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Plant Pathology Journal

Year: 2006 | Volume: 5 | Issue: 2 | Page No.: 157-160
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Authors

H. Kavak

E. Boydak

Keywords

Research Article

Screening of the Resistance Levels of 26 Sesame Breeding Lines to Fusarium Wilt Disease

H. Kavak and E. Boydak
Resistance levels of 26 sesame breeding lines derived from 3 different provinces within South-eastern Anatolia district of Turkey were screened against sesame wilt disease caused by Fusarium oxysporium fsp. sesami. Pathogen was isolated from the roots of infected plants. Pathogenicity tests were performed on two local line under controlled condition. Resistance levels of genotypes were assessed in field experiments established on an area known contaminated by F. oxysporium fsp. sesami for the last five years. Associated with the resistance levels great differences were observed on breeding lines. According to the mean data of two years, Sanliurfa-63189 was the most resistant genotype with the 6.6% infection rate and the 1st scale value. Half of the breeding lines displayed this disease at the level of below of 20% infection rate and was recognized in the resistant category. Infection rates of five lines within this group was lower than 10%. The most susceptible genotype was Sanliurfa-63283 local line with the average of 40.8% infection rate and the 3rd scale value. It is considered breeding lines in resistant category may include the resistance genes of the sesame to the Fusarium wilt disease.
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