Respons Tomat Cherry (Solanum Lycopersicum Var. Cerasiforme) terhadap Konsentrasi Unsur Hara pada Fase Vegetatif dan Generatif Secarahidroponik Sistem Sumbu

Abstract

One of the solutions for urban farming (urban farming) is hydroponic cultivation, today the development of the world of agriculture, especially in the field of hydroponics is increasing rapidly. The growth and production of tomatoes with a good hydroponic system requires the right concentration and volume of nutrients. This reaserch aims to analyze the effect of nutrient concentrations on the growth phase of cherry tomatoes, to analyze the effect of nutrient concentrations on the morphological and physiological responses of cherry tomato plants and to analyze the effect of nutrient concentrations on hydroponic cherry tomato production. This research used a completely randomized non-factorial design with concentrations of nutrients, consisting of 5 levels: 800 ppm, 900 ppm, 1000 ppm, 1100 ppm and 1200 ppm. The results showed that nutrient concentrations had a significant effect on the generative growth phase, but had no significant effect on the vegetative growth phase of cherry tomato plants. Nutrient concentrations affect plant physiology, namely: crown wet weight in the generative phase, root wet weight in the generative phase, shoot dry weight in the generative phase, root dry weight in the generative phase and levels of vitamin C. Nutrient concentrations significantly affect the production of hydroponic cherry tomato plants, the optimum dose to produce the highest fruit weight is at a nutrient concentration of 930.91 ppm with a weight of 90.02 g. The use of nutrient concentrations above 930.91 ppm can reduce fruit weight per plant, namely at a nutrient concentration of 1100 ppm by 59.73 g and at a nutrient concentration of 1200 ppm by 55.70 g. There was an increase in fruit weight per plant by giving nutrient concentrations of 800 ppm to 1000 ppm by 24.61%.