خيارات البحث
النتائج 1 - 10 من 25
Effect of heavy metals and mineral nutrients on forest litter respiration rate
1994
Laskowski, R. | Maryanski, M. | Niklinska, M. (Department of Ecosystem Studies, Institute of Environmental Biology, Jagiellonian University, Ingardena 6, PL-30-060 Cracow (Poland))
Effects of sulphur dioxide (SO2) on growth and flowering of SO2-tolerant and non-tolerant genotypes of Phleum pratense
1994
Clapperton, M.J. | Reid, D.M. (Department of Biological Sciences, Plant Physiology Research Group, University of Calgary, 2500 University Drive N.W., Calgary, Alta. T2N 1N4 (Canada))
Effects of ozone on managed pasture: II. Yield, species composition, canopy structure, and forage quality
1994
Fuhrer, J. | Shariat-Madari, H. | Perler, R. | Tschannen, W. | Grub, A. (Swiss Federal Research Station for Agricultural Chemistry and Environmental Hygiene, CH-3097 Liebefeld-Bern (Switzerland))
Influence of the atmospheric conductivity on the ozone exposure of plants under ambient conditions: considerations for establishing ozone standards to protect vegetation
1994
Grunhage, L. | Jager, H.J. (Institute for Plant Ecology, Justus-Liebig-University, D-35392 Giessen, Heinrich-Buff-Ring 38 (Germany))
Relative sensitivity of greenhouse pot plants to long-term exposures of NO- and NO2-containing air
1994
Saxe, H. (Department of Terrestrial Ecology, National Environmental Research Institute, Vejlsovej 25, 8600 Silkeborg (Denmark))
Response of a grassland ecosystem to air pollutants: -II The chemical climate: Fluxes of sedimenting airborne matter
1994
Daemmgen, U. | Gruenhage, L. | Kuesters, A. | Jaeger, H.J. (Federal Agricultural Research Centre Braunschweig-Voelkenrode, Agricultural Institute for Climate Research, Muencheberg (Germany))
Ambient ozone and crop loss: establishing a cause-effect relationship
1994
Krupa, S.V. | Nosal, M. | Legge, A.H. (Department of Plant Pathology, University of Minnesota, St. Paul, MN 55108 (USA))
Effects of long-term ozone fumigations on growth and gas exchange of Fraser fir seedlings
1994
Seiler, J.R. | Tyszko, P.B. | Chevone, B.I. (Department of Forestry, Virginia Tech, Blacksburg, Virginia 24061 (USA))
Plant responses to atmospheric Co2 enrichment with emphasis on roots and the rhizosphere
1994
Rogers, H.H. | Runion, G.B. | Krupa, S.V. (National Soil Dynamics Laboratory, ARS-USDA, Auburn, AL 36831 (USA))
The effects of SO2 fumigation on the nitrogen metabolism of aseptically grown spruce seedlings
1994
Peuke, A.D. | Tischner, R. (Institut fur Pflanzenphysiologie und botanischer Garten, University of Gottingen, Untere Karspule 2, D-37073 Gottingen (Germany))