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Annals of Forest Science

, Volume 70, Issue 7, pp 751–759 | Cite as

Genotypic parameters of wood density and fiber traits in triploid hybrid clones of Populus tomentosa at five clonal trials

  • Feng Wu
  • Pingdong Zhang
  • Jicheng Pei
  • Xiangyang KangEmail author
Original Paper

Abstract

Context

A clear understanding of the genetic control of wood properties is a prerequisite for breeding for higher wood quality in Populus tomentosa Carr. hybrid clones.

Aims

The experiments aimed at unraveling genetic and environmental effects on wood properties among triploid hybrid clones of P. tomentosa.

Methods

We used 5-year-old clonal trials established in Northern China to assess the heritability of wood density and fiber traits. Two hundred seventy trees from nine clones were sampled in five sites.

Results

Site had a very significant effect on all recorded traits. Despite this large site effect, a tight genetic control was detected and clonal repeatability varied between 0.53 and 0.95. Significant genotype × environment interactions were detected for most of the traits. Moderate to tight correlation were evidenced among traits but they were not consistent with that in several cases that were site-dependent.

Conclusions

Our results revealed a tight genetic control over several wood properties and therefore breeding programs might be able to improve wood density, fiber length, and coarseness in these hybrids.

Keywords

Triploid clones Populus tomentosa Wood density Fiber traits Clonal repeatability Genotypic correlation 

Notes

Acknowledgments

The author would like to thank Fangdong Zhang and Yatong Xie from Tianjin University of Science and Technology for their assistance with fiber properties measurements.

Funding

This study was supported by the Forestry Public Benefit Research Foundation (20100400900-3).

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Copyright information

© INRA and Springer-Verlag France 2013

Authors and Affiliations

  • Feng Wu
    • 1
  • Pingdong Zhang
    • 1
  • Jicheng Pei
    • 2
  • Xiangyang Kang
    • 1
    Email author
  1. 1.National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, College of Biological Sciences and BiotechnologyBeijing Forestry UniversityBeijingPeople’s Republic of China
  2. 2.Papermaking LaboratoryTianjin University of Science & Technology (TUST)TianjinPeople’s Republic of China

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