Gas exchange characteristics of a leading cultivar of Korean strawberry ( Fragaria × ananassa , ‘Sulhyang’)

Jun, Hajoon; Jung, Hee-Jin; Imai, Katsu

doi:10.1016/j.scienta.2017.04.009

Cited by 10 publications

(6 citation statements)

References 16 publications

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“…Temperature is one of the important factors influencing photosynthesis and carbohydrate production in strawberries. The optimum temperature for net CO 2 assimilation per leaf area is about 25 • C, although values do not differ greatly from 16 • C to 32 • C [30,31]. Average maximum temperatures in the current experiment ranged from 20 • C to 30 • C, suggesting that temperatures were close to optimum for photosynthesis in the leaves.…”

Section: Days Since Treatments Appliedmentioning

confidence: 51%

Temperature Has a Greater Effect on Fruit Growth than Defoliation or Fruit Thinning in Strawberries in the Subtropics

Menzel¹

2019

Agriculture

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Fruit size declines in strawberries (Fragaria × ananassa Duch.) as the season progresses in many subtropical areas, possibly due to inadequate leaf area, over-cropping, or high temperatures. An experiment was conducted to investigate the importance of these factors on fruit growth in ‘Festival’ in Queensland, Australia. Groups of plants were defoliated to remove half of the mature leaves on each plant, thinned to remove all the inflorescences on each plant, or defoliated and thinned. Control plants were left intact. Defoliation, thinning, or defoliation + thinning decreased yield (total and/or marketable) by 15% to 24% compared with the control. Defoliation, or defoliation + thinning decreased average fruit weight (total and/or marketable fruit) by 1 to 2 g compared with the control, whereas thinning had the opposite effect. The incidence of small fruit increased towards the end of the season. There were strong relationships between fruit weight and average daily mean temperature in the seven weeks before harvest (R2s greater than 0.80). Fruit weight decreased from 24 g to 8 g as the temperature increased from 16 °C to 20 °C. This response was not affected by defoliation or thinning. The strong effect of temperature on fruit size indicates a problem for production in the future in the absence of heat-tolerant cultivars.

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Section: Days Since Treatments Appliedmentioning

confidence: 51%

Temperature Has a Greater Effect on Fruit Growth than Defoliation or Fruit Thinning in Strawberries in the Subtropics

Menzel¹

2019

Agriculture

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“…Hidaka et al (2013) reported that the light saturation point of strawberries is 400 µmol•m -2 •s -1 at an air temperature of 25°C; however, the average air temperature during this study was below 25°C. Jun et al (2017) illustrated that the net photosynthetic rate of strawberries during winter in South Korea is 25% lower than in autumn. The CO 2 and PAR data from this study were inversely proportional, which coincides with the findings from many other studies (Nederhoff et al,1992;Tartachnyk and Blanke, 2007;Qian et al, 2012).…”

Section: Resultsmentioning

confidence: 99%

Prediction of Strawberry Growth and Fruit Yield based on Environmental and Growth Data in a Greenhouse for Soil Cultivation with Applied Autonomous Facilities

Sim¹,

Kim²,

Ahn³

et al. 2020

HST

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The ability to predict how well crops will grow and how much fruit they will yield is important for farmers, consumers, and researchers. Advances in environmental and plant measurement equipment provide the opportunity for more data to be collected from plant growing operations, which could result in more accurate predictions. The objective of this study was to predict the strawberry growth and fruit yield using environmental and growth data collected with this equipment. The correlation coefficients of the average daily air temperature and soil temperature data for strawberry growth predictions were higher than the relative humidity, soil moisture content, electronic conductivity, CO2 concentration, photosynthetic active radiation, and vapor pressure deficit data. The correlation coefficients of photosynthetic active radiation, vapor pressure deficit, and relative humidity for strawberry yield prediction were higher than the other environmental data and all growth data such as plant height, crown diameter, and leaf length and width. The regression model using environmental data showed high correlation coefficients with the actual yield data (R 2 = 0.99). These results indicate that strawberry growth and fruit yield could be predicted using environmental data.

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“…There is a broad optimum for maximum net CO 2 assimilation, with photosynthesis decreasing only under extreme conditions. The optimum range varies with cultivar and growing conditions and is usually from 20 • C to 30 • C [49][50][51][52]. Carlen et al [53] examined the effect of temperature on CO 2 assimilation in Switzerland.…”

Section: Interaction Between Elevated Co 2 and Temperature On Yieldmentioning

confidence: 99%

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

Menzel¹

2023

Horticulturae

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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.

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Gas exchange characteristics of a leading cultivar of Korean strawberry ( Fragaria × ananassa , ‘Sulhyang’)

Cited by 10 publications

References 16 publications

Temperature Has a Greater Effect on Fruit Growth than Defoliation or Fruit Thinning in Strawberries in the Subtropics

Temperature Has a Greater Effect on Fruit Growth than Defoliation or Fruit Thinning in Strawberries in the Subtropics

Prediction of Strawberry Growth and Fruit Yield based on Environmental and Growth Data in a Greenhouse for Soil Cultivation with Applied Autonomous Facilities

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

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