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  • Author or Editor: Stephanie Cruz x
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Numerous compact pepper (Capsicum annuum) cultivars are available for home gardening. However, evaluations under different environmental conditions are limited. This study aimed to characterize growth and productivity of 14 compact pepper cultivars grown indoors under environmental conditions that simulated a residential space (11 mol·m−2·d−1 provided by white of light-emitting diode fixtures, constant 22 °C, and moderate relative humidity of 40% to 60%) and in a greenhouse with sunlight only. Plants in the greenhouse were generally larger in size and produced more fruit [both in number and total fresh weight (FW)] than those grown indoors. For example, growth index, which is a measure of canopy volume that integrates shoot height and width, and fruit FW were up to 250% and 621% higher in the greenhouse than indoors, respectively. ‘Fresh Bites Red Improved’ and ‘Sweet Yellow’ had the highest fruit FW per plant when grown in the greenhouse (695 g) and indoors (483 g), respectively. All cultivars evaluated in this study are recommended for gardening under sunlight, and most for indoor gardening except for Cosmo, Pinata, and Yellow Tomato, which had the lowest fruit FW when grown indoors (61, 59, and 52 g) and thus, should not be recommended to consumers aiming to maximize fruit yield. In addition, ‘Cayennetta’, ‘Cheyenne’, ‘Hot Tomato Red’, ‘Pinata’, ‘Spicy Jane’, and ‘Sweet Yellow’ were affected by intumescence, which could negatively affect indoor gardening experiences until widespread recommendations to mitigate this disorder become available.

Open Access