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Mitigating heat stress in dragon fruit in semi-arid climates: the strategic role of shade nets in enhancing fruit yield and quality.

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Title: Mitigating heat stress in dragon fruit in semi-arid climates: the strategic role of shade nets in enhancing fruit yield and quality.
Authors: Patil, Amol1,2 (AUTHOR), Kakade, V. D.1 (AUTHOR) vijaykakade.7@gmail.com, Kalalbandi, B. M.3 (AUTHOR), Morade, A. S.1 (AUTHOR), Chavan, S. B.1 (AUTHOR), Salunkhe, V. N.1 (AUTHOR), Nangare, D. D.1 (AUTHOR), Basavaraj, P. S.1 (AUTHOR), Jinger, Dinesh4 (AUTHOR), Reddy, K. S.1 (AUTHOR)
Source: Environment, Development & Sustainability. Jul2026, Vol. 28 Issue 7, p16887-16923. 37p.
Subject Terms: *Fruit yield, *Fruit quality, *Arid regions, *Plant physiology, *Physiological effects of heat, *Pitahayas, *Agriculture
Abstract: Dragon fruit, a perennial climbing cactus, has become economically attractive due to health benefits and export potential. Its cultivation has spread to warm-humid and hot-dry climates, where it suffers from heat stress. Green cladodes turn yellow, become bleached, and in severe cases rot and liquefy. Thus, it weakens plant vegetative and reproductive growth, making it vulnerable to disease and hampering fruit yield and quality. To manage heat stress and prevent sunburn, green-, white-, and black-coloured shade nets with 35% and 50% shade factors were employed in three dragon fruit genotypes. Overall, shading reduced incoming solar radiation by ˜40–70%, lowered the canopy temperature by 3–7 °C. Shading reduced sunburn by > 96%, as well as disease incidence and severity. It enhanced new sprouts by 28–84%, total chlorophyll (28–79%), and NDVI, while reducing canopy temperature. White and black 50% shading also increased flower bud production by 33% and 27%, respectively, compared with open and reduced flower bud drop. Under these two shades, yield increment was observed by 67% and 53% compared to open. However, shading reduced total soluble solids. White 50% shading enhanced total phenols and flavonoids, while white 35% shading enhanced vitamin C in fruit pulp compared to control. Overall, our findings indicate that white and black 50% shading are more suitable for preventing heat stress damage in dragon fruit in hot and dry semi-arid climates for sustainable yield and fruit quality. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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DbLabel: Energy & Power Source
An: 194936980
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PubTypeId: academicJournal
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  Data: Mitigating heat stress in dragon fruit in semi-arid climates: the strategic role of shade nets in enhancing fruit yield and quality.
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  Data: <searchLink fieldCode="JN" term="%22Environment%2C+Development+%26+Sustainability%22">Environment, Development & Sustainability</searchLink>. Jul2026, Vol. 28 Issue 7, p16887-16923. 37p.
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  Data: *<searchLink fieldCode="DE" term="%22Fruit+yield%22">Fruit yield</searchLink><br />*<searchLink fieldCode="DE" term="%22Fruit+quality%22">Fruit quality</searchLink><br />*<searchLink fieldCode="DE" term="%22Arid+regions%22">Arid regions</searchLink><br />*<searchLink fieldCode="DE" term="%22Plant+physiology%22">Plant physiology</searchLink><br />*<searchLink fieldCode="DE" term="%22Physiological+effects+of+heat%22">Physiological effects of heat</searchLink><br />*<searchLink fieldCode="DE" term="%22Pitahayas%22">Pitahayas</searchLink><br />*<searchLink fieldCode="DE" term="%22Agriculture%22">Agriculture</searchLink>
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  Label: Abstract
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  Data: Dragon fruit, a perennial climbing cactus, has become economically attractive due to health benefits and export potential. Its cultivation has spread to warm-humid and hot-dry climates, where it suffers from heat stress. Green cladodes turn yellow, become bleached, and in severe cases rot and liquefy. Thus, it weakens plant vegetative and reproductive growth, making it vulnerable to disease and hampering fruit yield and quality. To manage heat stress and prevent sunburn, green-, white-, and black-coloured shade nets with 35% and 50% shade factors were employed in three dragon fruit genotypes. Overall, shading reduced incoming solar radiation by ˜40–70%, lowered the canopy temperature by 3–7 °C. Shading reduced sunburn by > 96%, as well as disease incidence and severity. It enhanced new sprouts by 28–84%, total chlorophyll (28–79%), and NDVI, while reducing canopy temperature. White and black 50% shading also increased flower bud production by 33% and 27%, respectively, compared with open and reduced flower bud drop. Under these two shades, yield increment was observed by 67% and 53% compared to open. However, shading reduced total soluble solids. White 50% shading enhanced total phenols and flavonoids, while white 35% shading enhanced vitamin C in fruit pulp compared to control. Overall, our findings indicate that white and black 50% shading are more suitable for preventing heat stress damage in dragon fruit in hot and dry semi-arid climates for sustainable yield and fruit quality. [ABSTRACT FROM AUTHOR]
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        Value: 10.1007/s10668-024-05619-w
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      – Code: eng
        Text: English
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        PageCount: 37
        StartPage: 16887
    Subjects:
      – SubjectFull: Fruit yield
        Type: general
      – SubjectFull: Fruit quality
        Type: general
      – SubjectFull: Arid regions
        Type: general
      – SubjectFull: Plant physiology
        Type: general
      – SubjectFull: Physiological effects of heat
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      – SubjectFull: Pitahayas
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      – SubjectFull: Agriculture
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      – TitleFull: Mitigating heat stress in dragon fruit in semi-arid climates: the strategic role of shade nets in enhancing fruit yield and quality.
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            – D: 01
              M: 07
              Text: Jul2026
              Type: published
              Y: 2026
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