ecosystems - caused by air pollutant input in North Rhine-Westphalia]
1987
Gehrmann, J. (Landesanstalt fuer Oekologie, Landschaftsentwicklung und Forstplanung | Recklinghausen (Germany, F.R.))
[Small RNAs [ribonucleic acid] of damaged and healthy forest trees]
1987
Riesner, D. (Duesseldorf Univ. (Germany, F.R.). Inst. fuer Physikalische Biologie) | Koester, S. | Beuther, E. | Loss, P.
[Experiments on the vitalization and revival of diseased Norway spruce stands by inoculation of mycorrhizae]
1987
Lelley, J. (Versuchsanstalt fuer Pilzbau, Krefeld (Germany, F.R.)) | Wuestenhoefer, B. | Boeckem, H.
[Approach on the measurement- and experiment station in the forest (MEXFO) and presentation of first results]
1987
Thiele, V. (Landesanstalt fuer Immissionsschutz des Landes Nordrhein-Westfalen (LIS), Essen (Germany, F.R.)) | Specovius, J. | Metzger, F.
