JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2011, Vol. 35 ›› Issue (06): 11-16.doi: 10.3969/j.jssn.1000-2006.2011.06.003

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Breeding of new poplar varieties Lulin 1, Lulin 2 and Lulin 3 for plywood and pulpwood purpose

JIANG Yuezhong,QIN Guanghua,QIAO Yuling,WANG Yan,WANG Weidong, WANG Yuehai,XUN Shouhua,DONG Yufeng   

  1. Shandong Academy of Forestry,Jinan 250014, China
  • Online:2011-11-28 Published:2011-11-28

Abstract: Three new poplar clones were selected from the F1 populations obtained both from open pollination and controlled pollination by testing traits such as growth rate, asexual propagation ability, pest & disease resistance, wood mechanical property, wood chemical components, pulp property, plywood property and so on. The selected new poplar clones were quality varieties with traits of high growth rate, high asexual propagation ability, high resistance to pest & disease, quality mechanical properties, and were suitable for both pulpwood and plywood purpose. Among the three selected clones, ‘Lulin1’ was a female hybrid selected from a breeding population, which was obtained from open pollination of poplar clone 228-379 (Populus deltoides ‘228-379’) was suitable for both plywood and pulpwood purpose. Its growth rate was respectively 26.5 % and 14.5 % higher than CK I-107(P.×euramericana ‘Neva’) at Jvxian and Chang qing testing sites at the age of 6 years; ‘Lulin-2’ was a female hybrid selected from a breeding population, which was obtained from controlled pollination between I-72 (P.×euramericana ‘San martino’) and PE-3-71(P. deltoides ‘PE-3-71’) and is especially suitable for pulpwood. Its growth rate was 24.7 %—59.0 % higher than CK I-69 (P.deltoides ‘Lux’) at the age of 4 or 6 years; ‘Lulin-3’ was a male hybrid selected from a breeding population, which was obtained from controlled pollination between I-69 and PE-3-71, and was suitable for pulpwood and plywood. Its growth rate was 25.1 %—62.5 % higher than that of CK I-69 at the age of 4 or 6 years.

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