Volume 21 Issue 4
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GUAN Lan-hua, PAN Hui-xin, HUANGMin-ren, SHI Ji-sen. Genetic variation of new clones of Populus deltoids (I-69) ×Populus euramericana (I-45)[J]. Journal of Zhejiang A&F University, 2004, 21(4): 376-381.
Citation: GUAN Lan-hua, PAN Hui-xin, HUANGMin-ren, SHI Ji-sen. Genetic variation of new clones of Populus deltoids (I-69) ×Populus euramericana (I-45)[J]. Journal of Zhejiang A&F University, 2004, 21(4): 376-381.

Genetic variation of new clones of Populus deltoids (I-69) ×Populus euramericana (I-45)

Funds:

九五 国家科技攻关项目(96-011-02-04)

  • Received Date: 2004-01-06
  • Rev Recd Date: 2004-09-06
  • Publish Date: 2004-12-20
通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Genetic variation of new clones of Populus deltoids (I-69) ×Populus euramericana (I-45)

Funds:

九五 国家科技攻关项目(96-011-02-04)

Abstract: The traits of DBH , height , volume , wood density , wet heartwood ratio , round degree , utilization ratio , and crooked degree were studied through variance analysis to learn about the genetic variation of all traits based on the 12th year' data. All traits except crooked degree were significantly different among the clones of Populus deltoides (I-69)Populus euremericana (I-45).The narrow-sense heritabilities of all these traits except crooked degree were 0.65 , 0.75 , 0.50 , 0.81 , 0.51 , 0.71 , 0.63 respectively , which indicated that all traits were genetically from medium to high. That is to say that all traits were more strongly controlled by genes than by environments and that high genetic gain could be gotten through selection.The 895 , 797 , 312 , 139 and 194 were the fastest clones of growth ;1271 , 410 , 187 , 748 and 1317 were the heaviest clones of wood density ;561 , 748 , 1150 , 1317 and 1381 were superior clones according to the round degree and utilization ratio.The traits of growth , wood quality and stem form had their own elite clones.In order to evaluate all these clones appropriately , all traits should be joint analyzed based on the breeding objective.[ Ch , 3 tab .13 ref .]

GUAN Lan-hua, PAN Hui-xin, HUANGMin-ren, SHI Ji-sen. Genetic variation of new clones of Populus deltoids (I-69) ×Populus euramericana (I-45)[J]. Journal of Zhejiang A&F University, 2004, 21(4): 376-381.
Citation: GUAN Lan-hua, PAN Hui-xin, HUANGMin-ren, SHI Ji-sen. Genetic variation of new clones of Populus deltoids (I-69) ×Populus euramericana (I-45)[J]. Journal of Zhejiang A&F University, 2004, 21(4): 376-381.

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