Photoselective Shade Netting in a Sweet Pepper Crop Accelerates Ripening Period and Enhances the Overall Fruits Quality and Yield | ||
| Journal of Agricultural Science and Technology | ||
| Article 13, Volume 24, Issue 5, 2022, Pages 1171-1186 PDF (1007.87 K) | ||
| Document Type: Original Research | ||
| Authors | ||
| Josefa López-Marín1; Amparo Galvez1; Francisco del Amor Saavedra1; Francisco Javier Manera Bassa2; Julio Carrero-Blanco3; Jose Brotons Martínez* 4 | ||
| 1Department of Crop Production and Agri-Technology, IMIDA, C/ Mayor s/n. 30150 La Alberca-Murcia, Spain. | ||
| 2Department of Physics and Computer Architecture, Miguel Hernandez University, Orihuela, Alicante, Spain. | ||
| 3Department of Mechanical, Materials and Manufacture Engineering, Universidad Politécnica de Cartagena, Cartagena, Spain. | ||
| 4Department of Economic and Financial Studies, Miguel Hernandez University, Elche, Alicante, Spain. | ||
| Abstract | ||
| Photoselective nets are used to protect horticultural plants from sunburn and prolong the cropping period in conditions of excess light. In this work, we studied the influence of four photoselective shading nets (Pearl 30, Red 30, Silver 30, Red 40), a standard black-colored net (Black 35), and a control (no cover) on the evolution of color during the ripening of two types of pepper, namely, Lamuyo and California. For this purpose, the evolution of the colors of the fruit was followed from the beginning of their formation until the harvest, and was correlated with the total radiation and the temperature. The plant material used were peppers of the California type -cultivars Bendigo and Cayetano- and of the Lamuyo type, cultivars Alcudia and Pompeo. The results showed that the rate of change of the pepper coloration depended on the net used in the greenhouse. The speed of the change in color from green to red was more dependent on the cultivar and the total radiation, as conditioned by the different photoselective nets, than on the type of pepper. The greatest differences were between the control (without a net) and the black net, the increase in the red color of the peppers being faster in the former. Radiation values below 75 W m-2 or greater than 110 W m-2 negatively affected the yield. The temperature below the net was not affected significantly by the type of net, and thus its effect on the different cultivars was similar. | ||
| Keywords | ||
| CIELAB; ΔE; Radiation; Sweet pepper color | ||
| References | ||
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