Effect of Boron Fertilizer and of Potassium Fertilizer on Growth and Production of Purple Eggplant (Solanum Melongena L.)

Abstract

This study aims to determine the response of boron and potassium fertilizers on the growth and production of purple eggplant (Solanum melongena L.). The research was conducted in the village of Jiken, Kec. Tulang, Sidoarjo Regency and continued in the microbiology and biotechnology laboratory of the Muhammadiyah University of Sidoarjo. Starting from February to May 2020. The experiment was arranged factorially using a randomized block design followed by the 5% BNJ test consisting of 2 factors. The first factor is boron fertilizer with levels of 0 kg/ha, 6 kg/ha and 12 kg/ha. The second factor was potassium fertilizer which consisted of 3 treatment doses, namely 50 kg/ha, 100 kg/ha and 150 kg/ha. The variables observed were plant height, leaf area, number of leaves, number of fruits, fruit weight, fruit length, fruit sweetness,antioxidant levels. The results showed that there was no significant interaction in each treatment, this is because boron fertilizer decreased at the last observation in the study. While the antioxidan test in this study used free radical damping method with DPPH with wavelength of 517 nm using spectrophotometer.