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Titolo:
THE IMPACT OF CLIMATE-CHANGE ON YIELD OF WHEAT IN EUROPE - RESULTS OFTHE EUROPEAN STRESS PHYSIOLOGY AND CLIMATE EXPERIMENT (ESPACE-WHEAT)
Autore:
BENDER J; HERTSTEIN U; FANGMEIER A; VANOIJEN M; WEIGEL HJ; JAGER HJ;
Indirizzi:
FAL,INST AGR OKOL,BUNDESALLEE 50 D-38116 BRAUNSCHWEIG GERMANY JUSTUS LIEBIG UNIV,INST PFLANZENOKOL D-35392 GIESSEN GERMANY DLO,AB,RES INST AGROBIOL & SOIL FERTIL NL-6700 AA WAGENINGEN NETHERLANDS
Titolo Testata:
Journal of Applied Botany-Angewandte Botanik
fascicolo: 1-2, volume: 72, anno: 1998,
pagine: 37 - 42
SICI:
0949-5460(1998)72:1-2<37:TIOCOY>2.0.ZU;2-2
Fonte:
ISI
Lingua:
GER
Soggetto:
TRITICUM-AESTIVUM L; CARBON-DIOXIDE; PLANT-RESPONSES; OZONE; CO2; GROWTH; STIMULATION; FIELD;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
21
Recensione:
Indirizzi per estratti:
Citazione:
J. Bender et al., "THE IMPACT OF CLIMATE-CHANGE ON YIELD OF WHEAT IN EUROPE - RESULTS OFTHE EUROPEAN STRESS PHYSIOLOGY AND CLIMATE EXPERIMENT (ESPACE-WHEAT)", Journal of Applied Botany-Angewandte Botanik, 72(1-2), 1998, pp. 37-42

Abstract

The European Stress Physiology and Climate Experiment (ESPACE-wheat) was funded by the EU from 1994-1997. Major goals of the project were 1) to investigate by means of experiments the sensitivity of wheat growth, development and productivity to the combined effects of changes inCO2 concentration, climatic variables and other physiological stresses, 2) to use experimental data for extension and improvement of process-based wheat growth simulation models, and 3) to apply models to assess the influences on crops of climatic change, CO2 concentration and additional stresses in Europe. Experimental studies were performed at different sites in Europe through three consecutive seasons by means ofopen-top chambers according to a common standard protocol, and two simulation models were used for the analysis: AFRCWHEAT2 and LINTULCC. This paper summarizes the main findings of the effects of CO2 enrichment and other factors such as ozone, drought stress or nitrogen supply on the yield response of spring wheat (Triticum aestivum cv. Minaret). A comparison of the measured data with the main outputs of the LINTULCC model simulations is are presented. Generally, Minaret wheat did notrespond significantly to ozone. CO2 enrichment had a positive influence on grain yield in almost all experiments, however, significant interactions between CO2 and other factors were not common. The average measured yield increase due to CO2 doubling was 35 % compared to grain yield measured at ambient CO2 concentrations, although there was a great variability in yield responses between sites and years. LINTULCC predicted a 42 % yield increase, but a much smaller variation between individual experiments. Although the effects of CO2 and O-2 on crop growth and yield were acceptably simulated, observed process-rates often showed variation not related to light intensity, temperature, CO2 or O-2, ie, not related to the main driving variables of the models. This unexplained variability in the measured datasets suggested a role of factors which were not accounted for in the models.

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Documento generato il 07/07/20 alle ore 22:36:15