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

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.

Climate change increases net CO2assimilation in the leaves of strawberry, but not yield

“…Research in Japan suggests that there is close agreement between CO 2 assimilation in leaves and the canopy only under high light and high CO 2 (Le et al, 2021). A recent analysis indicated that yield decreases by 60 g per plant for each 1°C increase in temperature (Menzel, 2023). However, this study did not take into account changes in carbon production under climate change.…”

Interacting Effects of CO2, Temperature, and Nitrogen Supply on Photosynthetic, Root Growth, and Nitrogen Allocation of Strawberry at the Fruiting Stage

“…Hence, the response of strawberries to increased temperature may therefore be different from other crops. Strawberry productivity decreases when elevated CO 2 is combined with elevated temperature [26]. Himali et al reported that an increase in the intercellular to atmospheric CO 2 ratio (Ci/Ca) at high temperatures may reduce photosynthesis, and thus reduce strawberry yield.…”

Production of Bio-Oil by Co-Pyrolysis of the Coffee and Tire Wastes

“…This expansion increases the need to find alternative energy resources that are completely free from all negative impacts on the Earth, such as greenhouse gas (GHG) emissions. The evaluation of carbonaceous wastes such as biomass is considered a reliable clean energy source [2]. Industrial wastes, agricultural wastes, food wastes, and wastewater represent different types of biomasses.…”