High heritability for heartwood in north Swedish Scots pine

被引：27
|
作者：
Ericsson, T
Fries, A
机构：
[1] Forestry Res Inst Sweden SkogForsk, SE-91821 Savar, Sweden
[2] Swedish Univ Agr Sci, Dept Forest Genet & Plant Physiol, SE-90183 Umea, Sweden
来源：
THEORETICAL AND APPLIED GENETICS | 1999年 / 98卷 / 05期
关键词：
bole straightness; heartwood diameter; increment core; Pinus sylvestris L; REML estimation;
D O I：
10.1007/s001220051128
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
In 44-year-old full-sibs of north Swedish Scots pine (Pinus sylvestris L.), the estimated heritability of heartwood diameter was 0.5 despite the influence of environmental changes (caused by an earlier thinning) which apparently had reduced the heritabilities of height and diameter to around zero. The heritability of bole straightness was estimated to be 0.6. The coefficient of additive genetic variation of heartwood diameter was estimated at 0.2, Lf a reliable 'heartwood-meter' becomes available that allows nondestructive measurements to be rapidly made in the field it should be possible to breed for or against heartwood formation with less effort compared with that required in breeding aimed at improving regular production traits.
引用
收藏
页码：732 / 735
页数：4
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