Effect of coloured shade nets on some nutritional characteristics of a kapia type pepper grown in plastic tunnel

Authors

  • Attila Ombódi Szent István University, Faculty of Agricultural and Environmental Sciences, Institute of Horticulture, H-2100 Gödöllő, Páter Károly utca 1.
  • Zoltán Pék Szent István University, Faculty of Agricultural and Environmental Sciences, Institute of Horticulture, H-2100 Gödöllő, Páter Károly utca 1.
  • Péter Szuvandzsiev Szent István University, Faculty of Agricultural and Environmental Sciences, Institute of Horticulture, H-2100 Gödöllő, Páter Károly utca 1.
  • Andrea Lugasi Budapest Business School, College of Commerce, Catering and Tourism, Department of Catering, H-1054 Budapest, Alkotmány utca 9-11. (former workplace where the present study was carried out: National Institute for Food and Nutrition Science, H-1097 Budapest, Albert Flórián út 3/A)
  • Hajnalka Ledóné Darázsi DélKerTÉSz, H-6600 Szentes, Szarvasi út 3-B
  • Lajos Helyes Szent István University, Faculty of Agricultural and Environmental Sciences, Institute of Horticulture, H-2100 Gödöllő, Páter Károly utca 1.

DOI:

https://doi.org/10.18380/SZIE.COLUM.2016.3.2.25

Keywords:

Capsicum annuum, carotenoids, vitamin C, polyphenols, harvest time

Abstract

Sweet pepper is the most important vegetable crop of the Hungarian greenhouse industry. Production of red coloured cultivars, having very high nutritive value, is getting popular recently. Shading of plastic tunnels is a common practice in Hungary, but research about its effects on the nutritional characteristics of sweet pepper has just started. The objective of this study was to investigate the effect of different shading methods (shading paint, white, green, yellow and red coloured shade nets) on some nutritional characteristics of a red coloured kapia type pepper, under Hungarian climatic conditions cultivated in unheated walk-in plastic tunnels. Shade net colour slightly affected radiation and hence temperature conditions of the tunnels; especially ratio of supra-optimal temperature values (32 °C <) was changed. Dry matter content was not influenced by shading method, in contrary to sampling time which had a significant effect on this parameter. Vitamin C and total polyphenol contents were affected by both of these factors and also by their interaction; shading effect on these phytonutrients changed with harvest times. However, total carotenoid content was affected just by this latter factor. Heat stress, higher ratio of supra-optimal temperature values, increased total polyphenol concentration and decreased total carotenoid content. In overall, white shade net resulted sweet peppers with the best nutritive quality, but harvest time had a more pronounced effect on content of nutritive constituents than shade net colour.

Author Biography

  • Attila Ombódi, Szent István University, Faculty of Agricultural and Environmental Sciences, Institute of Horticulture, H-2100 Gödöllő, Páter Károly utca 1.

    ombodi.attila@mkk.szie.hu
    corresponding author

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Published

2016-12-05

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Article

How to Cite

Effect of coloured shade nets on some nutritional characteristics of a kapia type pepper grown in plastic tunnel. (2016). COLUMELLA – Journal of Agricultural and Environmental Sciences, 3(2), 25-33. https://doi.org/10.18380/SZIE.COLUM.2016.3.2.25

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