[1]张治宇,张克云,林茂松,等.不同松材线虫群体对黑松的致病性测定[J].南京农业大学学报,2002,25(2):43-46.[doi:10.7685/j.issn.1000-2030.2002.02.010]
 ZHANG Zhi yu,ZHANG Ke yun,LIN Mao song,et al.Pathogenicity determination of Bursaphelenchus xylophilus isolates to Pine thunbergii[J].Journal of Nanjing Agricultural University,2002,25(2):43-46.[doi:10.7685/j.issn.1000-2030.2002.02.010]
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不同松材线虫群体对黑松的致病性测定()
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《南京农业大学学报》[ISSN:1000-2030/CN:32-1148/S]

卷:
25卷
期数:
2002年2期
页码:
43-46
栏目:
出版日期:
2002-05-30

文章信息/Info

Title:
Pathogenicity determination of Bursaphelenchus xylophilus isolates to Pine thunbergii
作者:
张治宇张克云林茂松罗宏伟徐福元
南京农业大学农业部病虫监测与治理重点开放实验室,江苏南京,210095;江苏省林业科学研究院,江苏南京,211153
Author(s):
ZHANG Zhi yu ZHANG Ke yun LIN Mao song LUO Hong wei XU Fu yuan
Key Laboratory of Monitoring, Management of Plant Disease, Insects, Ministry of Agriculture, Nanjing Agric Univ, Nanjing 210095, China; Jiangsu Academy of Forest
关键词:
松材线虫 致病力 黑松
Keywords:
Bursaphelenchus xylophilus pathogenicity Pinus thunbergii
分类号:
S763.421
DOI:
10.7685/j.issn.1000-2030.2002.02.010
文献标志码:
A
摘要:
测定了中国、日本、加拿大的松材线虫 (Bursaphelenchusxylophilus) 群体对 3~ 4年生黑松的致病性 ,发现它们的致病力有明显分化。松材线虫不同群体致黑松的死亡率为 0~ 87 5 % ,RHS系数为 0~ 110不等。中国松材线虫群体致病力高于日本和加拿大群体 ,其中以中国的BxCN1、BxCN3、BxCSC和BxCZD 4个群体致病力最强 ,致枯率均为 87 5 % ,RHS系数均大于 90。在致枯率为 87 5 %的 6个群体中 ,南京的群体BxCN3平均死亡天数最短 (38d)。在全部测试群体中 ,Bx CZD的死亡历期最短 (14d)。试验发现接种松材线虫的松苗有带虫不表现症状的现象 ,这对于病害的传播非常重要。
Abstract:
The pathogenicity of Bursaphelenchus xylophilus isolates from China, Japan and Canada with 3 to 4 year black pine(Pinus thunbergii)seedlings was determined. The results showed that their pathogenicity differed from one another. The mortality of black pine ranged from 0 to 87 5%, and the RHS index 0 to 110.The pathogenicity of isolates from China was greater than that of strains from Japan and Canada. Pathogenicity of BxCN1?BxCN3?BxCSC and BxCZD is lated from China was stronger, with a mortality of 87 5% and the RHS index more than 90.In the 6 isolates whose dead rates were 87 5%, the BxCN3 population from Nanjing averaged the shortest death time of 38 days. In all of tested populations, the dead process of the population BxCZD from Zhejiang was slowest being 14 days in black pine. Latent infection without obvious symptom was found in pine tree seedlings inoculated with the pathogen;it is important for the disease to spread.

参考文献/References:

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备注/Memo

备注/Memo:
江苏省科委科技攻关项目(BE99359)
更新日期/Last Update: 2002-05-30