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Volume 3 Issue 5
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Article Navigation >  Forest Research  > 1990 >  3(5): 470-475

Citation:
shu

STUDY ON GROWTH LOSS MODEL OF YOUNG POPLAR CAUSED BY DOTHORELLA GREGRARIA

  • 1.

    The Research Institute of Forest Resource Information Techniques CAF

  • 2.

    The Research Institute of Forestry CAF

  • 3.

    Forestry Research Institute of Tielin City, Liaoning Province

  • Received Date: 1990-03-27
  • A kind of suitable regressive model was found in the research of growth loss of young poplars infected by Dothorella gregraria. Statistical examination showed that the models have higher interrelation between variables, less residuals and better regressive curved lines than many other tested models. Besides, the models can exactly describe biological regularity of growth change. The results are of importance for some production departments to predict the growth and yield loss caused by some plant diseaes, master prevention indices and estimate economic benifits.
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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STUDY ON GROWTH LOSS MODEL OF YOUNG POPLAR CAUSED BY DOTHORELLA GREGRARIA

  • 1. The Research Institute of Forest Resource Information Techniques CAF
  • 2. The Research Institute of Forestry CAF
  • 3. Forestry Research Institute of Tielin City, Liaoning Province
  • Received Date: 1990-03-27
  • Available Online: 2012-12-04

Abstract: A kind of suitable regressive model was found in the research of growth loss of young poplars infected by Dothorella gregraria. Statistical examination showed that the models have higher interrelation between variables, less residuals and better regressive curved lines than many other tested models. Besides, the models can exactly describe biological regularity of growth change. The results are of importance for some production departments to predict the growth and yield loss caused by some plant diseaes, master prevention indices and estimate economic benifits.

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