Growth and Yield Performance of Pechay (Brassica napus L.) var. Black Behi Using the CHRRO Hydroponic System

Hydroponic cultivation offers sustainable agricultural solutions, but the efficiency of water sources in hydroponic systems is underexplored. Understanding these sources is crucial for optimizing resource use, mitigating environmental impact, and ensuring long-term sustainability in hydroponic agriculture. This study aimed to assess the growth and yield performance of pechay (Brassica napus L.) var. Black Behi using hydroponic systems with different water sources: tap water (T1), unfiltered wastewater (T2), and filtered wastewater (T3). The research evaluated the sustainability of the CHRRO hydroponic system, which exclusively uses filtered wastewater (T3) for hydroponic cultivation. Using a Completely Randomized Design, 15 plants per treatment (T1, T2, and T3) were studied. The study measured growth parameters, including plant height, number of leaves, leaf width, and weight, and assessed the acceptability of the CHRRO hydroponic system in Bacsil, San Juan, Ilocos Sur, using standardized rating forms from experts in agriculture, science, electronics, and farming. Pechay plants in filtered wastewater (T3) exhibited superior growth and yield compared to those in tap water (T1) and unfiltered wastewater (T2). ANOVA confirmed significant differences (p < 0.05), with T3 being the most effective water source. The CHRRO system, utilizing filtered wastewater exclusively, received high acceptability ratings (mean rating: 4.56). However, Kendall's W indicated low agreement among experts (W= 0.133, p = 0.257), suggesting variability in evaluations due to differing expertise. The CHRRO system, which uses filtered wastewater, is ideal for hydroponic cultivation, and future research should include microbial analysis, nutrient profiling, economic and environmental assessments, continuous monitoring of water parameters, and expert feedback.