对不同含水率的松木和杉木进行松材线虫存活率的检测实验，结果发现:(1)不同含水率的木材,在25 ℃和4 ℃下随着处理时间的延长，松材线虫的存活率不断下降；(2)含水率为12.0 %~22.8 %的木材，其中线虫存活率明显低于相同处理时间下未经烘窑烘干含水率为34.4 %~48.0 %的木材；(3)处理6 h后，含水率12.3 %的木材在25 ℃时未查到活虫(即处理木材中的松材线虫均死亡)，在4 ℃时发现仍有5 %的线虫；(4)处理24 h后，经烘窑烘干含水率在22.8 %以下的木材在25 ℃和4 ℃下均未查到活虫，而在未经烘窑烘干含水率47.3 %的木材中仍然查到有47 %的存活线虫。试验初步证实含水率在22.8 %以下的木材不利于线虫的存活和侵染。
Abstract
Survival rate of Bursaphelenchus xylophilus were studied in different moistures of woody packaging material. The results were as follows： As processing time, the survival rate of nematode was declining for wood with different moisture at 25 ℃ and 4 ℃; wood with 12.0 %—22.8 % moisture, in which survival rate of nematode was significantly lower than without dried wood with 34.4 %—48.0 % moisture. After 6 hours treatment, wood with 12.3 % moisture,which was not detected live nematode at 25 ℃(that was to say that nematode had been dead in the treated wood), but 5 % of the nematodes was still detected at 4 ℃. After 24 hours treatment wood with less than 22.8 % moisture could not detected live nematode, while wood with 47.3 % moisture could be found to some of nematode. The experiment confirmed dried wood with less than 22.8 % moisture,in which the nematode was not easy to survive and infect.
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参考文献
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基金
收稿日期：2009-11-10修回日期：2010-05-10基金项目：国家高技术研究发展计划(2001AA249021)；江苏省农业科技自主创新资金项目(CX(10)454)作者简介：王宏宝(1982—),硕士生。*林茂松(通信作者)，教授。Email: linms@njau.edu.cn。引文格式：王宏宝，李艳华，林何燕,等. 不同含水率木质包装材料对松材线虫存活率的影响[J]. 南京林业大学学报:自然科学版,2010,34(5):63-66.
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