Pengaruh Konsentrasi Nutrisi dan Hormon Giberelin terhadap Pertumbuhan dan Hasil Tomat Ceri Menggunakan Sistem Hidroponik Substrat dengan Irigasi Tetes

Abstract

The purpose of this research was to determine the right concentration of nutrients and gibberellin hormon for the growth and yield of cherry tomatoes using a substrate hydroponic sistem with drip irrigation. This research will be carried out in April-August 2023 at Green House Agrokusuma, Faculty of Agriculture, Jember University. The design used in the study was a complete randomized design split splot consisting of the main plot and subplots. The main plot is the concentration of AB mix nutrients with 3 levels, namely H1 = 2000 ppm, H2 = 2200 ppm, and H3 = 2400 ppm. While the subplot is the concentration of gibberellins with 4 levels, namely G0 = 0 ppm, G1 = 75 ppm, G2 = 100 ppm, and G3 = 125 ppm. If the results show a real difference, the Duncan Multiple Range Test (DMRT) is carried out with α=5%. The research results showed that the best treatment combination was provided with nutrients with a concentration of 2200 ppm and gibrelin with a concentration of 100 ppm (H2G2) which resulted in a fresh fruit weight of 1298.4 grams. Meanwhile, providing a nutrient concentration of 2200 ppm showed the best results for the parameters of plant height, number of fruit, fruit set percentage and fresh weight, namely 102.83 cm, 178 fruit, 93.27% and 1064.70 grams respectively. Meanwhile, giving a gibberellin hormone concentration of 100 ppm showed the best results for the parameters of number of fruit, fruit set percentage, and fresh weight of fruit, namely 165.22, 94.40% and 1020.37 grams respectively.