Gala apple production benefits from high shading levels and water limitation, under exclusion netting

Boini, Alexandra; Bortolotti, G.; Perulli, Giulio Demetrio; Venturi, Melissa; Bonora, Alessandro; Manfrini, Luigi; Grappadelli, Luca Corelli

doi:10.1016/j.scienta.2022.111756

Cited by 8 publications

(5 citation statements)

References 54 publications

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“…Measurements were performed according to Boini et al [9], on the following dates: 12 June, 16 July, 30 July, 20 August, 8 October, in 2020; 26 May, 30 June, 3 August, 3 September, 14 October, in 2021.…”

Section: Midday Stem Water Potential and Leaf Gas Exchangesmentioning

confidence: 99%

“…The recent introduction of commercial solutions that enclose the entire orchard, known as "exclusion netting", has been tested for pest management purposes [10][11][12][13][14][15][16][17][18] in France, Italy and Croatia. More recently, this system was tested on apple physiology, on the early ripening Gala [9]. The results of these works are encouraging in boosting sustainability for apple growing.…”

Section: Introductionmentioning

confidence: 96%

“…Shading has long been known to be a promising strategy for maintaining low crop water requirements [3][4][5][6][7], lowering irrigation restitution volumes [8,9]. Many studies have focused on apples, considered a suitable candidate for trials involving shading nets.…”

Section: Introductionmentioning

confidence: 99%

“…Firstly, there are positive outputs that this mechanical barrier generates when related to pest control. Secondly, 40% shading with a white exclusion system is not detrimental to tree physiological performances and most importantly to marketable yield and final fruit quality [9].…”

Section: Introductionmentioning

confidence: 99%

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Late Ripening Apple Production Benefits from High Shading and Water Limitation under Exclusion Netting

et al. 2022

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In highly solar irradiated areas, apple production can face challenges due to high evaporative water demands. Shading can be used to lower irrigation requirements and make apple growing more sustainable. In this trial, a white exclusion net (40% shading) integrated with rain protection was compared with a regular anti-hail black net (20% shading), on Rosy Glow apple. Crop physiology, yield and quality parameters were monitored during two consecutive years, under conditions of full and restricted irrigation. Since Et0 under the two cover systems was different, their respective 100% irrigation replacement was different; both covers also received a restricted irrigation treatment (70% replacement of Et0). Tree physiology (midday stem water potential, leaf gas exchanges, seasonal fruit growth) was not affected, neither by less light nor by less water. Moreover, marketable yield, fruit color and soluble solid content were improved under the more shaded environment, even when the irrigation volume was limited. These results are encouraging, as an overall 50% of water was saved (ca. 190 mm tree−1 per year), compared to the control irrigation treatment, under a classic anti-hail system (ca. 370 mm tree−1 per year).

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Section: Midday Stem Water Potential and Leaf Gas Exchangesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Late Ripening Apple Production Benefits from High Shading and Water Limitation under Exclusion Netting

et al. 2022

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“…Being able to forecast the occurrence of possible fruit sunburn damage based on past, current, and forecasted weather data would be interesting for growers. This would enable the adoption of defense strategies such as kaolin spraying, climate-conditioning irrigation (e.g., over-canopy irrigation) as well as using netting systems to increase shading levels [6].…”

Section: Introductionmentioning

confidence: 99%

Development of a consumer-grade scanning platform for fruit thermal and position data collection

Bortolotti,

Piani,

Mengoli

et al. 2023

2023 IEEE International Workshop on Metrology for Agriculture and Forestry (MetroAgriFor)

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Covering young avocado ‘Hass’ trees with high-density shading nets during the winter mitigates frost damage and improves tree performance

Lahak,

Alon,

Chen

et al. 2024

Trees

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Key message Covering young ‘Hass’ trees with Silver 60% shading nets during cold winters mitigates frost damage and improves tree performance, apparently through a mechanism other than increasing nighttime air temperature. Abstract Avocado is a commercially important subtropical evergreen fruit tree. Severe frost may damage foliage, floral buds, flowers and fruit, thereby reducing avocado crop yield and restricting its geographical distribution and expansion. Shading nets are frequently used to protect agricultural crops from climate-related damage. To determine their ability to mitigate frost damage, Silver 60% shading nets were deployed over young ‘Hass’ trees during two consecutive winters and uncovered trees served as controls. Freezing and chilling temperatures occurred in the experimental orchard during the winter of each year, from December to March, reaching − 2.49 ℃ in January 2022. In the control, 93% of the examined floral buds were severely damaged compared to 4% in the Silver 60% trees. Damage to young vegetative shoots was assessed at 4.35 out of 5 in the control compared to 0.5 out of 5 in the Silver 60% trees. In both years, minimum air temperatures under the Silver 60% shading nets were similar to those of the control. Leaf-level photosynthetic photon flux density was ~ 60% lower under the shading nets. In most measurements, CO2-assimilation rate, stomatal conductance, ratio of variable to maximum fluorescence (Fv/Fm) and chlorophyll concentration in the leaves of the Silver 60% trees were higher than, or similar to the controls. Trunk diameter and flowering intensity of the Silver 60% trees were higher than for the control. These results indicate that covering young ‘Hass’ trees with Silver 60% shading nets during cold winters can mitigate frost damage and improve tree performance.

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Gala apple production benefits from high shading levels and water limitation, under exclusion netting

Cited by 8 publications

References 54 publications

Late Ripening Apple Production Benefits from High Shading and Water Limitation under Exclusion Netting

Late Ripening Apple Production Benefits from High Shading and Water Limitation under Exclusion Netting

Development of a consumer-grade scanning platform for fruit thermal and position data collection

Covering young avocado ‘Hass’ trees with high-density shading nets during the winter mitigates frost damage and improves tree performance

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