|Table of Contents|

Resistance Identification of Pepper Germplasm Resources Against Pepper Anthracnose and Drug Sensitivity Analysis in Colletotrichum scovillei

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年21
Page:
1-8
Research Field:
Publishing date:

Info

Title:
Resistance Identification of Pepper Germplasm Resources Against Pepper Anthracnose and Drug Sensitivity Analysis in Colletotrichum scovillei
Author(s):
WANG Peixian1; LI Zhengnan1; ZHANG Lei1; FU Chongyi2; WANG Yong2; SUN Pingping1
(1.College of Horticulture and Plant Protection,Inner Mongolia Agricultural University,Hohhot,Inner Mongolia 010018；2.Vegetable and Flower Institute,Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot,Inner Mongolia 010031)
Keywords:
pepper germplasm resources; anthracnose; resistance identification; drug sensitivity test
PACS:
-
DOI:
doi：10.11937/bfyy.20221299
Abstract:
Taking pepper as test material,the resistance of 31 germplasm resources to anthracnose was studied by needle inoculation method,and the sensitivity of Colletotrichum scovillei to 19 drugs was studied by mycelial growth rate method,in order to provide reference for pepper resistance breeding and the application of drugs during the occurrence of anthracnose in Inner Mongolia.The results showed that among 31 germplasm resources,no high resistance variety was found,‘C79-1-1’‘C167’‘Beixing No.9’ showed the moderate resistance to pepper anthracnose,accounting for 9.68%.Seven varieties namely ‘C169-1-1’‘Beixing No.5’‘C289’ ‘C168-1-1’ ‘C197’ ‘C252’ ‘C188’ were moderate susceptible,the other 21 varieties were all high susceptible to anthracnose disease.Among 19 fungicides detected,pyraclostrobin showed the highest control effect on C.scovillei,with EC50 value as 5.966 7×10-15 mg·L-1,difenoconazole,prochloraz and tebuconazole also showed high control effect on C.scovillei,with EC50 values as 1.583 3×10-8 mg·L-1,1.400 1×10-7 mg·L-1,2.838 7×10-7 mg·L-1.Fenaminosulf had the lowest inhibitory effect,with EC50 value as 2 578.448 2 mg· L-1,the EC50 value of chloroisobromine cyanuric acid and metalaxyl·hymexazol were 978.523 9 mg·L-1 and 76.794 8 mg·L-1,which also showed very low inhibitory effect on anthracnose.

References:

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Last Update: 2023-01-16