Contributors; Preface; 1. Introduction: some terminology and common mechanisms H. G. Jones and M. B. Jones; 2. The impact of environmental stresses on ecosystems F. I. Woodward; 3. Whole-plant responses to stress in natural and agricultural systems J. P. Grime; 4. Photosynthesis and gas exchange G. D. Farquhar, S. C. Wong, J. R. Evans and K. T. Hubick; 5. Regulation of growth and development of plants growing with a restricted supply of water R. E. Sharp and W. J. Davies; 6. Stresses, membranes and cell walls R. G. Wyn Jones and J. Pritchard; 7. Desiccation injury, anhydrobiosis and survival G. R. Stewart; 8. Molecular biology: application to studies of stress tolerance S. G. Hughes, J. A. Bryant and N. Smirnoff; 9. Environmental control of gene expression and stress proteins in plants Tuan-Hua David Ho and M. M. Sachs; 10. Plant tissue and protoplast culture: applications to stress physiology and biochemistry D. W. Rains; 11. Breeding methods for drought resistance A. Blum; 12. Selection for physiological characters - examples from breeding for salt tolerance A. R. Yeo and T. J. Flowers; 13. Prospects for improving crop production in stressful environments R. B. Austin; Index.