خيارات البحث
النتائج 1 - 10 من 75
Global climatic changes: modelling the potential responses of agro-ecosystems with special reference to crop protection.
1995
Goudriaan J. | Zadoks J.C.
Effects of sulfur dioxide on growth, photosynthesis and enzyme activities of Chinese guger-tree seedlings.
1994
Sheu B.H.
Ozone alters carbon allocation in loblolly pine: assessment with carbon-11 labeling.
1990
Spence R.D. | Rykiel E.J. Jr. | Sharpe P.J.H.
Effect of increasing ozone and carbon dioxide on photosynthetic and related biochemical properties of two silver birch clones during three years of exposure
2002
Riikonen, J. (Finnish Forest Research Institute, Suonenjoki (Finland). Suonenjoki Research Station) | Holopainen, T. | Oksanen, E. | Vapaavuori, E.
Under elevated CO2 photosynthesis was 15-50% higher than in chamber controls depending on the weather conditions of the growing seasons. When measured at 360 ppm CO2 both elevated CO2 and elevated CO2 + O3 treatments decreased net photosynthesis, stomatal conductance and also transpiration, indicating downregulation of photosynthesis at elevated CO2
اظهر المزيد [+] اقل [-]Moderation of CO2 induced gas exchange and growth responses by elevated tropospheric O3
2002
Karnosky, D. F. (Michigan Technological University, Houghton (USA). School of Forestry and Wood Products) | Sober, A. | Sharma, P. | Kubiske, M. | Isebrands, J.G.
Stimulation of photosynthesis by elevated CO2 has been consistently found for aspen but not for maple. Similar responses have been shown for growth. In contrast, O3 causes decreased levels of photosynthesis and growth in aspen but does not appear to impact sugar maple significantly. When the pollutants co-occur, CO2 induced enhancements in photosynthesis and growth are moderated so that trees in CO2 and O3 treatments respond similarly to those in control rings. In this presentation, we will provide a physiological interpretation of our results in modelling growth response under future atmospheric conditions
اظهر المزيد [+] اقل [-]The effects of 2,4-D herbicide and organophosphorus insecticides on growth, photosynthesis, and chlorophyll a synthesis of Chlamydomonas reinhardtii (mt +)
1988
Wong, P.K. | Chang, L. (Department of Biology, The Chinese University of Hong Kong, Shatin, NT (Hong Kong))
Effects of ozone on vegetation
1997
Bastrup-Birk, A. | Mortensen, L.
The effects of sodium erythorbate and ethylenediurea on photosynthetic function of ozone-exposed loblolly pine seedlings
1999
Kuehler, E.A. | Flagler, R.B. (Department of Forest Science, Texas Agriculture and Mechanical University, College Station, TX 77843 (USA))
Growth, photosynthesis and UV-B absorbing compounds of Portuguese Barbela wheat exposed to ultraviolet-B radiation
1999
Correia, C.M. | Torres-Pereira, M.S. | Torres-Pereira, J.M.G. (Department of Biological and Environmental Engineering, University of Tras-os-Montes and Alto Douro, Apartado 202, 5000 Vila Real (Portugal))
Comparison of photosynthetic responses to manganese toxicity of deciduous broad-leaved trees in northern Japan
1997
Kitao, M. | Lei, T.T. | Koike, T. (Forestry and Forest Products Research Institute, Hokkaido Research Center, Sapporo 062 (Japan))
