Volume 18 Issue 3
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WENG Yong-fa, CHEN Yan, WANG Guo-hua, MAO Cheng-feng, ZHU Yun-you. Causes of resinosis of exotic pines and its control method[J]. Journal of Zhejiang A&F University, 2001, 18(3): 286-289.
Citation: WENG Yong-fa, CHEN Yan, WANG Guo-hua, MAO Cheng-feng, ZHU Yun-you. Causes of resinosis of exotic pines and its control method[J]. Journal of Zhejiang A&F University, 2001, 18(3): 286-289.

Causes of resinosis of exotic pines and its control method

  • Received Date: 2000-12-15
  • Rev Recd Date: 2001-04-08
  • Publish Date: 2001-09-20
通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Causes of resinosis of exotic pines and its control method

Abstract: In recent years, pure forests of exotic pines were seriously harmed by resinosis in some areas of Zhejiang. Using the method of plot observation, separation culture, light-microscope examination, electricmicroscope, observation, measurement of trace elements, as well as controlling the disease for harmed pure forests with borax etc. , the disease situation was found out in Zhejiang. Its symptoms could be divided into 3 types: the type of dead terminal leaf buds, the type of bunch branches and the type of spike tops. The resinosis is a physiological disease, and is caused by lack of effective boron content in soil and tree body. Obvious control effect could be obtained by spraying 3.0 gkg-1or 5.0 gkg-1 of borax solution. The disease indexes in control plots decreased by 38.5. The average increment of tree height in control plot is 14.8 cm higher from that in contrast plot.

WENG Yong-fa, CHEN Yan, WANG Guo-hua, MAO Cheng-feng, ZHU Yun-you. Causes of resinosis of exotic pines and its control method[J]. Journal of Zhejiang A&F University, 2001, 18(3): 286-289.
Citation: WENG Yong-fa, CHEN Yan, WANG Guo-hua, MAO Cheng-feng, ZHU Yun-you. Causes of resinosis of exotic pines and its control method[J]. Journal of Zhejiang A&F University, 2001, 18(3): 286-289.

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