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ARS Home » Pacific West Area » Davis, California » Crops Pathology and Genetics Research » Research » Publications at this Location » Publication #369810

Research Project: Sustainable Vineyard Production Systems

Location: Crops Pathology and Genetics Research

Title: Extreme heat effects on perennial crops and strategies for sustaining future production

item PARKER, LAUREN - University Of California, Davis
item McElrone, Andrew
item Ostoja, Steven
item FORRESTEL, ELISABETH - University Of California, Davis

Submitted to: Plant Science
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 12/29/2019
Publication Date: 1/18/2020
Citation: Parker, L.E., McElrone, A.J., Ostoja, S.M., Forrestel, E.J. 2020. Extreme heat effects on perennial crops and strategies for sustaining future production. Plant Science. 295.

Interpretive Summary:

Technical Abstract: Extreme heat events, particularly in combination with overall warming average temperatures, can challenge agricultural production and raise the risk of food insecurity. California is the largest agricultural producer in the United States, and climate change and extreme heat have the potential to significantly affect the state’s food production. This paper provides a summary of the current literature on crop responses to heat exposure, with a focus on perennial agriculture in California. We highlight contemporary trends and future projections in heat extremes, and the range of plant responses to heat exposure, noting the variability in plant tolerance and response across season, crop, and cultivar. We also review practices employed to mitigate heat damage and the capacity for those practices to serve as adaptation options in a warmer and drier future. Finally, we discuss current and future research directions aimed at increasing the adaptive capacity of perennial agriculture to the increased heat exposure anticipated with climate change. Collectively, the literature reviewed makes clear the need to understand crop responses and tolerances to heat within the context of climate change and climate extremes in order to sustain crop production, preserve agricultural communities, and bolster food security at local, national, and global scales.