Yield Potential

Foulkes, M. J.; Molero, Gemma; Griffiths, Simon; Slafer, Gustavo A.; Reynolds, Matthew

doi:10.1007/978-3-030-90673-3_21

Wheat Improvement 2022

DOI: 10.1007/978-3-030-90673-3_21

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Yield Potential

M. J. Foulkes

Gemma Molero²,

Simon Griffiths

et al.

Abstract: This chapter provides an analysis of the processes determining the yield potential of wheat crops. The structure and function of the wheat crop will be presented and the influence of the environment and genetics on crop growth and development will be examined. Plant breeding strategies for raising yield potential will be described, with particular emphasis on factors controlling photosynthetic capacity and grain sink strength.

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Wheat crop traits conferring high yield potential may also improve yield stability under climate change

Stella,

Webber,

Eyshi Rezaei

et al. 2023

In Silico Plants

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Increasing genetic wheat yield potential is considered as critical to increasing global wheat yields and production, baring major changes in consumption patterns. Climate change challenges breeding by making target environments less predictable, altering regional productivity and potentially increasing yield variability. Here we used a crop simulation model solution in the SIMPLACE framework to explore yield sensitivity to select trait characteristics (radiation use efficiency, fruiting efficiency and light extinction coefficient) across 34 locations representing the world’s wheat-producing environments, determining their relationship to increasing yields, yield variability and cultivar performance. The magnitude of the yield increase was trait-dependent and differed between irrigated and rainfed environments. Radiation use efficiency had the most prominent marginal effect on yield, which increased by about 45% and 33% in irrigated and rainfed sites, respectively, between the minimum and maximum value of the trait. Altered values of light extinction coefficient had the least effect on yield levels. Higher yields from improved traits were generally associated with increased inter-annual yield variability (measured by SD), but the relative yield variability (as coefficient of variation) remained largely unchanged between base and improved genotypes. This was true under both current and future climate scenarios. In this context, our study suggests higher wheat yields from these traits would not increase climate risk for farmers and the adoption of cultivars with these traits would not be associated with increased yield variability.

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Wheat crop traits conferring high yield potential may also improve yield stability under climate change

Stella,

Webber,

Eyshi Rezaei

et al. 2023

In Silico Plants

View full text Add to dashboard Cite

show abstract

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Yield Potential

Cited by 1 publication

References 40 publications

Wheat crop traits conferring high yield potential may also improve yield stability under climate change

Wheat crop traits conferring high yield potential may also improve yield stability under climate change

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