Pengaruh Daya Lampu LED terhadap Pertumbuhan Bayam Merah (Amaranthus tricolor L.) pada Sistem Hidroponik Indoor

Abstract

Red spinach (Amaranthus tricolor L.) is one of the vegetable plants that is rich in nutritional content compared to other types of spinach that can be harvested at the age of 30 days. This study is about the Effect in LED (Light Emitting Diode) Lamp Power on the Growth of Red Spinach in Indoor Hydroponic Systems which was carried out from January to March 2022 in the Plant Physiology and Tissue Culture Laboratory, and the Organic Chemistry and Natural Materials Laboratory, Faculty of Mathematics and Natural Sciences, University of North Sumatra. This study aims to analyze the growth of red spinach that is treated in an indoor hydroponic system. This study used a Non-Factorial Randomized Block Design (RAK) consisting of six planting groups with control treatments exposed to sunlight, and five variations in LED lamp power of 6, 9, 12, 15, and 18 watts with a distance between the lamp and the plant of 20 cm with a duration of irradiation for 12 hours and the provision of AB Mix for 2 weeks once for 30 days. The results of this study indicate that the use of LED light power significantly increased the number of leaves by 26 strands, wet weight 68,12 g, dry weight 15,55 g, anthocyanin content 17,19 mg/g, and fiber content 46,08% while for plant height the highest results were obtained in the control treatment 29,6 cm.