Assessing yield gap in high productive countries by designing wheat ideotypes

A - Papers appearing in refereed journals

Senapati, N. and Semenov, M. A. 2019. Assessing yield gap in high productive countries by designing wheat ideotypes. Scientific Reports. 9 (1), p. 5516.

AuthorsSenapati, N. and Semenov, M. A.
Abstract

Designing crop ideotypes in silico is a powerful tool to explore the crop yield potential and yield gap.We defined yield gap as the difference between yield potential of a crop ideotype optimized under local environment and yield of an existing cultivar under optimal management. Wheat ideotypes were designed for the current climate using the Sirius model for both water-limited and irrigated conditions in two high wheat-productive countries viz. the United Kingdom (UK) and New Zealand (NZ) with the objective of estimating yield gap. The mean ideotype yields of 15.0–19.0 t ha−1 were achieved in water limited conditions in the UK and NZ, whereas 15.6–19.5 t ha−1 under irrigated conditions. Substantial yield gaps were found in both water-limited, 28–31% (4–6 t ha−1), and irrigated conditions, 30–32% (5–6 t ha−1) in the UK and NZ. Both yield potential (25–27%) and yield gap (32–38%) were greater in NZ than the UK. Ideotype design is generic and could apply globally for estimating yield gap. Despite wheat breeding efforts, the considerable yield gap still potentially exists in high productive countries such as the UK and NZ. To accelerate breeding, wheat ideotypes can provide the key traits for wheat improvement and closing the yield gap.

Keywordscomputational models; plant physiology
Year of Publication2019
JournalScientific Reports
Journal citation9 (1), p. 5516
Digital Object Identifier (DOI)doi:10.1038/s41598-019-40981-0
PubMed ID30940895
PubMed Central IDPMC6445095
Open accessPublished as ‘gold’ (paid) open access
FunderBiotechnology and Biological Sciences Research Council
Funder project or codeDesigning Future Wheat (DFW) [ISPG]
ASSIST - Achieving Sustainable Agricultural Systems
Publisher's version
Accepted author manuscript
Output statusPublished
Publication dates
Online02 Apr 2019
Publication process dates
Accepted27 Feb 2019
PublisherNature Publishing Group
Copyright licenseCC BY
ISSN2045-2322

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