Evolution of Some Melon Genotypes for Fusarium oxysporum f. sp. melonis Race 1 and 1.2 Resistance

10.30486/roce.2019.682631

Abstract

Evolution of Some Melon Genotypes for Fusarium oxysporum f. sp. melonis Race 1 and 1.2 Resistance
 
Maryam Golabadi1, Kamran Khezerpoor2, Mojtaba Mahdavi2, Atefeh Nouri2
1- Associate ProfessorPlant Improvement and Seed Production Research Center, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
2. Researcher Plant Improvement and Seed Production Research Center, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
 
*Corresponding author: atefehnouri630@gmail.com
 
Received: 10 May 2019                                             Accepted: 20 June 2019
 
 
 Abstract
 
Fusarium oxysporum is a major wilt pathogen of many economically important crop plants. Four melon genotypes (Isabelle, Ogon9, NBD-929 and NBD-943) were screened for resistance to Fusarium oxysporum f.sp. melonis race 1 and 1. 2 using artificial inoculation procedure. The experiment was conducted in the 2019 cropping season in the research greenhouse of the Islamic Azad University, Khorasgan Branch. The analysis of variance showed significant differences within genotypes, Fusarium spp pathotype and days after inoculation, and their interactions. Isabelle, Ogon9 and NBD-929 had a good performance when inoculated with race 1 and therefore classified as resistance. The line NBD-943 showed more sever susceptibility to race1 comparing to other genotypes. All of evaluated genotypes were susceptible to race 1.2. Finally, the line NBD-929 was considered as a novel and suitable candidate for future resistance to Fusarium race1 in breeding projects of melon.
 
Keywords: Cucumis melo L. Fusarium spp. Disease resistance
 

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