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Scientia Silvae Sinicae ›› 1998, Vol. 34 ›› Issue (5): 45-52.

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A COMPARISON STUDY BETWEEN OPEN POLLINATION SEED PROGENY TEST AND CLONAL TEST OF ROBINIA PSEUDOACACIA

Yanlin Zhu1,Tiemin Dong1,Ye Tian1,Chaoran Tong2   

  1. 1. Henan Forestry Research Institute Zhengzhou 450002
    2. Minquan Forest Farm, Henan Province Minquan 476800
  • Received:1996-08-12 Online:1998-09-25 Published:1998-09-25

Abstract:

Testing plantations were planted with clonal and seed progeny in 1983.Both of them are from the same plus trees.When the testing plantations were 12-year-old, the plantations height、diameter at breast height、height of trunk and volume have been tested.The result shows: 1. The coefficient of phenotypic variation of the clone is 76% greater than that of the family. The coefficient of genetic variation of the clone is 70% greater than that of the family; 2. According to being chosen of 20%, the genetic gain of clone is 128% higher than that of family.So the effect of plus tree clonal selection is better than that of plus tree family selection.

Key words: Robinia pseudoacacia, Family, Clone, Coefficient of variation, Absolute gain, Genetic gain