Variation in the Growth Traits and Wood Properties of Hybrid White Poplar Clones

Forests

Youming Dong¹  Weihua Liao²  Zhong Chen²  Kai Gao²  Bingqi Lei²  Xinmin An²  Huandi Ma²  Shanwen Li³ 

[1] College of Materials Sciences and Technology, Beijing Forestry University, Beijing 100083, China;National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of the Ministry of Education, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China;Shandong Academy of Forestry, Jinan 250014, China;

关键词: hybrid poplar clones;    clonal variation;    growth traits;    physical properties;    chemical properties;   

DOI  :  10.3390/f6041107

来源: DOAJ

【 摘 要 】

The physical and chemical properties of poplar clones largely determine their suitability for different applications. The main objective of this study was to investigate clonal variation in four hybrid poplar clones grown at three sites in North China and identify the superior clone. Study materials were collected from four clones of hybrid white poplar: Populus tomentosa “LM50”, used as the control; two clones (Yiyang-1 and Yiyang-2), new hybrids of (P. tomentosa × P. bolleana) × P. tomentosa “Truncata”; and Yiyang-3, a new hybrid of (P. tomentosa × P. bolleana) × P. tomentosa “LM50”. In total, 192 individuals from four hybrid clones were randomly chosen for sampling. The growth traits of four 7-year-old clones were examined at three sites. We also measured the wood properties of four 6-year-old clones at the Fengfeng nursery. Variation in the growth traits and the ranking of stem volumes differed among sites. Fiber traits and wood chemical components showed significant interclonal variation. With regard to the comprehensive growth rate, cellulose content, holocellulose content, and fiber traits, Yiyang-1 exhibited the best performance among the four hybrid poplar clones, indicating its utility as a raw material for pulp and papermaking.

【 授权许可】

Unknown