Effects of shading and insect-proof screens on crop microclimate and production: A review of recent advances

Mahmood, Ashraf; Hu, Yongguang; Tanny, Josef; Asante, Eric Amoah

doi:10.1016/j.scienta.2018.06.078

Cited by 69 publications

(54 citation statements)

References 58 publications

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“…The indirect effect was the reduction of ambient temperature for about 1.9-3.3 o C, the reduction of leaf temperature for about 0.3-0.8 o C, the reduction of soil temperature for about 2.3-4.3 o C and the improvement of relative humidity for about 2-2.4%, compared to control. Microclimates modification through shading may have an effect on the plant production and quality (Mahmood et al, 2018). In agreement with previous work, present study also proved the difference growth, production and physiological response of kaffir lime in response to shading.…”

Section: Microclimates Variationsupporting

confidence: 93%

“…Shading solely was proved to be vegetative booster in numerous Citrus species, such as lemon (Gimeno et al, 2015), oranges (Incesu et al, 2016) and grapefruit (Cohen et al, 2005). Beneficial effect of shading in Citrus might be related to the status of its species as C3 plant (Sage and Zhu, 2011), since shading was inauspicious for C4 plants (Mahmood et al, 2018).…”

Section: Growth Performancesmentioning

confidence: 99%

“…Shading is one of culture techniques to reduce the sunlight exposure, air temperature and also evapotranspiration but increase the air relative humidity in the agroecosystem (Alarcon et al, 2006). In general, the reduction of sunlight exposure on shaded plants is estimated for about 15-39%, air temperature for about 2.3-2.5% and evapotranspiration for about 17-50%, followed with the improvement of air relative humidity for about 2-21%; however, it is highly influenced by the climatic region, shading structure, shading net type and also plant canopy (Mahmood et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Agronomical and Physiological Characters of Kaffir Lime (Citrus hystrixDC) Seedling under Artificial Shading and Pruning

Budiarto

Santosa

2019

Emir J Food Agric

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Kaffir lime (Citrus hystrix DC) is a minor citrus and its leaves are locally used for spices and essential oils. This study aimed to evaluate agronomical and physiological characters of kaffir lime seedling under modified cultural practices in order to improve leaf production. Shading and pruning were applied on five-month-old seedling during the rainy season, November 2017 to March 2018 in Bogor, Indonesia. The results showed that shading significantly improved the plant growth by 84%, and leaf number by 37%. Pruning treatment reduced the plant height by 8% and increased the shoot number by 20%. However, leaf production was more influenced by shading rather than pruning, with an increase for about 59% than control. This study also revealed a significant improvement on photosynthetic rate, stomatal conductance and water use efficiency on shaded lime for about 13%, 8% and 14%, respectively. Leaf pigment was also altered in response to shading, i.e the increasing chlorophyll B by 23% and the reduction anthocyanin by 38% on shaded lime. Mild shading with 24% light reduction is recommended to gain the leaf production of kaffir lime seedling.

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Section: Microclimates Variationsupporting

confidence: 93%

Section: Growth Performancesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Agronomical and Physiological Characters of Kaffir Lime (Citrus hystrixDC) Seedling under Artificial Shading and Pruning

Budiarto

Santosa

2019

Emir J Food Agric

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“…This firmness decrease of fruit throughout the storage periods is due to a high respiration rate and weight loss (Cantwell et al, 2009;Lahay et al, 2013). This study indicated that DSC treated bell pepper fruit showed lower changes than DS, which could be due to the cover reducing the air temperature inside the bell pepper box (Mahmood et al, 2018), and immediate storage after harvesting bell pepper could maintain better firmness than delayed cooling of bell pepper. Data on firmness changes of bell pepper samples over storage time under the three treatments fitted polynomial models with R 2 values of 0.98, 0.97, and 0.96 for IS, DS, and DSC treated bell pepper, respectively (Fig.…”

Section: Firmnessmentioning

confidence: 84%

Influence of delayed cooling on quality of bell pepper (Capsicum annuum L.) stored in a controlled chamber

