|Table of Contents|

Biological Characteristic of Colletotrichum truncatum on Begonia semperflorens and Screening of Biocontrol Factors

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2021年10
Page:
66-71
Research Field:
Publishing date:

Info

Title:
Biological Characteristic of Colletotrichum truncatum on Begonia semperflorens and Screening of Biocontrol Factors
Author(s):
ZHANG Baoqing1; 2; ZHAI Yaxin1; XUE Lifang1; CAO Hui1; HAO Xiaojuan1
(1.College of Plant Protection，Shanxi Agricultural University，Taigu,Shanxi 030801；2.Branch of Landscaping，Datong Coal Group Corp，Datong，Shanxi 037003)
Keywords:
Begonia semperflorens; Colletotrichum truncatum; biological characteristics; plant extracts; screening
PACS:
-
DOI:
10.11937/bfyy.20202508
Abstract:
Colletotrichum truncatum causing anthracnose of Begonia semperflorens was used as experimental material.The effects of different temperatures，pH，carbon and nitrogen sources on the growth and spore germination of C.truncatum were determined by growth rate and spore germination methods.The inhibition of 14 kinds of plant extracts on C.truncatum were determined by growth rate method.Biological characteristics of the pathogen were studied and the plant extracts with antifungal activity were screened,in order to provide a reference for disease control.The results showed that the most suitable growth temperature for C.truncatum was 25-30 ℃ and pH 7.The optimum carbon source was glucose and the best nitrogen sources were sodium nitrate and glycine.The optimum temperature for conidia germination was 30-35 ℃ and pH 6-7.The inhibition rates of extract of Syzygium aromaticum，Acorus tatarinowii，Fructus cnidii at the concentration of 2.0 mg?mL-1 were 100%，92% and 90%，respectively.The inhibition rates of other plant extracts were between 20% and 85%.

References:

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Last Update: 2021-08-09