Analysis of Seed Yield Composition in Seed Orchard of Chinese Fir.

Guan Kanglin; Guan Yu.

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Volume 14 Issue 3

May 2019

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Article Navigation > Journal of Zhejiang A&F University > 1997 > 14(3): 213-219

Guan Kanglin, Guan Yu.. Analysis of Seed Yield Composition in Seed Orchard of Chinese Fir.[J]. Journal of Zhejiang A&F University, 1997, 14(3): 213-219.

Citation:

Guan Kanglin, Guan Yu.. Analysis of Seed Yield Composition in Seed Orchard of Chinese Fir.[J]. Journal of Zhejiang A&F University, 1997, 14(3): 213-219.

Analysis of Seed Yield Composition in Seed Orchard of Chinese Fir.

1.
Zhejiang Forestry College, Lin’ an 311300, PRC

Received Date: 1996-08-22
Rev Recd Date: 1997-01-20
Publish Date: 1997-09-20

Abstract

Using the background materials of Chinese fir seed orchard at 1. 5 offspring in Hengfan Forest Farm, an observation was made on the dynamic of individual cone bearing number, the relationship between the colonial structure and the seed yield, cone economic traits and effect of ecological factors. The seed yield in the orchard was chiefly affected by planting density, cone number of each plant , cone weight and seed-extracting percentage. An experimental formula on seed yield was suggested. In 1995, the 10-year seed orchard obtained a seed yield of 243 kg hm- 2. A reasonable colonial structure of bumper harvest was established in existing density of 525 plants hm- 2, crown sensity of 0. 6, averag eset ting numbers of 661. 9 per plant and seed-extracting percentage of 6. 2%.
- Chinese fir (Cunninghamia lanceolata ),
- stand density,
- population,
- cones( plant ),
- seed yield,

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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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Analysis of Seed Yield Composition in Seed Orchard of Chinese Fir.

1. Zhejiang Forestry College, Lin’ an 311300, PRC

Received Date: 1996-08-22
Rev Recd Date: 1997-01-20
Publish Date: 1997-09-20

Key words:

Chinese fir (Cunninghamia lanceolata ) /
stand density /
population /
cones( plant ) /
seed yield /

Abstract: Using the background materials of Chinese fir seed orchard at 1. 5 offspring in Hengfan Forest Farm, an observation was made on the dynamic of individual cone bearing number, the relationship between the colonial structure and the seed yield, cone economic traits and effect of ecological factors. The seed yield in the orchard was chiefly affected by planting density, cone number of each plant , cone weight and seed-extracting percentage. An experimental formula on seed yield was suggested. In 1995, the 10-year seed orchard obtained a seed yield of 243 kg hm- 2. A reasonable colonial structure of bumper harvest was established in existing density of 525 plants hm- 2, crown sensity of 0. 6, averag eset ting numbers of 661. 9 per plant and seed-extracting percentage of 6. 2%.

Guan Kanglin, Guan Yu.. Analysis of Seed Yield Composition in Seed Orchard of Chinese Fir.[J]. Journal of Zhejiang A&F University, 1997, 14(3): 213-219.

Citation:

Guan Kanglin, Guan Yu.. Analysis of Seed Yield Composition in Seed Orchard of Chinese Fir.[J]. Journal of Zhejiang A&F University, 1997, 14(3): 213-219.

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