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Detecting changes in tree health and productivity of silver fir in Slovenia
Torelli, Niko (Author), Shortle, W.C. (Author), Čufar, Katarina (Author), Ferlin, Franc (Author), Smith, K.T. (Author)

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Abstract
Cambial electrical resistance (CER) was used as an objective measure of vitality of silver fir (Abies alba Mill.) in the forests of Slovenia. Trees were rated during the growing season by CER and a subjective crown status index (CSI). Both CER and CSI were inversely correlated to annual ring width increment. Using both CER and CSI, fir were assigned to vitality and vigor categories. Inferences made from these categories and radial growth trends indicated that ring growth decreased prior to the development of canopy symptoms. This decrease in ring growth would have been detected as an increase in CER. This pattern of decline is consistent with the decline of trees due to chronic belowground stress. Variation in CER was due both to the vascular cambium and to the thickness of the nonconducting phloem.

Language:English
Keywords:tla, jelka, Abies alba (Mill.), zdravstveno stanje, produkcijska sposobnost, vitalnost, kambij, kambijeva cona, električna upornost, merjenje, metoda dela, Slovenija
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:BF - Biotechnical Faculty
Year:1999
Publisher:Parey
Number of pages:str. 189-197
Numbering:Vol. 29, No. 3
UDC:630
ISSN on article:0300-1237
COBISS.SI-ID:512422 Link is opened in a new window
Views:528
Downloads:308
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Record is a part of a journal

Title:European journal of forest pathology
Shortened title:Eur. j. for. pathol.
Publisher:Parey
ISSN:0300-1237
COBISS.SI-ID:6043655 This link opens in a new window

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