Journal of Experimental Botany, Vol. 55, No. 407, © Society for Experimental Biology 2004; all rights reserved
Preface
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Shortage of water resources and deterioration in the quality and availability of agricultural land are worldwide problems. Water and land are critical resources and cannot be regarded as available in abundance. Degradation of land, reduction of river flow, and the increasing frequency of severe dust storms have seriously damaged the natural environment and retarded economic