scholarly journals INFLUENCE OF EXOGENOUS GIBBERELLIN AND ITS MIXTURE WITH SUCROSE ON THE FORMATION OF XYLEM INCREMENT OF SILVER BIRCH

2019 ◽  
pp. 31
Author(s):  
Людмила Людвиговна Новицкая ◽  
Татьяна Владимировна Тарелкина ◽  
Надежда Николаевна Николаева ◽  
Диана Сергеевна Иванова ◽  
Людмила Игоревна Семенова ◽  
...  
Keyword(s):  
Silver Birch ◽  
Exogenous Gibberellin

The Effect of Growth Rate on the Strength Properties of Sawn Beams of Silver Birch (Betula pendula Roth)

1999 ◽  
Vol 14 (1) ◽  
pp. 18-26
Author(s):  
R. A. Dunham ◽  
A. D. Cameron ◽  
J. A. Petty
Keyword(s):  
Growth Rate ◽  
Betula Pendula ◽  
Strength Properties ◽  
Silver Birch ◽  
Betula Pendula Roth

Construction of genetic linkage maps of silver birch based on AFLP markers

2009 ◽  
Vol 31 (2) ◽  
pp. 213-218 ◽  
Author(s):  
Fu-Ling GAO ◽  
Ting-Bo JIANG
Keyword(s):  
Genetic Linkage ◽  
Silver Birch ◽  
Aflp Markers ◽  
Linkage Maps ◽  
Genetic Linkage Maps

scholarly journals Growth Responses of Boreal Scots Pine, Norway Spruce and Silver Birch Seedlings to Simulated Climate Warming over Three Growing Seasons in a Controlled Field Experiment

Forests ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 943
Author(s):  
Katri Nissinen ◽  
Virpi Virjamo ◽  
Antti Kilpeläinen ◽  
Veli-Pekka Ikonen ◽  
Laura Pikkarainen ◽  
...  
Keyword(s):  
Norway Spruce ◽  
Scots Pine ◽  
Root Biomass ◽  
Growing Season ◽  
Silver Birch ◽  
Shoot Biomass ◽  
Growth Responses ◽  
Growing Seasons ◽  
Simulated Climate ◽  
Shoot And Root Biomass

We studied the growth responses of boreal Scots pine (Pinus sylvestris L.), Norway spruce (Picea abies L. Karst.) and silver birch (Betula pendula Roth) seedlings to simulated climate warming of an average of 1.3 °C over the growing season in a controlled field experiment in central Finland. We had six replicate plots for elevated and ambient temperature for each tree species. The warming treatment lasted for the conifers for three growing seasons and for the birch two growing seasons. We measured the height and diameter growth of all the seedlings weekly during the growing season. The shoot and root biomass and their ratios were measured annually in one-third of seedlings harvested from each plot in autumn. After two growing seasons, the height, diameter and shoot biomass were 45%, 19% and 41% larger in silver birch seedlings under the warming treatment, but the root biomass was clearly less affected. After three growing seasons, the height, diameter, shoot and root biomass were under a warming treatment 39, 47, 189 and 113% greater in Scots pine, but the root:shoot ratio 29% lower, respectively. The corresponding responses of Norway spruce to warming were clearly smaller (e.g., shoot biomass 46% higher under a warming treatment). As a comparison, the relative response of height growth in silver birch was after two growing seasons equal to that measured in Scots pine after three growing seasons. Based on our findings, especially silver birch seedlings, but also Scots pine seedlings benefitted from warming, which should be taken into account in forest regeneration in the future.

scholarly journals Towards Silviculture Guidelines to Produce Large-Sized Silver Birch (Betula pendula Roth) Logs in Western Europe

Forests ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 599
Author(s):  
Héloïse Dubois ◽  
Hugues Claessens ◽  
Gauthier Ligot
Keyword(s):  
Betula Pendula ◽  
Western Europe ◽  
Forest Health ◽  
Silver Birch ◽  
Growth Potential ◽  
Betula Pendula Roth ◽  
Crown Diameter ◽  
Birch Trees ◽  
Timber Tree ◽  
Northeastern France

