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Genetic improvement of wood density and radial growth in Larix kaempferi: results from a diallel mating test

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Genetic improvement of wood density and radial growth in Larix kaempferi: results from a diallel mating test

Content Provider	Springer Nature Link
Author	Fukatsu, Eitaro Tsubomura, Miyoko Fujisawa, Yoshitake Nakada, Ryogo
Copyright Year	2013
Abstract	Wood density is an important component of wood quality, and it is therefore important to assess whether it can be subject to genetic improvement.We assessed the potential for genetic improvement of wood density in Larix kaempferi by recording components of annual growth rings. A full diallel mating test based on six plus L. kaempferi trees was used. Trees were 29 years old. Wood density was recorded by soft X-ray densitometry, and genetic parameters and genetic gains were computed.Wood density of mature wood was highly heritable, and the largest heritability (0.78) was reached at age 25. Specific combining ability and reciprocal effects displayed very low variance. The age–age correlation of overall wood density was very high (>0.94). The genetic correlation between overall wood density and basal cross-sectional area was positive after age 10. Early selection at age 6 would account for 69 % of the genetic gain from direct selection at age 28 in terms of wood density.Genetic improvement of wood density could be achieved by mass selection and a simultaneous selection for radial increment in L. kaempferi; early selection for wood density can be achieved in this species.
Starting Page	451
Ending Page	459
Page Count	9
File Format	PDF
ISSN	12864560
Journal	Annals of Forest Science
Volume Number	70
Issue Number	5
e-ISSN	1297966X
Language	English
Publisher	Springer-Verlag
Publisher Date	2013-04-09
Publisher Institution	Institut National de la Recherche Agronomique (INRA)
Publisher Place	Paris
Access Restriction	Subscribed
Subject Keyword	Genetic parameters Wood density Larix kaempferi Japanese larch Heritability Genetic correlation Forestry Wood Science & Technology Forestry Management Tree Biology Environment
Content Type	Text
Resource Type	Article
Subject	Ecology Forestry

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Genetic improvement of wood density and radial growth in Larix kaempferi: results from a diallel mating test

Age trends in the genetic parameters of wood density and the relationship with growth rates in hybrid larch (Larix gmelinii var. japonica × L. kaempferi) F1

Inheritance of wood properties and their radial variations in full-sib families of 36-year-old Japanese larch (Larix kaempferi (Lamb.) Carr.)

Genetic relationship between wood properties and growth traits in Larix kaempferi obtained from a diallel mating test

Genetic relationship between wood properties and growth traits in Larix kaempferi obtained from a diallel mating test

Genetic variation and early selection in Larix decidua Mill. from progeny test in Romania

Genetics of wood quality attributes in Western Larch

Genetic variation in wood stiffness and strength properties of hybrid larch (Larix gmelinii var. japonica × L. kaempferi)

Inheritance of male flower production in Cryptomeria japonica (sugi) estimated from analysis of a diallel mating test

Genetic improvement of wood density and radial growth in Larix kaempferi: results from a diallel mating test

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Genetic improvement of wood density and radial growth in Larix kaempferi: results from a diallel mating test

Age trends in the genetic parameters of wood density and the relationship with growth rates in hybrid larch (Larix gmelinii var. japonica × L. kaempferi) F1

Inheritance of wood properties and their radial variations in full-sib families of 36-year-old Japanese larch (Larix kaempferi (Lamb.) Carr.)

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Inheritance of male flower production in Cryptomeria japonica (sugi) estimated from analysis of a diallel mating test

Genetic improvement of wood density and radial growth in Larix kaempferi: results from a diallel mating test