Dissecting Wheat Grain Yield Drivers in a Mapping Population in the UK

A - Papers appearing in refereed journals

Pennacchi, J. P., Carmo-Silva, E., Andralojc, P. J., Feuerhelm, D,, Powers, S. J. and Parry, M. A. J. 2018. Dissecting Wheat Grain Yield Drivers in a Mapping Population in the UK. Agronomy. 8 (6), p. 94.

AuthorsPennacchi, J. P., Carmo-Silva, E., Andralojc, P. J., Feuerhelm, D,, Powers, S. J. and Parry, M. A. J.
Abstract

Improving crop yields arises as a solution to ensure food security in the future scenarios of a growing world population, changes in food consumption patterns, climate change, and limitations on resources allocated to agriculture. Defining traits that can be reliable cornerstones to yield improvement and understanding of their interaction and influence on yield formation is an important part of ensuring the success of breeding programs for high yields. Traits that can drive yield increases, such as light interception and conversion efficiency, as well as carbon assimilation and allocation, were intensively phenotyped in a double-haploid wheat mapping population grown under field conditions in the UK. Traits were analysed for their correlation to yield, genetic variation, and broad-sense
heritability. Canopy cover and reflectance, biomass production, and allocation to stems and leaves, as well as flag leaf photosynthesis at a range of light levels measured pre- and post-anthesis correlated with plant productivity and contributed to explaining different strategies of wheat lines to attain high grain yields. This research mapped multiple traits related to light conversion into biomass. The findings highlight the need to phenotype traits throughout the growing season and support the approach of targeting photosynthesis and its components as traits for breeding high yielding wheat.

KeywordsTriticum aestivum; Crop improvement; Physiological breeding; Photosynthesis; Productivity; Food security
Year of Publication2018
JournalAgronomy
Journal citation8 (6), p. 94
Digital Object Identifier (DOI)doi:10.3390/agronomy8060094
Open accessPublished as ‘gold’ (paid) open access
FunderBiotechnology and Biological Sciences Research Council
Funder project or code[20:20 Wheat] Maximising yield potential of wheat
Designing Future Wheat (DFW) [ISPG]
DFW - Designing Future Wheat - Work package 1 (WP1) - Increased efficiency and sustainability
Publisher's version
Output statusPublished
Publication dates
Online14 Jun 2018
Publication process dates
Accepted12 Jun 2018
PublisherMDPI
Copyright licenseCC BY
ISSN2073-4395

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