Preface; 1. Global change and plant water relations P. G. Jarvis; 2. Cavitation. A review: past, present and future J. A. Milburn; 3. Effect of cavitation on the status of water in plants J. J. Oertli; 4. Stomatal control of xylem cavitation H. G. Jones and R. A. Sutherland; 5. Refilling of embolized xylem J. Grace; 6. Interpretation of the dynamics of plant water potential M. A. Dixon and R. W. Johnson; 7. A proposed mechanism of freezing and thawing in conifer xylem D. J. Robson and J. A. Petty; 8. Winter xylem embolism and spring recovery in Betula cordifolia, Fagus grandifolia, Abies balsamea and Picea rubens J. Sperry; 9. Drought resistance strategies and vulnerability to cavitation of some Mediterranean sclerophyllous trees S. Salleo and M. A. Lo Gullo; 10. Relations between sap velocity and cavitation in broad-leaved trees M. Borghetti, P. De Angelis, A. Raschi, G. E. Scarascia Mugnozza, R. Tognetti and R. Valentini; 11. NMR and water transport in plants S. Ratkovic and G. Bacic; 12. The symplast radial-axial water transport in plants: an NMR approach A. V. Anisimov; 13. Reproductive adaptation by polyembryony of coniferous forest trees under climatic stress is revealed by the metabolism of tritiated water D. J. Durzan; 14. A heat balance method for measuring sap flow in small trees C. Valancogne and Z. Nasr; 15. Heat pulse measurements on beech in relation to weather conditions J. Heimann and W. Stickan; 16. Extremely fast changes of xylem water flow rate in tall trees caused by atmospheric, soil and mechanic factors J. Cermak and J. Kucera; 17. Water relations and water transport in coppice vs. single stem Querus cerris L. trees M. Sabatti, G. E. Scarascia Mugnozza, R. Valentini and A. Del Lungo; 18. Environmental control of water flux through Maritime pine D. Loustau and A. Granier; 19. Evaluation of transpiration of apple trees and measurement of daily course of water flow within the main branches of walnut trees C. Valancogne, T. Ameglio, L. Angelocci and P. Cruiziat; 20. Estimating citrus orchard canopy resistance from measurements of actual and potential transpiration Y. Cohen, M. Fuchs and S. Moreshet; 21. Stomatal conductance in tomato responds to air humidity I. Ferreira; 22. Water relations of Canarian laurel forest trees R. Losch; 23. Watering regime and photosynthetic performance of Gunnera tinctoria Mirbel G. J. Campbell and B. A. Osborne; 24. Water relations and ultrasound emissions in Douglas fir-seedings infected with xylem pathogens M. Pisante, N. Moretti and S. Frisullo; 25. Diurnal fruit shrinkage: a model A. Berger and G. Selles; 26. Analysis of pressure-volume curves by non-linear regressions M. N. Anderson, C. R. Jensen and R. Losch; 27. Determination of the amount of apoplastic water and other water relations parameters in conifer needles K. Gross and W. Koch; 28. The assessment of water status in chilled plants A. Pardossi, P. Vernieri and F. Tognoni; 29. An artificial osmotic cell: a model system for studying phenomena of negative pressure and for determining concentrations of solutes H. Heydt and E. Steudle; 30. Measurement of water and solute uptake into excised roots at positive and negative roots pressures H. Heydt and E. Steudle; Index.