|Table of Contents|

Identification of Apple Water Rot Pathogen and Screening of Control Agents

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2025年2
Page:
67-75
Research Field:
Publishing date:

Info

Title:
Identification of Apple Water Rot Pathogen and Screening of Control Agents
Author(s):
SHI Xiaoyan1; SHI Jie2; LI Qianjin3; FENG Hongli4; DING Yuduan1; REN Xiaolin1
(1.College of Horticulture，Northwest A&F University，Yangling，Shaanxi 712100；2.Yan′an Fruit Industry Center，Yan′an，Shaanxi 715700；3.Shaanxi Luochuan County Apple Industry Research and Development Center，Luochuan,Shaanxi 727400;4.Yan′an Fruit Industry Research and Development Center，Luochuan，Shaanxi 727400)
Keywords:
‘Fuji’ apples; water rot disease; biological characteristics; toxicity measurement; pathogen isolation and identification
PACS:
S 661.1
DOI:
10.11937/bfyy.20242686
Abstract:
The apple fruits with water rot in the cold storage of some fruit companies in Luochuan county，Shaanxi Province were used as the test materials.The pathogens were identified by tissue isolation method，and the biological characteristics，variety resistance and fungicide screening of pathogens were carried out to clarify the species of pathogens of ‘Fuji’ apple water rot in Luochuan county，Shaanxi Province，and screen out effective fungicides for the prevention and control of water rot，in order to provide reference for the diagnosis and prevention and control of the disease.The results showed that the pathogens causing water rot of the ‘Fuji’ apple during storage belonged to Basidiomycota，Agaricomycetes，Agaricomycetes，and Campylobacteraceae.The optimum growth temperature of the pathogen was 20-25 ℃ and the optimum pH was 6-7.The results of toxicity measurement showed that the antibacterial effects of different fungicides were different.The best effect was tetramycin and polyoxin，with EC50 value of 0.033 3 μg·mL-1 and 0.037 7 μg·mL-1，respectively.The EC50 value of natamycin was 0.832 5 μg ·mL-1.The effect of kojic acid and chitosan was poor.

References:

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Last Update: 2025-02-08