Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《SCIENTIA SILVAE SINICAE》 2000-01
Add to Favorite Get Latest Update

INDUCED CHEMICAL DEFENSES AND DELAYED INDUCED RESISTANCE OF PINUS TABULAEFORMIS CARR.TO DENDROLIMUS SPECTABILIS BUTLER

Li Zhenyu\ Wang Yan\ Chen Huasheng\ Xu Zhichu\ Lu Yongbo (Beijing Forestry University\ Beijing100083)  
According to chemical analysis and bioassay of one\|year needles of the damaged and undamaged Pinus tabulaeformis Carr.and larvae of Dendrolimus spectabilis Butler fed on these needles,it was found that the chemical components in the needles of damaged pine had caused regarded growth compared with undamaged pine.The results shows that:(1) total amino acids and most amino acids declined in quantity;(2) the concentrations of soluble sugar,crude fat,alkaloid and ratio of total sugar to total amino acids all increased;(3) there were conspicuous changes in fatty acid and phenolics.(4) weights of the larvae fed on needles of damaged trees were lighter than undamaged trees;and (5) mortality of larvae fed on these needles was 19.2% higher than those fed on leaves of undamaged trees.Delayed induced resistance of Pinus tabulaeformis Carr.to Dendrolimus spectabilis Butler lasted for half a year at least.
【Fund】: 国家自然科学基金!资助号码923029
【CateGory Index】: S763.712.54
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved