Phenotypic changes in progenies of northern clones ofPicea abies(L.) Karst. grown in a southern seed orchard
作者:
Øystein Johnsen,
期刊:
Scandinavian Journal of Forest Research
(Taylor Available online 1989)
卷期:
Volume 4,
issue 1-4
页码: 331-341
ISSN:0282-7581
年代: 1989
DOI:10.1080/02827588909382570
出版商: Taylor & Francis Group
关键词: Picea abies;seasonal growth rhythm;environmental preconditioning;after‐effects;parent plant environment;seed orchard;phenotypic selection;breeding
数据来源: Taylor
摘要:
Results are presented from three different field trials comparing controlled crossed materials of Norway spruce from the southern seed orchard at Lyngdal (58° N) with open‐pollinated progenies from the same mother trees standing in the northern natural forest (63–66° N). The seed orchard progenies flushed consistently later in the spring, terminated leader shoot growth later in the summer, had higher frequencies of lammas shoots, were delayed in lignification during autumn, and were 15% taller at age seven years from seed. The difference between the orchard‐ and the natural stand material appeared to be permanent from age four to age seven. It is suspected that the non‐native environment in the seed orchard could affect the genotypic performance of the seed orchard progenies.
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