Similarity of Betula borysthenica Klokov with intraspecific taxa of Betula pubescens Ehrh.
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چکیده
منابع مشابه
Reversibility of Dimensional Changes in Birch (Betula Pubescens) and Scots Pine (Pinus Sylvestris L.) Wood
The reversibility of wood shrinkage through swelling of birch (Betula pubescens) and Scots pine (Pinus sylvestris L.) as a measure of their response to changing conditions of adsorption and desorption during service was determined. Virtually all dimensional changes that occurred in the form of shrinkage during drying at both conventional and high temperatures were recovered during swelling in b...
متن کاملModelling the timing of Betula pubescens budburst. I. Temperature and photoperiod: a conceptual model
The main factors triggering and releasing bud dormancy are photoperiod and temperature. Their individual and combined effects are complex and change along a transition from a dormant to a non-dormant state. Despite the number of studies reporting the effects of temperature and photoperiod on dormancy release and budburst, information on the parameters defining these relationships is scarce. The...
متن کامل20th century Betula pubescens subsp. czerepanovii tree- and forest lines in Norway
Background Georeferenced tree- and forest line data has a wide range of applications and are increasingly used for e.g. monitoring of climate change impacts and range shift modelling. As part of a research project, registrations of previously re-mapped tree- and forest lines have been georeferenced. The data described in this paper contains 100 re-mapped registrations of Betula pubescens subsp....
متن کاملWood Anatomy and Relationships of Betula uber
Wood anatomy of Betula uber (Ashe) Fernald is described and compared with woods of other birches belonging to series Humiles and series Costatae. Anatomically, wood of B. uber is typical of birches in general. On the basis of pore size and frequency, fiber characteristics, axial xylem parenchyma distribution, and absence of aggregate rays, it is argued that B. uber is properly classified in ser...
متن کاملEssential Oil of Betula pendula Roth. Buds
The essential oil of Betula pendula Roth. buds was obtained using both hydrodistillation and microdistillation techniques and their chemical compositions were analyzed using both gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). Overall, more than 50 compounds were identified representing 80% and 92% for hydrodistillation and microdistillation, respectively. The main com...
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ژورنال
عنوان ژورنال: Chornomorski Botanical Journal
سال: 2013
ISSN: 1990-553X,2308-9628
DOI: 10.14255/2308-9628/13.92/1