Effect of Sprinkler Cooling of Grapevines on Fruit Growth and Composition

Kliewer, W. M.; Schultz, H

doi:10.5344/ajev.1973.24.1.17

Cited by 29 publications

(3 citation statements)

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“…The adverse impacts of elevated temperatures may be exacerbated when coupled with a substantial reduction of soil water content ( Carvalho et al., 2016 ). In conclusion, if irrigating before an extreme heat event can increase leaf transpiration, generating a cooling effect in the fruit zone similar to that of overhead irrigation with sprinklers ( Kliewer and Schultz, 1973 ; Martínez-Lüscher et al., 2020 ), it is demonstrated here that the effect of a misting system dedicated to the cluster zone has a direct impact on the accumulation of anthocyanins, reducing their degradation.…”

Section: Discussionmentioning

confidence: 61%

“…In light of the proven capacity of water misting to lower the surface temperature of vine organs ( Howell et al., 1971 ; Kliewer and Schultz, 1973 ), the aim of the two-year trial was to investigate the impact of an innovative fruit-zone cooling system on two grape varieties: Sangiovese and Montepulciano. As well known, these varieties are recognized for exhibiting distinct responses under conditions of both limited and unlimited water availability, particularly in the context of climate change ( Palliotti et al., 2011 ; Palliotti et al., 2014 ).…”

Section: Discussionmentioning

confidence: 99%

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Use of an automatic fruit-zone cooling system to cope with multiple summer stresses in Sangiovese and Montepulciano grapes

Valentini,

Allegro,

Pastore

et al. 2024

Front. Plant Sci.

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Grapevines are frequently subjected to heatwaves and limited water availability during ripening. These conditions can have consequences for the physiological health of the vines. Moreover, the situation is often exacerbated by intense solar radiation, resulting in reduced yield due to sunburn and a decline in quality. In light of these challenges, our study aimed to develop a fruit-zone cooling system designed to mitigate grape sunburn damage and improve the microclimate conditions within the vineyard. The system comprises a network of proximal sensors that collect microclimate data from the vineyard and an actuator that activates nebulizers when the temperature exceeds the threshold of 35°C. The research was conducted over two years (2022 and 2023) in Bologna (Italy) using potted Sangiovese and Montepulciano vines. These two vintages were characterized by high temperatures, with varying amounts of rainfall during the test period, significantly impacting the evaporative demand, which was notably higher in 2023. Starting from the veraison stage we compared three treatments: Irrigated control vines (WW); Control vines subjected to 50% water restriction during the month of August (WS); WS vines treated with nebulized water in the bunch area during the stress period (WS+FOG). The application of nebulized water effectively reduced the temperature of both the air around the clusters and the clusters themselves. As we expected, Montepulciano showed better single leaf assimilation rate and stomatal conductance under non-limiting water conditions than Sangiovese while their behavior was unaffected under water-scarce conditions. Importantly, for the first time, we demonstrated that nebulized water positively affected gas exchange in both grape varieties. In addition to this, the vines treated with the misting system exhibited higher productivity compared to WS vines without affecting technological maturity. In the 2023 vintage, the activation of the system prevented the ripening blockage that occurred in Montepulciano under water stress. Regarding the concentration of total anthocyanins, a significant increase in color was observed in WS+FOG treatment, suggesting a predominant role of microclimate on anthocyanin biosynthesis and reduction of oxidative phenomena. In conclusion, the fruit-zone cooling system proved to be an invaluable tool for mitigating the adverse effects of multiple summer stresses.

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Section: Discussionmentioning

confidence: 61%

Section: Discussionmentioning

confidence: 99%

Use of an automatic fruit-zone cooling system to cope with multiple summer stresses in Sangiovese and Montepulciano grapes

Valentini,

Allegro,

Pastore

et al. 2024

Front. Plant Sci.

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“…Other methods proposed to reduce radiation include leaf canopy management to keep the fruit shaded ( Feng et al., 2018 ; Garrido et al., 2018 ; Martínez-Lüscher et al., 2020 ; Meza et al., 2023 ) and the installation of shading nets covering orchards and vineyards ( Lobos et al., 2012 ; Feng et al., 2018 ; Mupambi et al., 2018 ). Besides methods oriented to reduce radiation, studies support the use of overhead irrigation misting systems to avoid heat stress in mid-summer ( Kliewer and Schultz, 1973 ; Feng et al., 2018 ; Martínez-Lüscher et al., 2020 ).…”

Section: Discussionmentioning

confidence: 99%

Climate change impacts on temperate fruit and nut production: a systematic review

Osorio-Marín,

Fernandez,

Vieli

et al. 2024

Front. Plant Sci.

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Temperate fruit and nut crops require distinctive cold and warm seasons to meet their physiological requirements and progress through their phenological stages. Consequently, they have been traditionally cultivated in warm temperate climate regions characterized by dry-summer and wet-winter seasons. However, fruit and nut production in these areas faces new challenging conditions due to increasingly severe and erratic weather patterns caused by climate change. This review represents an effort towards identifying the current state of knowledge, key challenges, and gaps that emerge from studies of climate change effects on fruit and nut crops produced in warm temperate climates. Following the PRISMA methodology for systematic reviews, we analyzed 403 articles published between 2000 and 2023 that met the defined eligibility criteria. A 44-fold increase in the number of publications during the last two decades reflects a growing interest in research related to both a better understanding of the effects of climate anomalies on temperate fruit and nut production and the need to find strategies that allow this industry to adapt to current and future weather conditions while reducing its environmental impacts. In an extended analysis beyond the scope of the systematic review methodology, we classified the literature into six main areas of research, including responses to environmental conditions, water management, sustainable agriculture, breeding and genetics, prediction models, and production systems. Given the rapid expansion of climate change-related literature, our analysis provides valuable information for researchers, as it can help them identify aspects that are well understood, topics that remain unexplored, and urgent questions that need to be addressed in the future.

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Canopy Growth and Development Processes in Apples and Grapevines

Greer

2018

Horticultural Reviews

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Effect of Sprinkler Cooling of Grapevines on Fruit Growth and Composition

Cited by 29 publications

References 0 publications

Use of an automatic fruit-zone cooling system to cope with multiple summer stresses in Sangiovese and Montepulciano grapes

Use of an automatic fruit-zone cooling system to cope with multiple summer stresses in Sangiovese and Montepulciano grapes

Climate change impacts on temperate fruit and nut production: a systematic review

Canopy Growth and Development Processes in Apples and Grapevines

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