Effect of shading screens on the production and quality of ‘Smooth Cayenne’ pineapple

Abstract

In pineapple cultivation, it is common to cover the fruit with newspaper, in order to avoid scalding caused by sunburn. However, the scarcity of material and the large labor force required have led to the search of control alternatives. This study aimed to evaluate the use of shading screens in the production and quality of ‘Smooth Cayenne’ pineapple. A randomized blocks experimental design was used, with five treatments (fruits covered with newspaper and plants covered with screens with 35, 40, 50 and 80 % of shading), four replicates and two seasons (summer and winter). In the summer, the use of screens with 50 % of shading provided average gains of 22 and 39 % of total and commercial mass of crowned fruits per plant and gains of 22 and 40 % of total and commercial yield per hectare, respectively. The gradual increase in shading intensity resulted in a decrease in the qualitative attributes of the fruits, when compared to covering the fruits with newspaper. Screens with up to 50 % of shading can replace newspaper when covering the fruits to avoid scalding.

Impact of the Combination of Chemical and Organic Fertilization on the Growth and Yield of Pineapple under Two Shade Net Conditions

“…The use of shade netting in pineapple cultivation to protect fruits from sunburn due to high radiation and improve yield has been reported [19][20][21]. However, there are few studies reporting on the effect of shading or a lack of light [33] from planting to harvest.…”

“…In certain regions of pineapple cultivation, where sunlight is intense, the installation of shade netting after floral induction is common to prevent severe fruit sunburn and preserve quality [19,20]. Additionally, it has been reported that the use of shade nets increases pineapple crop productivity [21]. However, there is limited information on plant responses when shade netting is installed from the beginning of planting.…”