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Identification of the Pathogen of Sclerotiniose on Gaillardia pulchella  and Screening of Antagonistic Trichoderma Strain(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2012年05期
Page:
142-145
Research Field:
Publishing date:

Info

Title:
Identification of the Pathogen of Sclerotiniose on Gaillardia pulchella  and Screening of Antagonistic Trichoderma Strain
Author(s):
LIU Wei; YE Yun-feng; LI Lin-xuan; JIANG Ni; LIU Li-hui
Guangxi Botanical Garden of Medicinal Plant，Guangxi Medicinal Resources Conservation and Genetic Improvement Laboratory，Nanning，Guangxi 530023
Keywords:
Gaillardia pulchella; sclerotiniose; identification of the pathogen; antagonistic Trichoderma strain; screen
PACS:
S 482.2+92
DOI:
-
Abstract:
The pathogen was identified based on pathogenicity，disease symptom，cultivation characters and morphology.The antagonistic Trichoderma strain was screened by antagonistic ability tests in vitroand pot experiments.The results showed that pathogen of sclerotiniose on Gaillardia pulchella was identified as Sclerotinia sclerotiorum (Lib) de Bary.Trichoderma harzianum H5 gave the strongest antagonistic ability in vitro and highest control efficiency in pot experiments.Its antagonistic index and control efficiency were Ⅰand 93.2%，respectively.Among the five tested Trichoderma strains，Trichoderma harzianum H5 had the best control potential for controlling the sclerotiniose on Gaillardia pulchella.

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Last Update: 2014-08-28