... ICP–Vegetation Program (the United NationsEconomic Commission for Europe International Cooperative Program on effectsof air pollution and other stresses on crops and nonwood plants) further the ... level in order to explain the variation in O3-dose/yield-reduction–responserelationships.There is,however,anincreasing interestin betterunderstanding the impacts of O3 on agriculture in Asia.A ... 1, on wheat (ESPACE-wheat). The ESPACE-wheatproject was initiated in 1994 to investigate the response of agroecosystems to ele-vated atmospheric carbon dioxide concentrations, climatic variation,...