Needle contents of Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.) as biomarkers for assessment of vitality in comparison with the crown condition
Katzel, R.; Landmesser, H.; Loffler, S.; Ringel, C.; Hahn, R.; Wienhaus, O.
Phyton Horn 45(3): 117-137
Studies were conducted in Saxony and Bradendburg, Germany to determine the suitability and efficiency of 30 biomarkers of Norway spruce (Picea abies) and Scots pine (Pinus sylvestris) in assessing tree vitality conditions, compared with defoliation class evaluations regarding damage registration. The first vitality group represented the average trees of the stand (AT) while the second vitality group represent the most vigourous and above average trees of the stand, i.e., elite trees (ET).