Intrafamily variation of grain spirality in a control-pollinated family of hybrid larch

NAKADA Ryogo, HANAOKA So, OHSAKI Hisashi, MURAKAMI Satoru, AKUTSU Hisashi

doi:10.20756/ffpri.23.1_1

Bibliographic Information

Other Title

グイマツ雑種F<sub>1</sub>の人工交配家系における繊維傾斜の家系内変動

Abstract

<p>Intrafamily variation of grain spirality was investigated in 210 individual trees of a control-pollinated family of hybrid larch (Larix gmelinii var. japonica × L. kaempferi) at age 12. Grain spirality at each growth ring boundary was measured by applying the splitting method to specimens obtained at around breast height from the sample trees. Mean and maximum spiralities were 0.96º ± 0.58º and 2.72º ± 0.78º (mean ± standard deviation), respectively.These results indicated that, among various larch populations, the investigated family had low-spirality and that intrafamily variation was large even among full sibs. The analysis of interrelationships among various parameters of grain spirality revealed a relatively high correlation between grain spirality at the outermost ring and mean spirality, indicating that log sorting for grain spirality can be achieved when outermost ring spirality can be measured on the logs. In conclusion, the combination of the genetic improvements obtained via family selection and log sorting to select better individual logs from each family is a promising approach towards a more efficient wood utilisation and sustainable forestry development.</p>

Journal

Bulletin of the Forestry and Forest Products Research Institute

Bulletin of the Forestry and Forest Products Research Institute 23 (1), 1-11, 2024-03-28

Forestry and Forest Products Research Institute

Keywords

Details 詳細情報について

CRID: 1390299616456513792

DOI: 10.20756/ffpri.23.1_1

ISSN: 21899363; 09164405

Text Lang: en

Data Source

JaLC

Abstract License Flag: Disallowed

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