منابع مشابه
Studies on European beech (Fagus sylvatica L
Colour parameters of European beech were measured using CIELab system. 103 logs from 87 trees in 9 sites were cut into boards to study the variations of wood colour parameters. Both site and tree effect on colour were observed. Patterns of red heartwood occurrence were defined. When excepting red heartwood there was still a highly significant effect of site and tree; differences remained after ...
متن کاملRoot biomass and biomass increment in a beech (Fagus sylvatica L.) stand in North-East France
This study is part of a larger project aimed at quantifying the biomass and biomass increment of an experimental beech stand aged 30 years, and comparing the carbon sequestration in trees to carbon fluxes. The below ground part of trees is expected to play an important role in carbon sequestration. A method has been developed to estimate the biomass and biomass increment of coarse, small and fi...
متن کاملMechanisms of xylem recovery from winter embolism in Fagus sylvatica.
Hydraulic conductivity in the terminal branches of mature beech trees (Fagus sylvatica L.) decreased progressively during winter and recovered in the spring. The objective of this study was to determine the mechanisms involved in recovery. Two periods of recovery were identified. The first recovery of hydraulic conductivity occurred early in the spring, before bud break, and was correlated with...
متن کاملHyperspectral Bidirectional Reflectance Measurements of Fagus Sylvatica Leaves
This research focused on bidirectional reflectance distribution function (BRDF) measurements of Fagus sylvatica leaves, using a state of the art new multispectral Compact Laboratory SpectroGonioreflectometer (CLabSpeG). The BRDF was based on 4356 reflectance measurements covering the electromagnetic spectrum from 350 nm to 2500 nm. These measurements were acquired by independent positioning of ...
متن کاملApical meristems: the plant's fountain of youth.
During postembryonic development, all organs of a plant are ultimately derived from a few pluripotent stem cells found in specialized structures called apical meristems. Here we discuss our current knowledge about the regulation of plant stem cells and their environments with main emphasis on the shoot apical meristem of Arabidopsis thaliana. Recent studies suggest that stem cells are localized...
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ژورنال
عنوان ژورنال: New Phytologist
سال: 1950
ISSN: 0028-646X,1469-8137
DOI: 10.1111/j.1469-8137.1950.tb07506.x