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Effect of Global Warming on the Yields of Strawberry in Queensland: A Mini-Review

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Menzel, C. M. (2023) Effect of Global Warming on the Yields of Strawberry in Queensland: A Mini-Review. Horticulturae, 9 (2). p. 142. ISSN 2311-7524

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Article Link: https://doi.org/10.3390/horticulturae9020142

Publisher URL: https://www.mdpi.com/2311-7524/9/2/142

Abstract

Light, temperature and rainfall affect the growth and yield of strawberry plants (Fragaria × ananassa Duch.). The objective of this review was to determine the impact of global warming on the yields of strawberry in a temperate (summer crop) and subtropical environment (winter crop) in southern Queensland, Australia. Information was collected on the changes in temperature over five decades in two locations in this area. The relationship between relative yield and temperature from published data was used to determine the impact of global warming on productivity in the two locations. Finally, the impact of elevated concentrations of CO2 and temperature on yield was examined from studies in the literature. The average daily mean temperature has increased by 2 °C over the season on the Sunshine Coast (winter crop) since 1967 (p < 0.001, R2 = 0.69). The impact of global warming has been less severe on the Granite Belt (summer crop), with a 1 °C increase in temperature (p < 0.001, R2 = 0.37). Information was collected from the literature on the yield in individual temperature regimes in an experiment and these data were compared with the maximum yield in the same experiment (relative yield). There was a negative linear relationship between relative yield and temperature in most of the published literature. The mean (± s.d. or standard deviation) estimate of the slope from the regression was −0.14 (± 0.14), the median was −0.11 and the range was from −0.51 to 0.11 (n = 14 studies). Increases in temperature were associated with a decrease in yield of 14% to 28% in the two areas in Queensland. The results of other research indicated that elevated concentrations of CO2 do not benefit productivity when combined with elevated temperatures. Further decreases in yield are expected in the next few decades in the absence of heat-tolerant cultivars or other mitigating strategies.

Item Type:Article
Business groups:Horticulture and Forestry Science
Keywords:climate; CO2 concentration; global warming; model; net CO2 assimilation; review; subtropics; temperate; temperature; yield
Subjects:Agriculture > Agriculture (General) > Agriculture and the environment
Agriculture > Agriculture (General) > Agricultural meteorology. Crops and climate
Plant culture > Horticulture. Horticultural crops
Plant culture > Fruit and fruit culture > Berries and small fruits
Agriculture > By region or country > Australia > Queensland
Live Archive:25 Jan 2023 00:22
Last Modified:25 Jan 2023 00:22

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