Behavior of Spanish durum wheat genotypes against Zymoseptoria tritici: resistance and susceptibility

Spanish Journal of Agricultural Research

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Title Behavior of Spanish durum wheat genotypes against Zymoseptoria tritici: resistance and susceptibility
 
Creator Porras, Rafael
Pérez-de-Luque, Alejandro
Sillero, Josefina C.
Miguel-Rojas, Cristina
 
Subject Agriculture; Plant Protection
Septoria leaf blotch; plant breeding; foliar disease; germplasm
 
Description Aim of study: Septoria tritici blotch (STB), caused by the fungus Zymoseptoria tritici, is one of the most important wheat diseases worldwide, affecting both bread and durum wheat. The lack of knowledge about the interaction of durum wheat with Z. tritici, together with limited resources of resistant durum wheat material, have both led to a rising threat for durum wheat cultivation, particularly in the Mediterranean Basin. In Spain, STB has increased its incidence in the last few years, leading to higher costs of fungicide applications to control the disease. Therefore, identification of new sources of resistance through wheat breeding stands out as an efficient method of facing STB.Area of study: The experimental study was conducted in growth chambers at the IFAPA facilities in Córdoba (Spain).Material and methods: The percentage of necrotic leaf area, the disease severity, and the pycnidium development through image analysis were evaluated from 48 durum wheat Spanish accessions (breeding lines and commercial cultivars) in growth chambers against an isolate of Z. tritici from Córdoba.Main results: Two breeding lines and six commercial cultivars showed resistant responses by limiting STB development through the leaf or its reproduction ability, while the other 40 accessions presented a susceptible response.Research highlights: Provided these resources of resistance in Spanish durum wheat genotypes, future breeding programs could be developed, incorporating both agronomic traits and resistance to STB.
 
Publisher Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)
 
Contributor Junta de Andalucía
INIA
European Regional Development Fund (AVA.AVA2019.020
RTA2015-00072-C03-02)
 
Date 2021-08-12
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier https://revistas.inia.es/index.php/sjar/article/view/17953
10.5424/sjar/2021193-17953
 
Source Spanish Journal of Agricultural Research; Vol 19, No 3 (2021); e1002
Spanish Journal of Agricultural Research; Vol 19, No 3 (2021); e1002
2171-9292
 
Language eng
 
Relation https://revistas.inia.es/index.php/sjar/article/view/17953/5241
https://revistas.inia.es/index.php/sjar/article/downloadSuppFile/17953/18844
https://revistas.inia.es/index.php/sjar/article/downloadSuppFile/17953/18845
 
Rights info:eu-repo/semantics/openAccess
Copyright (c) 2021 Spanish Journal of Agricultural Research
 

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