Levels of outcrossing and contamination in twoPinus sylvestrisL. seed orchards in Northern Sweden
作者:
YousryA. EL‐Kassaby,
Dag Rudin,
Reza Yazdani,
期刊:
Scandinavian Journal of Forest Research
(Taylor Available online 1989)
卷期:
Volume 4,
issue 1-4
页码: 41-49
ISSN:0282-7581
年代: 1989
DOI:10.1080/02827588909382544
出版商: Taylor & Francis Group
关键词: Pinus sylvestris;seed orchards;outcrossing;contamination;allozyme
数据来源: Taylor
摘要:
The joint levels of outcrossing and contamination in two young northern Swedish Scots pine (Pinus sylvestrisL.) seed orchards were studied with the aid of allozyme markers. High levels of contamination (21–36%) were estimated and were attributed to the observed low within orchard pollen production. Outcrossing rate estimates were high (0.957–0.961), though they departed significantly from complete outcrossing (t= 1.0) in spite of the observed high contamination levels. These results confirmed reported relationships between outcrossing and contamination levels in open‐pollinated seed orchards. It was concluded that a crop management option relying on supplemental mass‐pollination would be effective in reducing both contamination and inbreeding levels.
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