Greenhouse climate control affects postharvest tomato quality

Farneti, Brian; Schouten, R.E.; Qian, Tian; Dieleman, J.A.; Tijskens, L.M.M.; Woltering, E.J.

doi:10.1016/j.postharvbio.2013.07.004

Cited by 24 publications

(18 citation statements)

References 27 publications

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“…The increase of organic acid content with succession of harvesting has been also suggested in the report of Farneti et al ., especially when cool air was applied below growing gutters allowing for lower air temperatures close to fruit clusters. Moreover, in agreement with the results reported by Georgelis et al ., the highest value of TSS content in our study coincided with the highest organic acid content (Tables and ).…”

Section: Discussionsupporting

confidence: 59%

“…Environmental factors may have a crucial effect on colour development due to acceleration in carotenoid biosynthesis and chlorophyll breakdown and therefore in earliness of ripening and reduced sugar content. 38 The increase of organic acid content with succession of harvesting has been also suggested in the report of Farneti et al, 36 especially when cool air was applied below growing gutters allowing for lower air temperatures close to fruit clusters. Moreover, in agreement with the results reported by Georgelis et al, 38 the highest value of TSS content in our study coincided with the highest organic acid content (Tables 3 and 4).…”

Section: Chemical Compositionmentioning

confidence: 62%

“…who also suggested fluctuating values of sugars/acids ratio and generally higher values during the summer period. In addition, Farneti et al . attributed the increase in sugars/acids ratio values to higher sucrose synthase activity and hexose contents under higher temperatures and irradiation levels.…”

Section: Discussionmentioning

confidence: 99%

“…wileyonlinelibrary.com/jsfa The findings of our study regarding sugar composition are in agreement with the study of Krumbein and Schwarz 35 who also reported fructose and glucose as the most important soluble sugars in tomato fruit. Similarly, Farneti et al 36 reported a monthly variation in sugar levels of tomato fruit grown in greenhouses with different cooling systems and further concluded that sugar content was not affected by greenhouse type and climate conditions. In addition, Papaioannou et al 17 did not find a significant effect of PE cover materials on TSS content of tomato fruit.…”

Section: Chemical Compositionmentioning

confidence: 93%

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The effect of covering material on the yield, quality and chemical composition of greenhouse‐grown tomato fruit

et al. 2019

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BACKGROUND During the last few decades, greenhouse technology for horticultural crops has focused on retaining optimum conditions within the greenhouse environment that could allow for a compromise between maximum yields and minimum production costs. The aim of this study was to evaluate the effect of three greenhouse covering materials and five harvesting dates on the yield and quality parameters of hydroponically produced tomato fruit, as well as on energy consumption. RESULTS Plants had a higher growth rate at early stages for S‐PE cover material, while differences were minimized at later stages. Tocopherol content was the highest for ID‐PE material and harvesting later than 170 days after transplanting (DAT), while sugar content (fructose and glucose) was the highest for S‐PE material and 157 DAT. Organic acid content was the highest at early harvestings, especially for 7‐PE and S‐PE cover materials, while it exhibited decreasing trends at later harvesting dates. Antioxidant properties showed a varied response to cover materials and harvesting dates, while β‐carotene, carotenoids and chlorophylls were the highest for 7‐PE material. CONCLUSIONS The results showed that both cover materials and harvesting date may affect significantly tomato fruit quality, especially sugar and organic acid contents which are associated with fruit taste, as well as tocopherols which contribute to antioxidant properties and pigments that are associated with fruit ripening and earliness of marketable maturity. © 2018 Society of Chemical Industry

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Section: Discussionsupporting

confidence: 59%

Section: Chemical Compositionmentioning

confidence: 62%

Section: Discussionmentioning

confidence: 99%

Section: Chemical Compositionmentioning

confidence: 93%

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The effect of covering material on the yield, quality and chemical composition of greenhouse‐grown tomato fruit

et al. 2019

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“…To produce high-quality crops systematically, the proper growing condition for each type of crop should be kept uniform in the space [9–13]. Temperature distribution, for instance, is one of the most important environmental factors to keep crop growth constant [14–19].…”

Section: Introductionmentioning

confidence: 99%

Minimization of Temperature Ranges between the Top and Bottom of an Air Flow Controlling Device through Hybrid Control in a Plant Factory

Moon

Kwon

Lim

2014

The Scientific World Journal

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To maintain the production timing, productivity, and product quality of plant factories, it is necessary to keep the growth environment uniform. A vertical multistage type of plant factory involves different levels of growing trays, which results in the problem of difference in temperature among vertically different locations. To address it, it is necessary to install air flow devices such as air flow fan and cooling/heating device at the proper locations in order to facilitate air circulation in the facility as well as develop a controlling technology for efficient operation. Accordingly, this study compares the temperature and air distribution within the space of a vertical multistage closed-type plant factory by controlling cooling/heating devices and air flow fans harmoniously by means of the specially designed testbed. The experiment results indicate that in the hybrid control of cooling and heating devices and air flow fans, the difference in temperature decreased by as much as 78.9% compared to that when only cooling and heating devices were operated; the air distribution was improved by as much as 63.4%.

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