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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Dissecting wheat grain yield drivers in a mapping population in the UK
AU - Pennacchi, João
AU - Carmo-Silva, Elizabete
AU - Andralojc, P. John
AU - Feuerhelm, David
AU - Powers, Stephen J.
AU - Parry, Martin Afan John
PY - 2018/6/14
Y1 - 2018/6/14
N2 - Improving crop yields arises as a solution to ensure food security in the future scenarios of growing world population, changes in food consumption patterns, climate change and limitation on resources allocated to agriculture. Defining traits that can be reliable cornerstones to yield improvement and understanding their interaction and influence on yield formation is an important part of ensuring the success of breeding programs for high yield. Traits that can drive yield increases, such as light interception and conversion efficiency, 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 explain 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.
AB - Improving crop yields arises as a solution to ensure food security in the future scenarios of growing world population, changes in food consumption patterns, climate change and limitation on resources allocated to agriculture. Defining traits that can be reliable cornerstones to yield improvement and understanding their interaction and influence on yield formation is an important part of ensuring the success of breeding programs for high yield. Traits that can drive yield increases, such as light interception and conversion efficiency, 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 explain 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.
KW - Wheat
KW - grain yield
KW - resilience
KW - productivity
KW - Triticum aestivum
KW - crop improvement
KW - physiological breeding
KW - photosynthesis
KW - food security
U2 - 10.3390/agronomy8060094
DO - 10.3390/agronomy8060094
M3 - Journal article
VL - 8
JO - Agronomy
JF - Agronomy
SN - 2073-4395
IS - 6
M1 - 94
ER -