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不同龄级马尾松对松材线虫病抗性的探讨(PDF)

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

Issue:
1994年03期
Page:
27-33
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
STUDY ON THE RESISTANCES OF VARIOUS YEAR CLASSES OF PINUS MASSONIANA TO PINE WOOD NEMATODE (PWN),BVRSAPHEIENCHUS SYLOPHILUS
Article ID:
1000-2006(1994)03-0027-07
Author(s):
Xu Fuyuan; Xi Ke(Forestry Research Institute of Jiangsu Province Naming 211153)Xu Gang(Research Institute of Chemical Orocessing and Utilhation of Foeest Products CAF)Zhou Yuansheng; Xu Wengli; Xu Keqing Ge Minghong
Forestry Management Bureau of Jiangsu Province
Keywords:
:Bursaphelenchus xylophilusResistanceTerpeneResin acids
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1994.03.005
Document Code:
A
Abstract:
Artificial inoculation tests are conducted on Masson pine of different ages and growth vigorwith PWN severed from the adults of Monochamus alternatus and cultured by Botrytis cinerea on PDA.Results showed that young Masson pine(under 14 years) with exuberant growth vigor has strong resistance to PWN, but pine over 16 year-old and with weak growth vigor──with middle, mature andover-mature Masson pine sound──has nonresistunce to PWN.Masson pine over 16 years has strongnegative correlations betweent age class and resistuncibility. Some terpene fractions and resin acid composition of different-aged Masson pine correlated with the resistance against PWN.The test resultsshowed that the content of longifolene,2-copaene and dehydroabietic acid increased with Masson’spine age, showing a negative correlation with resistance against PWN.Young Masson’s pine with highresistance has no 2-copanene and low content of longifolene and dehydroabietic acid. As the Masson’spine age increased the content of β-pinene, monoterpene and abietic-type resin decreased, showing apositive correlation with the resistance against PWN. Young Masson pine with high resistance has highcontent of β-pinene, monoterpene and abietic-type resin acid. Similar resultS were obtained from theculturing PWN on PDA of Botrytis cinerea by using the several compounds above.High content of β-pinene, monoterpene and abietic-type resin acid and low content of longifolene and dehydroabietic acid(the young Masson’s Pine have) can curtail PWN’s propegation.

References

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Last Update: 1900-01-01