Use of antagonists and alternative products to manage post-harvest soft rot in pepper

被引:7
作者
Silva, Matheus Silva E. [1 ]
Queiroz Carvalho, Francisco Conrado [1 ]
da Silva, Jessica Rodrigues [1 ]
de Oliveira Lins, Severina Rodrigues [1 ]
Alves de Oliveira, Sonia Maria [1 ]
机构
[1] Univ Fed Rural Pernambuco, Dept Agron, BR-52171900 Recife, PE, Brazil
来源
REVISTA CIENCIA AGRONOMICA | 2014年 / 45卷 / 04期
关键词
Pectobacterium carotovorum subsp carotovorum; Biological control; Alternative control; Phytopathology; BIOLOGICAL-CONTROL; PHOSPHITE; RESISTANCE; STRAINS; MOLD;
D O I
10.1590/S1806-66902014000400009
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
For the control of soft rot caused by Pectobacterium carotovorum subsp. carotovorum (Pcc) in chili, 10 treatments were evaluated: Bacillus spp.: isolated C116 (B. pumilus); Yeasts: isolated Lma (Rhodotorula aurantiaca) and Lms (R. glutinis); Potassium phosphite and calcium, calcium sources: CaCl2, Ca (CO3) 2 and Ca (SO4) 2; fungicidal/bactericidal organic Antica (R); Kasumin (R) antibiotic. After determining the concentration of the antagonist and alternative products by antibiogram testing, testing was performed in vivo by pathogen inoculation, six hours after treatment with antagonists and alternative products. We determined the Incubation Period (PI), severity of illness (SEV), reduction of disease severity (RSD%) and area under the disease progress curve (AUDPC). All treatments showed higher PI and RSD% and lower values of SEV and AUDPC compared to the control. Calcium phosphite, C116, Lms, Lma and potassium phosphite were significantly higher when compared to other treatments. Pcc was resistant Kasumin (R), possessing SEV and AUDPC did not differ significantly from control.
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页码:718 / 725
页数:8
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