Forest health problems arising from climate change, pests and pathogens are a threat to the main timber tree species. As a result, silver birch (Betula pendula Roth) has become a precious asset for meeting oncoming forestry challenges in western Europe. However, silviculture guidelines to produce high-value birch logs in this region are lacking. Producing large-sized birch trunks requires crown release, i.e., removing crown competitors around selected target trees. These interventions are currently seldom carried out or else too late when the growth potential of the trees has already diminished. This study set out to ascertain the diameter at breast height (dbh) that could be reached by crown-released birch, determine dbh-associated crown diameters, and further characterize the gain obtained from early crown release on birch dbh growth. We measured 704 birch trees that had undergone crown release in 38 naturally regenerated pure birch stands in southern Belgium and in northeastern France. We then evaluated the variation in stem and crown diameter, and analyzed increments in response to the earliness of the interventions in three subsamples, also compared with control target birch. We found that trees with a dbh of 50 cm could be grown within 60 years. Based on crown diameter, to produce 40, 50 and 60 cm dbh trunk, the distance required between target birch trees at the end of the rotation was around 8, 10 and 12 m. With no intervention and in ordinary dense birch regenerations, the dbh increment was found to decline once the stand reached age 4–7 years. Starting crown release in stands aged 4–5 years can double the dbh increment of target trees and provide a continual gain that may last up to 20 years. When birch crowns are released after 9–12 years, it may already be too late for them to recover their best growth rate. Our contribution should help complete emerging guidelines in support of birch silviculture development.

BIOMASS ALLOCATION, LEAF AND FINE ROOT MORPHOLOGICAL ADAPTATIONS IN YOUNG BLACK ALDER (Alnus glutinosa(L.) Gaertn.), SILVER BIRCH (Betula pendulaRoth.) AND SCOTS PINE (Pinus sylvestrisL.)...

Oil Shale ◽  
2014 ◽  
Vol 31 (3) ◽  
pp. 289
Author(s):  
T KUZNETSOVA ◽  
A LUKJANOVA ◽  
K OTS ◽  
K ROSENVALD ◽  
I OSTONEN ◽  
...  
Keyword(s):  
Scots Pine ◽  
Biomass Allocation ◽  
Fine Root ◽  
Alnus Glutinosa ◽  
Silver Birch ◽  
Black Alder ◽  
Morphological Adaptations

Density and Composition of an Insect Population in a Field Trial of Chitinase Transgenic and Wild-type Silver Birch (Betula pendula) Clones

2008 ◽  
Vol 37 (6) ◽  
pp. 1582-1591 ◽  
Author(s):  
Liisa Vihervuori ◽  
Hanna-Leena Pasonen ◽  
Päivi Lyytikäinen-Saarenmaa
Keyword(s):  
Field Trial ◽  
Betula Pendula ◽  
Insect Population ◽  
Silver Birch ◽  
Wild Type

scholarly journals Variation among seed sources of silver birch in Scotland

2000 ◽  
Vol 73 (5) ◽  
pp. 419-435 ◽  
Author(s):  
R. Worrell
Keyword(s):  
Silver Birch ◽  
Seed Sources

Tuberization in potato at high temperatures: Responses to exogenous gibberellin, cytokinin and ethylene

1985 ◽  
Vol 28 (2) ◽  
pp. 263-266 ◽  
Author(s):  
C. M. Menzel
Keyword(s):  
High Temperatures ◽  
Exogenous Gibberellin

scholarly journals The effects of soil and air temperature on CO2 exchange and net biomass accumulation in Norway spruce, Scots pine and silver birch seedlings

2012 ◽  
Vol 32 (6) ◽  
pp. 724-736 ◽  
Author(s):  
J. Pumpanen ◽  
J. Heinonsalo ◽  
T. Rasilo ◽  
J. Villemot ◽  
H. Ilvesniemi
Keyword(s):  
Norway Spruce ◽  
Scots Pine ◽  
Air Temperature ◽  
Biomass Accumulation ◽  
Co2 Exchange ◽  
Silver Birch

Polyprenols of Wood and Leaf Tissue of the Silver Birch, Betula verrucosa

Nature ◽  
1966 ◽  
Vol 212 (5068) ◽  
pp. 1364-1366 ◽  
Author(s):  
A. R. WELLBURN ◽  
F. W. HEMMING
Keyword(s):  
Leaf Tissue ◽  
Silver Birch ◽  
Betula Verrucosa
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