Breeding progress for pathogen resistance is a second major driver for yield increase in German winter wheat at contrasting N levels

Abstract Breeding has substantially increased the genetic yield potential, but fungal pathogens are still major constraints for wheat production. Therefore, breeding success for resistance and its impact on yield were analyzed on a large panel of winter wheat cultivars, representing breeding progres...

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Autores principales:	Holger Zetzsche, Wolfgang Friedt, Frank Ordon
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e35651c312944187ba5c0888048db0b5
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spelling	oai:doaj.org-article:e35651c312944187ba5c0888048db0b52021-12-02T15:09:41ZBreeding progress for pathogen resistance is a second major driver for yield increase in German winter wheat at contrasting N levels10.1038/s41598-020-77200-02045-2322https://doaj.org/article/e35651c312944187ba5c0888048db0b52020-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-77200-0https://doaj.org/toc/2045-2322Abstract Breeding has substantially increased the genetic yield potential, but fungal pathogens are still major constraints for wheat production. Therefore, breeding success for resistance and its impact on yield were analyzed on a large panel of winter wheat cultivars, representing breeding progress in Germany during the last decades, in large scale field trials under different fungicide and nitrogen treatments. Results revealed a highly significant effect of genotype (G) and year (Y) on resistances and G × Y interactions were significant for all pathogens tested, i.e. leaf rust, strip rust, powdery mildew and Fusarium head blight. N-fertilization significantly increased the susceptibility to biotrophic and hemibiotrophic pathogens. Resistance was significantly improved over time but at different rates for the pathogens. Although the average progress of resistance against each pathogen was higher at the elevated N level in absolute terms, it was very similar at both N levels on a relative basis. Grain yield was increased significantly over time under all treatments but was considerably higher without fungicides particularly at high N-input. Our results strongly indicate that wheat breeding resulted in a substantial increase of grain yield along with a constant improvement of resistance to fungal pathogens, thereby contributing to an environment-friendly and sustainable wheat production.Holger ZetzscheWolfgang FriedtFrank OrdonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-17 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Holger Zetzsche Wolfgang Friedt Frank Ordon Breeding progress for pathogen resistance is a second major driver for yield increase in German winter wheat at contrasting N levels
description	Abstract Breeding has substantially increased the genetic yield potential, but fungal pathogens are still major constraints for wheat production. Therefore, breeding success for resistance and its impact on yield were analyzed on a large panel of winter wheat cultivars, representing breeding progress in Germany during the last decades, in large scale field trials under different fungicide and nitrogen treatments. Results revealed a highly significant effect of genotype (G) and year (Y) on resistances and G × Y interactions were significant for all pathogens tested, i.e. leaf rust, strip rust, powdery mildew and Fusarium head blight. N-fertilization significantly increased the susceptibility to biotrophic and hemibiotrophic pathogens. Resistance was significantly improved over time but at different rates for the pathogens. Although the average progress of resistance against each pathogen was higher at the elevated N level in absolute terms, it was very similar at both N levels on a relative basis. Grain yield was increased significantly over time under all treatments but was considerably higher without fungicides particularly at high N-input. Our results strongly indicate that wheat breeding resulted in a substantial increase of grain yield along with a constant improvement of resistance to fungal pathogens, thereby contributing to an environment-friendly and sustainable wheat production.
format	article
author	Holger Zetzsche Wolfgang Friedt Frank Ordon
author_facet	Holger Zetzsche Wolfgang Friedt Frank Ordon
author_sort	Holger Zetzsche
title	Breeding progress for pathogen resistance is a second major driver for yield increase in German winter wheat at contrasting N levels
title_short	Breeding progress for pathogen resistance is a second major driver for yield increase in German winter wheat at contrasting N levels
title_full	Breeding progress for pathogen resistance is a second major driver for yield increase in German winter wheat at contrasting N levels
title_fullStr	Breeding progress for pathogen resistance is a second major driver for yield increase in German winter wheat at contrasting N levels
title_full_unstemmed	Breeding progress for pathogen resistance is a second major driver for yield increase in German winter wheat at contrasting N levels
title_sort	breeding progress for pathogen resistance is a second major driver for yield increase in german winter wheat at contrasting n levels
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/e35651c312944187ba5c0888048db0b5
work_keys_str_mv	AT holgerzetzsche breedingprogressforpathogenresistanceisasecondmajordriverforyieldincreaseingermanwinterwheatatcontrastingnlevels AT wolfgangfriedt breedingprogressforpathogenresistanceisasecondmajordriverforyieldincreaseingermanwinterwheatatcontrastingnlevels AT frankordon breedingprogressforpathogenresistanceisasecondmajordriverforyieldincreaseingermanwinterwheatatcontrastingnlevels
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Breeding progress for pathogen resistance is a second major driver for yield increase in German winter wheat at contrasting N levels

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