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Scientia Silvae Sinicae ›› 1999, Vol. 35 ›› Issue (5): 34-37.

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THE RELATIONSHIP BETWEEN CROWN CHARACTERISTICS AND STEMWOOD GROWTH OF NEW POPLAR CLONES

Huogen Li,Minren Huang   

  1. Lab.of Forest Tree Genetics and Gene Engineering, Nanjing Forestry University Nanjing210037
  • Received:1997-01-07 Online:1999-09-25 Published:1999-09-25

Abstract:

The relationship between crown characteristics and stemwood growth was explored based on the investigation of 12 five-year-old poplar hybrid F1 clones.The stemwood growth (D 2 H) was positively related to total leaf area (TLA), surface area of crown (TCA) and crown shape ratio (CSR), but negatively related to leaf area index (LAI) and crown layer density (CLD).In the vertical distribution of crown foliage, the upper and middle layers were the determinants on stemwood growth, while in the horizontal distribution, the inner and outer parts had great contributions on stemwood production.In the end of this paper, a reasonable crown characteristics structure for this poplar population was outlined.

Key words: Poplar, Crow n characteristics, Correlation, Path analysis