Northern Forest Trees Under Increasing Atmospheric Humidity

2018 ◽  
pp. 317-336 ◽  
Author(s):  
Elina Oksanen ◽  
Jenna Lihavainen ◽  
Markku Keinänen ◽  
Sarita Keski-Saari ◽  
Sari Kontunen-Soppela ◽  
...  
Keyword(s):  
Forest Trees ◽  
Atmospheric Humidity ◽  
Northern Forest

Interacting Effects of Multiple Stresses on Growth and Physiological Processes in Northern Forest Trees

2000 ◽  
pp. 149-180 ◽  
Author(s):  
Judson G. Isebrands ◽  
Richard E. Dickson ◽  
Joanne Rebbeck ◽  
David F. Karnosky
Keyword(s):  
Forest Trees ◽  
Multiple Stresses ◽  
Northern Forest ◽  
Physiological Processes

Growth and Development of Northern Forest Trees as Affected by Temperature and Light

1993 ◽  
pp. 43-57 ◽  
Author(s):  
Olavi Junttila ◽  
Jarle Nilsen
Keyword(s):  
Growth And Development ◽  
Forest Trees ◽  
Northern Forest

scholarly journals Phenolic metabolites in the resistance of northern forest trees to pathogens — past experiences and future prospects

2008 ◽  
Vol 38 (11) ◽  
pp. 2711-2727 ◽  
Author(s):  
Johanna Witzell ◽  
Juan A. Martín
Keyword(s):  
Defense Mechanisms ◽  
Laser Scanning ◽  
Current Knowledge ◽  
Tree Breeding ◽  
Laser Scanning Microscopy ◽  
Confocal Laser ◽  
Forest Trees ◽  
Northern Forest ◽  
Phenolic Metabolites ◽  
Future Studies

Phenolic metabolites are frequently implicated in chemical defense mechanisms against pathogens in woody plants. However, tree breeding programmes for resistance to pathogens and practical tree-protection applications based on these compounds seem to be scarce. To identify gaps in our current knowledge of this subject, we explored some of the recent literature on the involvement of phenolic metabolites in the resistance of northern forest trees (Pinus, Picea, Betula, Populus, and Salix spp.) to pathogens. Although it is evident that the phenolic metabolism of trees is often activated by pathogen attacks, few studies have convincingly established that this induction is due to a specific defense response that is capable of stopping the invading pathogen. The role of constitutive phenolics in the resistance of trees to pathogens has also remained unclear. In future studies, the importance of phenolics in oxidative stress, cell homeostasis and tolerance, and the spatial and temporal localization of phenolics in relation to invading pathogens should be more carefully acknowledged. Possibilities for future studies using advanced methods (e.g., metabolic profiling, confocal laser scanning microscopy, and use of modified tree genotypes) are discussed.

scholarly journals Wood properties of northern forest trees grown under elevated CO2, O3 and temperature

2007 ◽  
Vol 2007 (47) ◽  
Author(s):  
Katri Kostiainen
Keyword(s):  
Wood Properties ◽  
Forest Trees ◽  
Northern Forest

Forest Trees of North America

1880 ◽  
Vol 9 (234supp) ◽  
pp. 3730-3730
Author(s):  
Charles S. Sargent
Keyword(s):  
North America ◽  
Forest Trees

TWO NEW SEVERE LEAF SPOT DISEASE ON FOREST TREES OF JALGAON (MAHARASTRA) INDIA

2017 ◽  
Vol 23 (2) ◽  
Author(s):  
S. A. FIRDOUSI
Keyword(s):  
Leaf Spot ◽  
Fungal Disease ◽  
Leaf Spot Disease ◽  
Forest Trees ◽  
First Report ◽  
Spot Disease ◽  
Severe Leaf

During the survey of the forest fungal disease, of Jalgaon district, two severe leaf spot diseases on Lannae coromandelica and ( Ougenia dalbergioides (Papilionaceae) were observed in Jalgaon, forest during July to September 2016-17. The casual organism was identified as Stigmina lanneae and Phomopsis sp. respectively1-4,7. These are first report from Jalgaon and Maharashtra state.

Phänologische Trends bei den Waldbäumen in der Schweiz | Phenological trends regarding the forest trees in Switzerland

2005 ◽  
Vol 156 (6) ◽  
pp. 207-210 ◽  
Author(s):  
Claudio Defila
Keyword(s):  
Regional Differences ◽  
Early Growth ◽  
Horse Chestnut ◽  
Forest Trees ◽  
Spring Season ◽  
Arrival Times ◽  
The Past ◽  
Early Arrival ◽  
Southern Side ◽  
The Alps

Numerous publications are devoted to plant phenological trends of all trees, shrubs and herbs. In this work we focus on trees of the forest. We take into account the spring season (leaf and needle development) as well as the autumn (colour turning and shedding of leaves) for larch, spruce and beech, and,owing to the lack of further autumn phases, the horse chestnut. The proportion of significant trends is variable, depending on the phenological phase. The strongest trend to early arrival in spring was measured for needles of the larch for the period between 1951 and 2000 with over 20 days. The leaves of the horse chestnut show the earliest trend to turn colour in autumn. Beech leaves have also changed colour somewhat earlier over the past 50 years. The trend for shedding leaves, on the other hand, is slightly later. Regional differences were examined for the growth of needles in the larch where the weakest trends towards early growth are found in Canton Jura and the strongest on the southern side of the Alps. The warming of the climate strongly influences phenological arrival times. Trees in the forest react to this to in a similar way to other plants that have been observed (other trees, shrubs and herbs).

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