|Table of Contents|

Biological Characteristics and Toxicity Test of Fungicides on Pathogeny of Lotus Root Rot

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2018年04
Page:
77-81
Research Field:
Publishing date:

Info

Title:
Biological Characteristics and Toxicity Test of Fungicides on Pathogeny of Lotus Root Rot
Author(s):
YIN Xiao1; 2; LI Xiaozun1; 2; XU Guoxin1; 2; YIN Jingjing1; 2; LYU Wentang1; 2; WU Xiu1; 2
1.Shandong Rice Research Institute,Jinan,Shandong 250100;2.Hydrobiology Research Center,Shandong Academy of Agricultural Sciences,Jinan,Shandong 250100
Keywords:
lotus root rot; Phytopythium helicoides; biological characteristic; fungicide
PACS:
-
DOI:
10.11937/bfyy.20172576
Abstract:
The new pathogen of lotus rhizome rot in Shandong Province, Phytopythium helicoides,was used as tested material.The method of mycelium growth rate was applied to study the biological characteristics of P.helicoides and measure the indoor virulence of fungicide on P.helicoides in order to control the lotus root rot.The results showed that P.helicoides could grow well in 15-43 ℃,pH 5-11,best in 35 ℃,pH 7.Among the twelve kinds of tested fungicide,nine of them could effectively inhibit the mycelial growth.Ovraclostrobin?metiram exhibited the highest inhibitory action to P.helicoides whose EC50 value was 85.33 mg?L-1；followed by metalaxyl-M?mancozeb and mancozeb,whose EC50 value were 98.12 mg?L-1 and 193.46 mg?L-1；copper calcium sulphate,azoxystrobin,propamocarb hydrochloride had the lower inhibitory action,whose EC50 value were 1 878.85 mg?L-1,1 119.73 mL?L-1,965.86 mg?L-1,respectively.

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Last Update: 2018-02-24