Variation and selection of loblolly-pine provenaces on Changle Forest Farm

Dong Yaoqing; Yu Jianxin; Zhang Jianzhong; Cao Jianshi; Fu Hongyuan

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Volume 15 Issue 4

May 2019

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Article Navigation > Journal of Zhejiang A&F University > 1998 > 15(4): 347-354

Dong Yaoqing, Yu Jianxin, Zhang Jianzhong, Cao Jianshi, Fu Hongyuan. Variation and selection of loblolly-pine provenaces on Changle Forest Farm[J]. Journal of Zhejiang A&F University, 1998, 15(4): 347-354.

Citation:

Dong Yaoqing, Yu Jianxin, Zhang Jianzhong, Cao Jianshi, Fu Hongyuan. Variation and selection of loblolly-pine provenaces on Changle Forest Farm[J]. Journal of Zhejiang A&F University, 1998, 15(4): 347-354.

Variation and selection of loblolly-pine provenaces on Changle Forest Farm

1.
Changle Forest Farm,Yuhang 311123,Zhejiang,PRC

Received Date: 1998-02-14
Publish Date: 1998-12-20

Abstract

There tests were conducted on 40 loblolly-pine provenances in 1982 , 1983 and 1984 respectively.The results demonstrated an obvious variation in tree height , DBH , volume , stem form-factors and survival rate of plantation among different provenances , which resulted mainly from the differences in latitudes and caloricity .Increment of provenances had a heritability of medium degree .A close relation was found existing between 3 characters of increment , but not between increment characters and stem form-factors .Increment in height and DBH of 3 to 5-year-old trees was correlated to those aged over 3 ～5 , which indicated the selection of those 5 years old might be more reliable .Nine fine provenances were selected , with genetic gain ranging between 3.05 % and 20.39 %.
- loblolly-pine (Pinus taeda),
- provenance tests,
- variation (genetics),
- selection,
- heritable parameters

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Variation and selection of loblolly-pine provenaces on Changle Forest Farm

1. Changle Forest Farm,Yuhang 311123,Zhejiang,PRC

Received Date: 1998-02-14
Publish Date: 1998-12-20

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Abstract: There tests were conducted on 40 loblolly-pine provenances in 1982 , 1983 and 1984 respectively.The results demonstrated an obvious variation in tree height , DBH , volume , stem form-factors and survival rate of plantation among different provenances , which resulted mainly from the differences in latitudes and caloricity .Increment of provenances had a heritability of medium degree .A close relation was found existing between 3 characters of increment , but not between increment characters and stem form-factors .Increment in height and DBH of 3 to 5-year-old trees was correlated to those aged over 3 ～5 , which indicated the selection of those 5 years old might be more reliable .Nine fine provenances were selected , with genetic gain ranging between 3.05 % and 20.39 %.

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