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不同马尾松种源对松材线虫病的抗病性(PDF)

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

Issue:
2000年04期
Page:
85-88
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
Studies on Resistance Mechanisms of Masson Pine Provenance Resistance to Pine Wood Nematode (PWN)
Article ID:
1000-2006(2000)04-0085-04
Author(s):
XU Fu yuan 1GE Ming hong 1ZHANG Pei 1ZHAO Zheng dong 2SUN Zhen 2
1.Forestry Research Institute of Jiangsu Province,Nanjing 211153,China; 2.Research Institute of Chemical Processing and Utilization of Forest Products, CAF,Nanjing 210042,China
Keywords:
Masson pine provenance Bursaphelenchus xylophilus Resistance provenance selection
Classification number :
S718;S751
DOI:
10.3969/j.jssn.1000-2006.2000.04.027
Document Code:
A
Abstract:
During 1995~1998, the artificial inoculation test of 40 provenance was carried out to select the resistant masson pine, Pinus massoniana , which were resistant to PWN, Bursaphelenchus xylophilus , in south China. The selection results showed that: The death rate of pathogenesis (DRP) and index of pathogenesis (IP) of three resistant provenance are 0% and 0 respectively. The rate of selection of resistant provenance is 7.5%. The test results also showed that the resistance of 15 year old of 3 selected resistant provenances is stable and reliable.The resistance of masson pine is related to the four main factors that the vigorous growth, the vigorous metabolism, the less content of free amino acid and variant content of second metabolic compounds of GX2, GX3 and GD5 of three provenance were resistant to PWN disease.

References

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Last Update: 1900-01-01