Optimization of Mustard Pakcoy Growth: The Influence of Media Composition and Coconut Water Concentration

Abstract

This research aimed to investigate the effect of different media compositions and varying coconut water concentrations on the growth and yield of mustard pakcoy (Brassica rapa var. parachinensis). The study was conducted in Modong Village, Sidoarjo Regency, with further laboratory analysis at the Faculty of Science and Technology, Universitas Muhammadiyah Sidoarjo. The experimental design followed a Randomized Block Design (RAK) in a factorial arrangement with two primary factors (media composition and coconut water concentration) and four replications. While no significant interaction was observed between the media composition and the coconut water concentration, independent effects of each factor were notable. The media composition significantly influenced the leaf count at 7, 28, and 35 days after planting (DAP) and the wet weight at 35 DAP. The optimum media composition included 2 kg of topsoil, 90 g of goat manure, and 45 g of rice husk charcoal per polybag, which resulted in the highest leaf count and wet weight. Additionally, coconut water concentration significantly affected the stem diameter at 35 DAP, with a concentration of 100 ml per liter of water yielding the maximum stem diameter. The findings imply potential growth optimization strategies for mustard pakcoy, enhancing yields via targeted alterations in growing media and the use of coconut water, which could be of international interest to agronomists, horticultural scientists, and sustainable agriculture practitioners.