Breeding improves wheat productivity under contrasting agrochemical input levels
- 17 June 2019
- journal article
- research article
- Published by Springer Science and Business Media LLC in Nature Plants
- Vol. 5 (7), 706-714
- https://doi.org/10.1038/s41477-019-0445-5
Abstract
The world cropping area for wheat exceeds that of any other crop, and high grain yields in intensive wheat cropping systems are essential for global food security. Breeding has raised yields dramatically in high-input production systems; however, selection under optimal growth conditions is widely believed to diminish the adaptive capacity of cultivars to less optimal cropping environments. Here, we demonstrate, in a large-scale study spanning five decades of wheat breeding progress in western Europe, where grain yields are among the highest worldwide, that breeding for high performance in fact enhances cultivar performance not only under optimal production conditions but also in production systems with reduced agrochemical inputs. New cultivars incrementally accumulated genetic variants conferring favourable effects on key yield parameters, disease resistance, nutrient use efficiency, photosynthetic efficiency and grain quality. Combining beneficial, genome-wide haplotypes could help breeders to more efficiently exploit available genetic variation, optimizing future yield potential in more sustainable production systems.Keywords
This publication has 32 references indexed in Scilit:
- Global food demand and the sustainable intensification of agricultureProceedings of the National Academy of Sciences of the United States of America, 2011
- Ridge Regression and Other Kernels for Genomic Selection with R Package rrBLUPThe Plant Genome, 2011
- Genetic diversity trends in twentieth century crop cultivars: a meta analysisTheoretical and Applied Genetics, 2010
- Analysing nitrogen responses of cereals to prioritize routes to the improvement of nitrogen use efficiencyJournal of Experimental Botany, 2009
- Computing Heritability and Selection Response From Unbalanced Plant Breeding TrialsGenetics, 2007
- Improving Nitrogen Use Efficiency for Cereal ProductionAgronomy Journal, 1999
- A SUPERIORITY MEASURE OF CULTIVAR PERFORMANCE FOR CULTIVAR × LOCATION DATACanadian Journal of Plant Science, 1988
- Current status of crop plant germplasmCritical Reviews in Plant Sciences, 1983
- Analysis of Gene Diversity in Subdivided PopulationsProceedings of the National Academy of Sciences of the United States of America, 1973
- THE PROBABLE ERROR OF A MEANBiometrika, 1908