杨树溃疡病及松材线虫病对树体干部电指标的影响

doi:10.11707/j.1001-7488.20061212

林业科学 ›› 2006, Vol. 42 ›› Issue (12): 68-72.doi: 10.11707/j.1001-7488.20061212

杨树溃疡病及松材线虫病对树体干部电指标的影响

梁军屈智巍刘惠文贾秀贞张星耀

中国林业科学研究院森林生态环境与保护研究所国家林业局森林保护学与森林生态环境重点实验室,北京100091

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2006-12-25 发布日期:2006-12-25

Studies on Influence of Poplar Canker and Pine Wood Nematode on the Electrical Indexes of Tree Stem

Liang Jun,Qu Zhiwei,Liu Huiwen,Jia Xiuzhen,Zhang Xingyao

Research Institute of Forest Ecology, Environment and Protection, CAF Key Laboratory of Forest Protection and Ecology Environment of State Forestry Administration Beijing 100091

Received:1900-01-01 Revised:1900-01-01 Online:2006-12-25 Published:2006-12-25

摘要/Abstract

摘要：

对杨树溃疡病及松材线虫病对树木电指标的影响进行研究。结果表明:杨树溃疡病胁迫下,毛白杨扦插苗POD酶活性先增大后减小,PPO酶活性持续增大,树木干部电容和单位电容呈减小趋势,而树木干部阻抗呈增大趋势,最先表现出统计学差异性的指标是POD酶活性,其次为树木干部电容,之后为树体干部阻抗,最后是PPO酶活性;树木干部电容和单位电容与马尾松枯针率均有显著的正相关关系,同时利用树体干部电容0.5nF为阈值,判断马尾松是否感染松材线虫的准确率可达89.26%。

关键词: 树体干部电容, 树体干部阻抗, 杨树溃疡病, 松材线虫病

Abstract:

The paper studied the influence of biological stresses including poplar canker and pine wood nematode on the electrical indexes of trees. The results showed that the activity of peroxidase (POD) increased and then decreased, activity of polyphenoloxidase (PPO) and tree stem impedance increased gradually, tree stem capacitance and unit capacitance decreased after Populus tomentosa cuttings was infected with Botryosphaeria dothidea. The statistical difference of activity of POD was showed earlier than tree stem capacitance, while the difference of tree stem capacitance was showed earlier than activity of PPO. Tree stem capacitance and unit capacitance had significant positive correlation with the ratio of wilt needles to all needles. The accuracy rate could reach 89.26% when 0.5 Nf threshold of tree capacitance was used to estimate whether the Pinus massoniana was infected with Bursaphelenchus xylophilus.

Key words: tree stem capacitance, tree stem impedance, poplar canker, pine wood nematode

梁军屈智巍刘惠文贾秀贞张星耀. 杨树溃疡病及松材线虫病对树体干部电指标的影响[J]. 林业科学, 2006, 42(12): 68-72.

Liang Jun;Qu Zhiwei;Liu Huiwen;Jia Xiuzhen;Zhang Xingyao. Studies on Influence of Poplar Canker and Pine Wood Nematode on the Electrical Indexes of Tree Stem[J]. Scientia Silvae Sinicae, 2006, 42(12): 68-72.

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杨树溃疡病及松材线虫病对树体干部电指标的影响

Studies on Influence of Poplar Canker and Pine Wood Nematode on the Electrical Indexes of Tree Stem

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