خيارات البحث
النتائج 1 - 7 من 7
Nutrient response to diagnostic fertilization of Norway spruce Picea abies (L.) Karst plantations in western Quebec, Canada.
1990
Janicki W. | Jones A.R.C.
Effect of increased carbon dioxide and ozone on leaf spot pathogens of birch
2002
Syrjala, L. | Poteri, M. (Finnish Forest Research Institute, Suonenjoki (Finland). Suonenjoki Research Station)
Both CO2 and ozone increased the diseased leaf area of clone V5952 in Exp. 1 in the year 2000. The size of spots increased most under ozone fumigation, and the number of spots under ozone and CO2 + O3 fumigations. In clone K1659 all fumigation treatments decreased or had no effect on the DLA, or the number and size of the leaf spots. Also the number of fallen leaves under fumigation treatments was higher in clone V5952 than in clone K1659. Analysis of the year 2001 monitoring results is currently going on
اظهر المزيد [+] اقل [-]Airborne trichloroacetic acid and its deposition in the catchment area of the Caspian sea
1999
Weissflog, L. | Manz, M. | Popp, P. | Elansky, N. | Arabov, A. | Putz, E. | Schuurmann, G. (UFZ-Centre for Environmental Research, Department of Chemical Ecotoxicology, PF 2, 04301 Leipzig (Germany))
On the fine structure of mesophyll- and sieve cells in needles from slightly and severely damaged spruce trees (Picea abies (L.) Karst.) of the "Postturm" site Ratzeburg
1992
Schmitt, U. (Bundesforschungsanstalt fuer Forst- und Holzwirtschaft, Hamburg (Germany). Inst. fuer Holzbiologie und Holzschutz) | Kristen, U. | Ruetze, M. | Schultze, R.
Trace element accumulation in the tissues of fish from lakes with different pH values
1990
Stripp, R.A. (United States Dept. of Energy, New York, NY (USA). Environmental Measurements Lab.) | Heit, M. | Bogen, D.C. | Bidanset, J. | Trombetta, L.
Elemental patterns in roots and foliage of mature spruce across a gradient of soil aluminium
1988
Joslin, J.D. (Tennessee Valley Authority, Muscle Shoals, AL (USA). Air Quality Branch) | Kelly, J.M. | Wolfe, M.H. | Rustad, L.E.
[The use of semi-thin cutting techniques for histochemical studies on needles]
1988
Meyberg, M. (Hamburg Univ. (Germany, F.R.). Inst. fuer Allgemeine Botanik) | Kristen, U.
