Journalartikel

Jahr der Veröffentlichung: 1996

Seiten: 172-180

Zeitschrift: Journal of applied botany = Angewandte Botanik

Bandnummer: 70

Heftnummer: 5-6

ISSN: 0066-1759

Verlag: Blackwell

Abstract: 

The ''European Stress Physiology and Climate Experiment - project 1: wheat'' (acronym: ESPACE-wheat) is funded by the EU since 1994. In the present paper the projects goals, the general methodological approach, and a summary of the experimental work performed in 1994 and 1995 are described.

Main objectives of the project are 1) to investigate experimentally the sensitivity of wheat growth, development and productivity to changes in CO2 concentration, climatic variables and other physiological stresses, 2) to use experimental data for extension, improvement and validation of process-based wheat growth simulation models, and 3) to use models for assessments of the influences on crops of climatic change, increasing CO2 concentration and additional physiological stresses in Europe.

Most experimental investigations are being performed by means of open-top chambers (OTC's) according to a common standard protocol to meet specific data requirements for model construction and validation. ESPACE-wheat OTC-experiments in 1994 and 1995 are summarized and the principal methods of data evaluation are presented by analyzing responses of grain yield and aboveground biomass of spring wheat, cv. Minaret, to CO2 enrichment and other factors varied in experiments at different sites. The mean observed CO2-doubling responses was about 1.4, i.e. grain yield and biomass production were increased by about 40% compared to growth in ambient CO2 concentration. However, there was a large variability of responses between sites and years. Results are discussed with respect to modeling attempts.

Harvard-Zitierstil: Hertstein, U., Fangmeier, A. and Jäger, H. (1996) ESPACE-wheat (European Stress Physiology and Climate Experiment-project 1: Wheat): Objectives, general approach, and first results, Journal of applied botany = Angewandte Botanik, 70(5-6), pp. 172-180

APA-Zitierstil: Hertstein, U., Fangmeier, A., & Jäger, H. (1996). ESPACE-wheat (European Stress Physiology and Climate Experiment-project 1: Wheat): Objectives, general approach, and first results. Journal of applied botany = Angewandte Botanik. 70(5-6), 172-180.