Number 6, April

Tree Physiology 21:345–358  [ Summary ] [ Free Full Text ]
A six-year study of sapling and large-tree growth and mortality responses to natural and induced variability in precipitation and throughfall
Paul J. Hanson, Donald E. Todd, Jr. and Jeffrey S. Amthor

Tree Physiology 21:359–367  [ Summary ] [ Full Text ]
Ascorbic acid changes the pattern of purine metabolism during germination of white spruce somatic embryos
Claudio Stosolla, Natalia Loukanina, Hiroshi Ashihara, Edward C. Yeung and Trever A. Thorpe

Tree Physiology 21:369–376 [ Summary ] [ Full Text ]
Production efficiency of loblolly pine and sweetgum in response to four years of intensive management
Lisa Samuelson, Tom Stokes, Tom Cooksey and Price McLemore, III

Tree Physiology 21:377–386 [ Summary ] [ Full Text ]
Photosynthetic light acclimation in peach leaves: importance of changes in mass:area ratio, nitrogen concentration, and leaf nitrogen partitioning
X. Le Roux, A. S. Walcroft, F. A. Daudet, H. Sinoquet, M. M. Chaves, A. Rodrigues and L. Osorio

Tree Physiology 21:387–394 [ Summary ] [ Full Text ]
Winter stem xylem pressure in walnut trees: effects of carbohydrates, cooling and freezing
Thierry Améglio, Frank W. Ewers, Hervé Cochard, Michel Martignac, Mark Vandame, Christian Bodet and Pierre Cruiziat

Tree Physiology 21:395–401 [ Summary ] [ Full Text ]
Influence of tree internal N status on uptake and translocation of C and N in beech: a dual ¹³C and ¹⁵N labeling approach
Jens Dyckmans and Heiner Flessa

Tree Physiology 21:403–408 [ Summary ] [ Full Text ]
Enhanced transpiration in response to wind effects at the edge of a blue gum (Eucalyptus globulus) plantation
P. J. Taylor, I. K. Nuberg and T. J. Hatton

Tree Physiology 21:409–414 [ Summary ] [ Full Text ]
Within-tree variation in transpiration in isolated evergreen oak trees: evidence in support of the pipe model theory
Juan Manual Infante, André Mauchamp, Rocío Fernández-Alé, Richard Joffre and Serge Rambal

Tree Physiology 21:415–416 [ Free Full Text ]
Book Review
Ecophysiology of Northern Spruce Species: The Performance of Planted Seedlings
Steven C. Grossnickle
Reviewed by Bill Parker