Kabir¹,

Lee

Cho

et al. 2019

Emir J Food Agric

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Improper postharvest handling, including delaying cooling, is a big concern for maintaining the freshness of fruit and vegetables in the postharvest supply chain. The objective of this study was to investigate the influence of short delays in cooling on some important quality parameters such as physiological weight loss, firmness, total soluble solids (TSS), and color (L*, h°, and C*) values of bell peppers stored in a controlled chamber. Bell peppers treated with three different treatments showed a gradual physiological weight loss of 1.46%, 3.18%, and 3.14% after a storage period of 15 days with: immediate storage (IS) after harvest in a controlled chamber, delaying storage (DS), leaving bell pepper without cover for one day, and under cover (DSC) separately in a greenhouse and then storing them in the controlled chamber, respectively. Over the storage period, slower firmness reduction (19.88%) of the IS treated bell peppers was observed compared to other bell pepper samples with delayed cooling. Bell peppers that underwent IS treatment showed lower changes in TSS (°Bx) values (6.89 to 7.24) compared to other treatments during the storage period. Fewer changes in color (L*, h°, and C*) values were found with IS treated bell peppers. Overall changes in the assessed quality parameters of bell pepper samples were slower with IS treatment than delayed cooling treatments throughout the storage period. This study provides significant information on the handling of harvested bell pepper in a favorable environment before transportation to processing and storage centers.

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“…Due to the small size of some insect pests (i.e., thrips, aphids), very fine mesh nets are required [13,15]. Consequently, the use of such nets significantly reduces greenhouse ventilation [16,17] and modifies the exchange of radiation and mass between crops and the atmosphere [12,18]. In some cases, microclimate modifications induced by insect nets can improve yield in addition to reducing pesticides [19,20].…”

Section: Introductionmentioning

confidence: 99%

Experimental Nets for a Protection System against the Vectors of Xylella fastidiosa Wells et al.

et al. 2019

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The effectiveness of experimental nets in preventing the access of adult meadow spittlebug Philaenus spumarius L., the main vector of Xylella fastidiosa Wells et al. subspecies pauca, sequence type (ST) 53, in olive tree nurseries and orchards was evaluated. To optimize the net design, mesh size, kind of fabric, thread typology, and radiometric properties, six nets with different mesh sizes and kinds of fabric were evaluated in laboratory and in field experiments. Laboratory bioassays evaluating the capability of adult spittlebugs to pass through nets with different mesh sizes (1.2, 1.8, 2.4 mm) showed that all nets with a mesh size equal to or lower than 2.4 mm prevented insect crossing. These results were confirmed in field conditions using an experimental net box apparatus. Further laboratory tests showed a positive correlation between porosity and radiometric properties of the nets. Three prototypes of thermally stabilized flat woven nets made of circular cross-sectional yarns, knitted net with strips, and knitted nets made of yarns were tested after the evaluation of their potential usability in terms of porosity stability. The knitted net features were found to be the most suitable. The net transmissivity of the total and direct component of solar radiation in the photosynthetically active radiation and the infrared ranges increased with the net porosity. A prism-shaped wooden frame with a triangular base covered with the knitted net with a 2.4 mm mesh confirmed the insect’s capability of reaching considerable heights, up to 2.85 m. Hence, based on our results, the monowire knitted net with a 2.4 mm mesh can be used in open field nursery and olive orchards to prevent the access of P. spumarius adults and to shield the openings of greenhouse nurseries.

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Effects of shading and insect-proof screens on crop microclimate and production: A review of recent advances

Cited by 69 publications

References 58 publications

Agronomical and Physiological Characters of Kaffir Lime (Citrus hystrixDC) Seedling under Artificial Shading and Pruning

Agronomical and Physiological Characters of Kaffir Lime (Citrus hystrixDC) Seedling under Artificial Shading and Pruning

Influence of delayed cooling on quality of bell pepper (Capsicum annuum L.) stored in a controlled chamber

Experimental Nets for a Protection System against the Vectors of Xylella fastidiosa Wells et al.

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