Refinar búsqueda
Resultados 161-170 de 198
[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.
[Studies on the natural regeneration of European beech in North Rhine-Westphalia]
1987
Roehrig, E. (Goettingen Univ. (Germany, F.R.). Inst. fuer Waldbau)
[Determination of cytokinin in needles of Norway spruce (Picea abies)]
1987
Hahn, H. (Bonn Univ. (Germany, F.R.). Botanisches Inst.) | Schwartzenberg, K. von
[Studies on the development of beech forest ecosystems damaged by air pollution in North Rhine-Westphalia]
1987
Huettermann, A. (Goettingen Univ. (Germany, F.R.). Forstbotanisches Inst.) | Merg, G. | Feig, R. | Fritz, E. | Godbold, D.
[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.
[Release and characteriszation of mobile Al-species]
1987
Schmid, S. (Fraunhofer-Institut fuer Umweltchemie und Oekotoxikologie, Schmallenberg (Germany, F.R.)) | Kloeppel, H.
[Silicon as chemical indicator of the double attack of air pollutants on forests? New results of needle and soil analyses conducted during intromission-ecological forest state registration]
1987
Knabe, W. (Landesanstalt fuer Oekologie, Landschaftsentwicklung und Forstplanung des Landes Nordrhein-Westfalen, Recklinghausen (Germany, F.R.))
[Effects of eco-toxic heavy metals on young stands of European beech]
1987
Kahle, H. (Bielefeld Univ. (Germany, F.R.). Fakultaet fuer Biologie. Abt. Oekologie) | Breckle, S.W.
[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.
