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苏北杨树黑斑型溃疡病的研究(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2008年04期
Page:
101-104
Column:
研究论文
publishdate:
2008-07-20

Article Info:/Info

Title:
Study on black blotch canker of poplars in north Jiangsu
Article ID:
1000-2006(2008)04-0101-04
Author(s):
WANG Yong WU Xiao-qin*
College of Forest Resources and Environment Nanjing Forestry University, Nanjing 210037, China
Keywords:
Poplar canker disease Pathogen Pathogenic ability
Classification number :
S763.15
DOI:
10.3969/j.jssn.1000-2006.2008.04.023
Document Code:
A
Abstract:
The black blotch canker of poplars which is a new kind of poplar canker disease occurred in north Jiangsu recently. Research on this disease indicated that it was the main death reason of new planted poplars in this area. According to isolation and identification results, this disease could be caused by Fusicoccum aesculi and Phomopsis macrospora. For F. aesculi, the conidium is single, fusiform and the base truncation. Its size is between (17.5--27.5)μm × (4.0--5.5) μm and the average size is 23.5 μm × 4. 5μm. The conidiospores are transparent, which are branching near the bases. Its average size is 21μm~2.0 μm for P. macrospora, two shapes of conidia are found, i.e. fusiform and linear with curved top. Two pathogens which inoculated the stem of the poplars respectively, caused poplar to have little black spots. The mixed inoculation with two pathogens could aggravate the diseases by forming big black blotch.

References

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Last Update: 2013-05-20