Cited by 546Climate change impacts on agricultureCrop Yield and Soil FertilityWheat and Barley Genetics and Pathology

Simulating the impact of extreme heat and frost events on wheat crop production: A review

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Barlow, K.M., Christy, B.P., O’Leary, G.J., Riffkin, P.A., Nuttall, J.G.·2015·Field Crops Research

Abstract

Extreme weather events (frost and heat shock), already a significant challenge for grain producers, are predicted to increase under future climate scenarios. This paper reviews the current knowledge on the impacts of extreme heat (heat shock) and frost on crop production and how these impacts are incorporated into contemporary process-based crop models. Heat shock and frost result in a range of physiological impacts on wheat. Based on the literature we conclude that the greatest impacts on production from frost are associated with sterility and the abortion of formed grains around anthesis. While the greatest yield impact from heat shock are reduced grain number (sterility and abortion of grains) during anthesis to early grain filling; as well as the reduced duration of grain filling. Crop models generally did not consider the non-linear response in grain yield from a heat shock or frost event due to these key physiological impacts. While frost damage was incorporated into a number of models through winterkill functions, seedling death or advanced senescence, only the STICS model incorporated a potential decrease in grain number around anthesis. In contrast, heat shock was rarely considered within crop models, with only two examples found in the literature; (1) APSIM-Nwheat which incorporated accelerated senescence in response to extreme heat and (2) MONICA which incorporated a reduction in grain number and yield. We propose a conceptual model for the change in grain number and therefore yield in response to both a frost and heat shock event. We discuss the potential use of daily maximum/minimum temperatures, canopy temperature and heat/frost loads for determining crop response in the models. As well as identifying the need for a greater understanding on how the duration of temperature extremes impact on yield, as well as the cumulative effects of multiple heat/frost events and the interactions with other abiotic stresses including drought.

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Crossref · 10.1016/j.fcr.2014.11.010

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  • Heat stress affects grain production and yield, cold stress results in sterility, and drought stress negatively influences the morpho-physiology of plants.

    “As heat stress affects the grain production and yield, cold stress results in sterility, and drought stress negatively influences the morpho-physiology of plants [69,70].”

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Research works printed but not linked: 4

  1. Acevedo, E., Silva, P., Silva, H., 2002. Wheat growth and physiology. In: Curtis, B., Rajaram, S., Gomez-Macpherson, H. (Eds.), Bread Wheat. Food and Agriculture Organization of the United Nations, Rome.
  2. McDonald, G., Gardner, W., 1996. Optimising sowing time. In: Cawood, R. (Ed.), Prin- ciples of Sustainable Agriculture: Climate, Temperature and Crop Production in South-Eastern Australia. Agriculture Victoria, Horsham, Australia, pp. 97-105.
  3. Rebbeck, M., Knell, G., 2007. In: Reuter, D. (Ed.), Managing Frost Risk: A Guide for Southern Australian Grains. South Australian Research and Development Insti- tute and Grains Research and Development Corporation, Canberra, Australia.
  4. Talukder, A., Gill, G., McDonald, G., Hayman, P., Alexander, B., 2010. Field evalua- tion of the sensitivity of wheat to high temperature stress near flowering and early grain set. In: Dove, H., Culvenor, R. (Eds.), Food Security from Sustainable Agriculture. 15th Agronomy Conference. Lincoln, New Zealand.

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Authors
Barlow, K. M., Christy, B. P., O’Leary, G. J., Riffkin, P. A., & Nuttall, J. G.
Affiliations
Department of Environment, Land, Water and Planning (AU)
Corresponding author
Barlow, K.M.
Venue
Field Crops Research
Publisher
Elsevier BV
Published
2015-02
Volume
171
Pages
109-119
ISSN
0378-4290 (ISSN-L)
OpenAlex
W1963519462
Cited by
546
References
75
Citations by year
2026: 37 · 2025: 52 · 2024: 53 · 2023: 51 · 2022: 84 · 2021: 61 · 2020: 54 · 2019: 47 · 2018: 43 · 2017: 31 · 2016: 20 · 2015: 12
FWCI
21.64
Type
journal article
Language
en
Open access
Locations
Field Crops Research (publishedVersion, cc-by-nc-sa)
Funders
Department of Environment and Primary Industries
Topics
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Climate change impacts on agriculture
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Crop Yield and Soil Fertility
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Wheat and Barley Genetics and Pathology
Keywords
wheat, extreme heat, frost, heat shock, crop yield, grain number, sterility, grain filling stage, crop models, winterkill, STICS model, MONICA, canopy temperature, abiotic stress interactions, drought

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