Abstract

Crop yield has been a major target of plant breeding, although resistance and quality have also been important. The current climate change is calling for breeding actions to mitigate greenhouse gas (GHG) emissions. The present review focuses on opportunities from plant breeding to mitigate climate change while simultaneously securing yield and food requirements, as exemplified by winter wheat cultivation in Northern Europe. Therefore, we review the history of traditional plant breeding, the impact of climate change on crops and implications for plant breeding, opportunities to use plant breeding as a tool to mitigate climate change, and then we assess the estimated mitigation effects from plant breeding and discuss their impact on climate effects. Nitrogen uptake efficiency (NUpE) was indicated as the character with the highest potential to contribute to climate change mitigation, with positive effects also from increased straw length and stubble heights, while increased total biomass yield (root or above-ground) showed less effect. In addition to contributing to climate change mitigation, NUpE might increase profitability for growers and decrease nitrogen leakage from agricultural fields. An increase in NUpE by 15% through plant breeding has the potential to result in reduced GHG emissions corresponding to 30% of the fossil fuel use in agriculture in Sweden.

Keywords

carbon sequestration; crop production; greenhouse gas emissions; nutrient use efficiency; sustainability

Published in

Sustainability
2023, Volume: 15, number: 16, article number: 12349

SLU Authors

• Johansson, Eva

  • Department of Plant Breeding, Swedish University of Agricultural Sciences
    

• Muneer, Faraz

  • Department of Plant Breeding, Swedish University of Agricultural Sciences
    

• Prade, Thomas

  • Department of Biosystems and Technology, Swedish University of Agricultural Sciences
    

Sustainable Development Goals

Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation
Ensure sustainable consumption and production patterns
End hunger, achieve food security and improved nutrition and promote sustainable agriculture


UKÄ Subject classification

Agricultural Science


Publication identifier

DOI: https://doi.org/10.3390/su151612349

Permanent link to this page (URI)

https://res.slu.se/id/publ/123436