Physiology and growth of advance Picea rubens and Abies balsamea regeneration following different canopy openings
نویسندگان
چکیده
منابع مشابه
Crown architecture of Abies balsamea from four canopy positions.
Data collected from four distinct canopy positions from each of 39 Abies balsamea (L.) Miller trees were used to construct models to describe the cumulative leaf area distribution within the crown and to predict the needle mass of individual branches, the average branch angle, branch diameter, branch length, and crown radius per whorl, and the average number of living branches per whorl. We tes...
متن کاملCambial activity and intra-annual xylem formation in roots and stems of Abies balsamea and Picea mariana.
BACKGROUND AND AIMS Studies on xylogenesis focus essentially on the stem, whereas there is basically no information about the intra-annual growth of other parts of the tree. As roots strongly influence carbon allocation and tree development, knowledge of the dynamics of xylem production and maturation in roots at a short time scale is required for a better understanding of the phenomenon of tre...
متن کاملThe effect of light availability and basal area on cone production in Abies balsamea and Picea glauca
Mean annual seed production is assumed to be proportional to basal area for canopy trees, but it is not known if subcanopy trees produce fewer seeds than expected (given their size) because of low light availability. Ovulate cone production was examined for balsam fir (Abies balsamea (L.) Mill.) and white spruce (Picea glauca (Moench) Voss) in 1998 and for balsam fir in 2000 in western Quebec u...
متن کاملMean canopy stomatal conductance responses to water and nutrient availabilities in Picea abies and Pinus taeda.
We compared sap-flux-scaled, mean, canopy stomatal conductance (GS) between Picea abies (L.) Karst. in Sweden and Pinus taeda (L.) in North Carolina, both growing on nutritionally poor soils. Stomatal conductance of Picea abies was approximately half that of Pinus taeda and the sensitivity of GS in Picea abies to vapor pressure deficit (D) was lower than in Pinus taeda. Optimal fertilization in...
متن کاملPerformance of two Picea abies ( L . ) Karst . stands at different stages of decline III . Canopy transpiration of green trees
The water relations of Picea abies in a healthy stand with green trees only and a declining stand with trees showing different stages of needle yellowing were investigated in northern Bavaria. The present study is based on observations of trees differing in their nutritional status but apparently green on both sites in order to identify changes in the response pattern which might be caused by a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Tree Physiology
سال: 2014
ISSN: 0829-318X,1758-4469
DOI: 10.1093/treephys/tpt114