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All Journal Jurnal Agrotropika Jurnal Sains Indonesia
Lestari, Andriani Dwi
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Energy Mathematics Social Sciences Other

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Pengaruh Pencemaran Limbah Detergen Terhadap Ekosistem Perairan Lestari, Andriani Dwi
Jurnal Sains Indonesia Vol. 3 No. 1 (2022): Volume 3, Nomor 1, 2022 (Maret)
Publisher : PUSAT SAINS INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59897/jsi.v3i1.72

Abstract

Detergent is a product that has the use to remove dirt when purifying clothes. If detergents are excessively discharged into water sources, it can have a negative impact on water biota, such as reducing oxygen levels in water and damaging fish organs because it can cause water pollution. Where the higher the use of detergents, the lower the intake of dissolved oxygen in the water. This causes disruption of the process of respiration in the ecosystems such as fish that can cause death in fish. This type of research is qualitative research using experimental methods conducted by observing the movement of fish in water conditions without detergents up to detergent for 10 minutes. The object of this study is ornamental fish that are treated without the addition of detergents and then added one spoon of detergent, two spoons of detergent, up to three spoons of detergent. The parameters studied were the condition of the fish when added with detergent with different treatments. The results showed that the difference in the concentration of determination on the condition and life of the fish. The higher the concentration of detergent, the fish will live. Then seen in conditions, then the fish will be disturbed breathing, namely on the gills. Gills are vital organs of fish respiration. organ damage and fish skin that becomes slimy is also due to the detergent content. Until the fish die because of contaminated toxic materials.
Pengaruh Ekstrak Daun Senduduk Bulu (Clidemia hirta L.) terhadap Perkecambahan dan Pertumbuhan Gulma (Praxelis clematidea) Lestari, Andriani Dwi; Pujisiswanto, Hidayat; Susanto, Herry; Sriyani, Nanik
JURNAL AGROTROPIKA Vol. 22 No. 1 (2023): Jurnal Agrotropika Vol 22 No 1, Mei 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v22i1.7370

Abstract

Weeds are plants whose existence is not expected by farmers because they interfere with cultivated plants. But there are weeds that can produce phenolic compounds such as Clidemia hirta L which can be used as bioherbicides. This study aims to determine the effect of Clidemia hirta L. leaf extract on the germination and growth of Praxelis clematidea weeds. The research was carried out from June 2021 to September 2021 at the Weed Science Laboratory and Integrated Field Laboratory, Faculty of Agriculture, University of Lampung. This study used a completely randomized design (CRD) method with 6 treatments with concentrations of Clidemia hirta L leaf extract, namely 0; 1.5; 3.0; 4.5; 6.0; and 7.5%. Each treatment was repeated 6 times to obtain 72 experimental units. The observed variables are germination, crown height, root length, dry weight, and weed poisoning level. The data obtained were analyzed by analysis of variance and continued with the Least Significant Difference Test (LSD) at the 5% level. The results showed that the germination of Praxelis clematidea weed was significantly inhibited by the treatment of Clidemia hirta L leaf extract with a concentration of 1.5; 3.0; 4.5; 6.0; and 7.5%. While concentrations of 3.0%, 4.5%, 6.0%, and 7.5% Clidemia hirta L. leaf extract  inhibited the growth of Praxelis clematidea weeds in the greenhouse. Key words:  Clidemia hirta L., extract, Praxelis clematidea, germination, growth
Co-Authors Herry Susanto Hidayat Pujisiswanto Nanik Sriyani