Reconstruction of the foliation ofPicea abiesby means of needle traces
作者:
Constantin Sander,
Dieter Eckstein,
期刊:
Scandinavian Journal of Forest Research
(Taylor Available online 1994)
卷期:
Volume 9,
issue 1-4
页码: 311-315
ISSN:0282-7581
年代: 1994
DOI:10.1080/02827589409382845
出版商: Taylor & Francis Group
关键词: Spruce;foliation reconstruction;needle traces.
数据来源: Taylor
摘要:
In conifers the needles are connected to the pith by so‐called needle traces, which elongate in accordance with the thickening of the shoot as long as the needles are alive. This study describes how to determine in retrospect the early foliation of spruce which has already been shed, by means of the needle traces found in the innermost column of the trees. The actual foliation of the main axis and of the branches of young trees showed no significant difference. The number of needle traces in the main axis as compared with the number of needles actually counted on the same segments showed no significant difference either. Therefore, the needle‐trace method appears to be applicable for reconstructing the foliation of old spruce trees retrospectively.
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