Number 2, February

Tree Physiology 23:73–83 [ Summary ] [ Full Text ]
Effects of exogenous gibberellin and auxin on shoot elongation and vegetative bud development in seedlings of Pinus sylvestris and Picea glauca
C. H. A. Little and Joanne E. MacDonald

Tree Physiology 23:85–95 [ Summary ] [ Full Text ]
Biochemical acclimation patterns of Betula pendula and Pinus sylvestris seedlings to elevated carbon dioxide concentrations
Eija Juurola

Tree Physiology 23:97–108 [ Summary ] [ Full Text ]
Contrasting effects of elevated carbon dioxide concentration and temperature on Rubisco activity, chlorophyll fluorescence, needle ultrastructure and secondary metabolites in conifer seedlings
Leena Sallas, Eeva-Maria Luomala, Jarkko Utriainen, Pirjo Kainulainen and Jarmo K. Holopainen

Tree Physiology 23:109–118 [ Summary ] [ Full Text ]
Leaf senescence and late-season net photosynthesis of sun and shade leaves of overstory sweetgum (Liquidambar styraciflua) grown in elevated and ambient carbon dioxide concentrations
Jeffrey D. Herrick and Richard B. Thomas

Tree Physiology 23:119–127 [ Summary ] [ Full Text ]
Moderate shade can increase net gas exchange and reduce photoinhibition in citrus leaves
John L. Jifon and James P. Syvertsen

Tree Physiology 23:129–136 [ Summary ] [ Full Text ]
Shoot growth and crown development: effect of crown position in three-dimensional simulations
Eero Nikinmaa, Christian Messier, Risto Sievänen, Jari Perttunen and Mika Lehtonen

Tree Physiology 23:137–144 [ Summary ] [ Full Text ]
Photosynthesis–nitrogen relationships: interpretation of different patterns between Pseudotsuga menziesii and Populus × euroamericana in a mini-stand experiment
Francesco Ripullone, Giacomo Grassi, Marco Lauteri and Marco Borghetti