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All Journal Jurnal Ilmu Lingkungan Journal of Rural Development and Applied Technology
Taufik Taufikurahman
Institut Teknologi Bandung
Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Social Sciences

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Physiological strategies of Eichhornia crassipes (Mart.) Solms to tolerate Cr6+ accumulation, compared to a sensitive species Pistia stratiotes L. Taufik Taufikurahman; Andira Rahmawati; Muhammad Arief Ardiansyah; Dea Prianka Ayu Ilhamsyah; Serafina Rosanti
Jurnal Ilmu Lingkungan Vol 18, No 1 (2020): April 2020
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (495.592 KB) | DOI: 10.14710/jil.18.1.82-88

Abstract

Chromium in the form of hexavalent chromium (VI) has been used in some industry including leather tanning industry. The chemical has been known to be harmful to  living organisms. Therefore, it is important to treat wastewater from leather tanning industry before being discharged to the environment. The aim of this study is to examine ecophysiological strategies of  waterhyacinth (Eichhornia crassipes)  to tolerate Cr6+ accumulation in its tissue, compared to sensitive species water lettuce (Pistia stratiotes).  The plants  were cultivated in containers containing Hoagland medium and treated with some variation of Cr6+ concentrations of Cr6 i.e. 0, 40, 80 and 120 ppm for 14 days. Some parameters including CAT (catalase), Ascorbate peroxidase (APX), chlorophyll concentration and proline  in the plants were measured. The biomass yield of plant in Cr6+ stress was negative (-0.732 to -1.84 g/week) which indicated both E. crassipes and P. stratiotes  reduced their growth. The higher the concentration of Cr6+, the lower the chlorophyll contents in the leaves. The lowest of chlorophyll content was in 120 ppm (0.15 mg/g in P. stratiotes  and 0.12 mg/g in E. crassipes). The highest of CAT activity in E. crassipes was 109% in 40 ppm Cr6+, while in P. stratiotes  was 76% in 120 ppm. Proline content in both E. crassipes and P. stratiotes  were not different significantly. In general, E. crassipes plants have the ability to adapt to Cr6+ stress better compared to P. stratiotes which was severely damaged when grown in high Cr6+ concentration. Both plants can remediate waste fairly well  (level of elimination 62-68%) during the exposure period of 14 days to Cr6+ solution.
Optimizing Agriculture through Digital Transformation: The Role of BUMDes in Haurngombong Village, Sumedang District Taufik Taufikurahman; Oktofa Yudha Sudrajad; Mochamad Apri; RR. Deby A Rizkyani; Rizka Purnamawati; Tetep Ginanjar; Zelika R Noviana; Nanda Shofiyah Ulfa
Journal of Rural Development and Applied Technology Vol. 2 No. 1 (2025): Journal of Rural Development & Applied Technology Vol.2 No.1
Publisher : Center for Rural Areas Empowerment (P2D), Institut Teknologi Bandung

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Abstract

The primary challenge faced by farmers in Haurngombong Village is their low bargaining power in marketing agricultural produce, which is attributed to limited access to market information, capital, and distribution channels. To address this, the Center for Rural Empowerment (P2D), along with the Village-Owned Enterprise (BUMDes) Berbudi, initiated the Digital Platform Utilization Program in Haurngombong Village to strengthen the position of farmers as producers. This program aims to assist farmers in distributing and marketing their agricultural products through a digital platform, enabling them to determine a fairer selling price and expand their market network. Additionally, the program serves as a collaborative platform for farmer communities, such as the Women Farmers Group, and MSEs actors in the surrounding village area. The empowerment activities employ the Participatory Learning Activity (PLA) method, emphasizing participatory learning through lectures, discussions, and direct practice (learning by doing). The activities included initial socialization, a Focus Group Discussion (FGD), website design creation, product information collection, digital marketing training, and daily transaction recording. The program also promotes the active role of BUMDes Berbudi in assisting with product marketing, including participation in bazaars like Milangkala Desa Haurngombong and Jatifest 2023 at the ITB Jatinangor Campus. Although the program has yielded positive impacts, constraints remain, primarily related to farmers' limited access to technological devices and internet network. Further study is required to understand the correlation between the pattern of human resource (HR) utilization in agricultural activities and the effectiveness of utilizing and digitally marketing agricultural products.
Co-Authors Andira Rahmawati Dea Prianka Ayu Ilhamsyah Mochamad Apri Muhammad Arief Ardiansyah Nanda Shofiyah Ulfa Oktofa Yudha Sudrajad Rizka Purnamawati RR. Deby A Rizkyani Serafina Rosanti Tetep Ginanjar Zelika R Noviana