Pengaruh ekstrak tomat dan media tanam terhadap pertumbuhan dan kadar vitamin C microgreen lobak (Raphanus sativus L.)

Agustini, Aulia Nurilah (2023) Pengaruh ekstrak tomat dan media tanam terhadap pertumbuhan dan kadar vitamin C microgreen lobak (Raphanus sativus L.). Sarjana thesis, UIN Sunan Gunung Djati Bandung.

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Abstract

Microgreen are young edible vegetables that have a short production cycle (about 14 days) and grow in a tiny space. Radish microgreen are rich with antioxidants and antimicrobial effect. The growth of microgreen are influenced by several factors such as the type of growing medium, fertilization, humidity, light, and temperature. This study aimed to determine the effect of tomato extract and planting media and analyzed their interaction on growth and vitamin C levels of radish microgreen. The method used in this study was laboratory experimental with Completely Randomized Factorial Designs with two-factors. The first factor was determined the concentration of tomato extract including 0 g/L, 5 g/L, 10 g/L, and 15 g/L. The second factor is analyzed the growing medium of cocopeat, zeolite, and husk charcoal. Parameters measured included germination percentage, plant height, wet weight and dry weight, chlorophyll, carotenoids, and vitamin C. Data analysis was performed using a two-way ANOVA test and if there is a significant difference, then proceed with a further test using Duncan's New Multiple Range test. The results showed that tomato extract treatment with different concentrations had no significant effect on growth parameters and vitamin C of radish microgreen, but had a significant effect on chlorophyll and carotenoid parameters. The different treatments of growing media affected growth parameters, chlorophyll and carotenoids, and vitamin C, but did not significantly differ in germination parameters. Rice husk charcoal media produced the highest microgreen, reaching an average of 11 cm. Rice husk charcoal also produced the highest average 8.8 gram fresh weight and 0.5 gram dry weight. Zeolite media produced the highest levels of chlorophyll, carotenoids and vitamin C, namely 25.52 mg/100 g, 73.01 mg/100 g and 62.78 mg/100 g. The concentration of tomato extract which significantly affected chlorophyll and carotenoids, namely at 15 g/L, produced the highest levels of chlorophyll and carotenoids reaching 77.96 mg/100 g and 28.90 mg/100 g. The combination treatment of growing media with tomato extract interacted significantly with chlorophyll, carotenoids, and vitamin C, while the other parameters did not produce interactions.

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