Exploring the resilience of wheat crops grown in short rotations through minimising the build-up of an important soil-borne fungal pathogen

A - Papers appearing in refereed journals

Mcmillan, V. E., Canning, G., Moughan, J., White, R. P., Gutteridge, R. J. and Hammond-Kosack, K. E. 2018. Exploring the resilience of wheat crops grown in short rotations through minimising the build-up of an important soil-borne fungal pathogen. Scientific Reports. 8 (9550), pp. 1-13.

AuthorsMcmillan, V. E., Canning, G., Moughan, J., White, R. P., Gutteridge, R. J. and Hammond-Kosack, K. E.
Abstract

Given the increasing demand for wheat which is forecast, cropping of wheat in short rotations will likely remain a common practice. However, in temperate wheat growing regions the soil-borne fungal pathogen Gaeumannomyces tritici becomes a major constraint on productivity. In cultivar rotation field experiments on the Rothamsted Farm we demonstrated a substantial reduction in take-all disease and grain yield increases of up to 2.4 tonnes/ha when a low take-all inoculum building wheat cultivar was grown in the first year of wheat cropping. Phenotyping of 71 modern elite wheat cultivars for the take-all inoculum build-up trait across six diverse trial sites identified a few cultivars which exhibited a consistent lowering of take-all inoculum build-up. However, there was also evidence of a significant interaction effect between trial site and cultivar when a pooled Residual Maximum Likelihood (REML) procedure was conducted. There was no evidence of an unusual rooting phenotype associated with take-all inoculum build-up in two independent field experiments and a sand column experiment. Together our results highlight the complex interactions between wheat genotype, environmental conditions and take-all inoculum build-up and further work is required to determine the underlying genetic and mechanistic basis of this important phenomenon.

Year of Publication2018
JournalScientific Reports
Journal citation8 (9550), pp. 1-13
Digital Object Identifier (DOI)doi:10.1038/s41598-018-25511-8
PubMed ID29934522
Open accessPublished as ‘gold’ (paid) open access
FunderDepartment of Environment, Food and Rural Affairs
Funder project or code20:20 Wheat [ISPG]
Wheat Genetic Improvement Network
[20:20 Wheat] Maximising yield potential of wheat
Publisher's version
Accepted author manuscript
File
Output statusPublished
Publication dates
Online22 Jun 2018
Publication process dates
Accepted29 Mar 2018
PublisherNature Publishing Group
Copyright licenseCC BY
ISSN2045-2322

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