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Jurnal Serambi Biologi
Published by Universitas Negeri Padang
ISSN : -     EISSN : 27222829     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
Artikel ilmiah yang dipublikasi adalah artikel dalam bidang biologi (biodiversitas, biosistematika, ekologi, fisiologi, genetika dan bioteknologi, biokimia) yang meliputi semua bentuk mahluk hidup mulai dari mikroba, fungi, tumbuhan, hewan, manusia dan virus
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biologi Perkembangan
Articles 187 Documents
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Efektivitas Infusa Daun Ruku-ruku (Ocimum tenuiflorum L.) Teknologi Nano sebagai Larvasida Alami terhadap Mortalitas Larva (Aedes aegypti L.) Fitriyani, Dini; Razak, Abdul; Satria, Rijal; Fransisco Pratama, Sandi
Jurnal Serambi Biologi Vol. 9 No. 2 (2024): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/srmb.v9i2.356

Abstract

Dengue fever is caused by the dengue virus which is transmitted through mosquito vectors Aedes aegypti. Vector control is one of the steps to prevent transmission by breaking the vector life cycle using abate. However, its use causes several effects, namely resistance to insects, environmental pollution and insecticide residues. Natural larvicides are an alternative by using plants such as ruku-ruku. Efforts to increase the active ingredient content of ruku-ruku leaves can be done using nanotechnology which has the advantage of increasing the effectiveness and stability of an active ingredient in plants. This research aims to determine the effectiveness of natural larvicide and the best concentration of nanotechnology ruku-ruku leaf infusion on larval mortality Aedes aegypti. This research used a Completely Randomized Design (CRD) consisting of 5 treatments and 5 replications. The treatments carried out consisted of Control+ (0.01 gram abate), Control- (aquadest), and 3 treatments in the form of ruku-ruku leaf infusion (diluted using nanobubbles) with concentrations of 5%, 15% and 25%. The results of the probit analysis obtained LC50 is 23.829% and the LT50 is 48 hours. The conclusion of this study shows that nanotechnology ruku-ruku leaf infusion is effective on larval mortality Aedes aegypti.
Efektivitas Larvasida Alami Ekstrak Daun Alpukat (Persea americana Mill.) dengan Teknologi Nano terhadap Mortalitas Larva Aedes aegypti L. Cania Dewi, Rahmawitra; Razak, Abdul; Satria, Rijal; Hilda Putri, Dwi
Jurnal Serambi Biologi Vol. 9 No. 2 (2024): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/srmb.v9i2.357

Abstract

One of the vectors of dengue fever, the Aedes aegypti mosquito, can be controlled by using synthetic chemical mosquito repellents such as 1% abate (temephos). However, the continuous use of abate 1% can cause water pollution and human poisoning. To overcome the side effects of using synthetic larvicides, plant extracts can be used as natural larvicides, one of which is avocado leaf. One of the efforts to increase the content of active ingredients in avocado leaves can be done by using nano bubbles. This study aims to determine the effectiveness of avocado leaf extract (Persea americana Mill.) on the mortality of Aedes aegypti larvae. This study used a completely randomized design (CRD). There are Control+ and Control- and 3 treatments in the form of avocado leaf extract diluted with nanobubble water with concentrations of 5%, 10% and 15%. The test material used in this study was Aedes aegypti instar III mosquito larvae. Observations were made for 48 hours. Data were analyzed by probit analysis to determine LC50 and LT50, One Way ANOVA and Post Hoc BSD test. The results showed significant differences (P < 0.05). The results of probit analysis obtained LC50 is 5.326% and LT50 value is 35 hours. The conclusion of this study is that avocado leaf extract natural larvicide with nano technology is effective on the mortality of Aedes aegypti larvae.
The DECOMPOSITION RATE OF MANGROVE FOREST LITTER IN NAGARI PILUBANG, SUNGAI LIMAU SUB DISTRICT PADANG PARIAMAN DISTRICT : - putri, irma leilani eka
Jurnal Serambi Biologi Vol. 9 No. 2 (2024): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/srmb.v9i2.359

Abstract

Mangrove forests are very important coastal ecosystems worldwide as they provide a wide range of ecological, economic, and social benefits. One of the key components of mangrove forest ecosystems is mangrove litter, which consists of leaves, twigs, and small organisms that fall from mangrove trees. This litter is a food source for decomposing organisms, such as crabs and mollusks, and contributes to the nutrient cycle of the mangrove ecosystem after going through the decomposition rate process. This study aims to determine the decomposition rate of mangrove litter in Nagari Pilubang, Sungai Limau District, Padang Pariaman Regency. This research was conducted in September 2023-January 2023. This research method uses a litter bag to store leaf litter for 30 days and collection is done every 10 days with 3 collections and then the rate of decomposition is calculated. The results showed that on the last day the decomposition rate at station 3 was 0.365% which was higher than stations 1 and 2 which were only 0.418% and 0.412% respectively.
A Produksi Serasah Hutan Mangrove di Nagari Pilubang, Kecamatan Sungai Limau, Kabupaten Padang Pariaman : Produksi Serasah Hutan Mangrove di Nagari Pilubang, Kecamatan Sungai Limau, Kabupaten Padang Pariaman Pratiwi, Amanda Elza
Jurnal Serambi Biologi Vol. 9 No. 2 (2024): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/srmb.v9i2.362

Abstract

Litter is organic material that falls into the surrounding waters or soil and is an important part of the fertility of the mangrove ecosystem in the transfer of organic material from vegetation into the soil. The aim of this research is to determine the amount of mangrove forest litter production in Nagari Pilubang, Kecamatan Sungai Limau, Kabupaten Padang Pariaman. This research is descriptive in nature and was carried out from January-April 2024. The litter production method used was the litter-trap method. Mangrove litter collection was carried out at 3 predetermined research stations with 3 sub stations each. Then 3 litter-traps measuring 1x1 m2 were installed at each station which were installed under the canopy of the mangrove stand at a height of 1 - 1.5 m above ground level. The litter production samples were taken within 10 days 6 times and then placed in the oven at 80oC until the weight was constant. Then the litter mass calculation was carried out within 2 months. The results of this research show that the average litter production in the Nagari Pilubang, Kecamatan Sungai Limau, Kabupaten Padang Pariaman is 5.31 gr/m2/day.
Mangrove Community Structure In Teluk Buo, Bungus, Padang Regency, West Sumatera Faristy, Annisya Fhadilah Putri; Lailani Eka Putri, Irma
Jurnal Serambi Biologi Vol. 9 No. 3 (2024): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/srmb.v9i3.351

Abstract

Mangroves are forest vegetation that grows between the tidal lines, so mangrove forests are also called tidal forests. The existence of mangrove forests in the ecosystem is very important because it has ecological and economic potential. The location of the mangrove ecosystem in a transitional area between sea and land areas causes mangroves to frequently experience disturbance for human purposes and results in mangrove areas experiencing damage and land narrowing which has an impact on decreasing their diversity. This research aims to analyze the structure of the mangrove community in the research area. The method used in this research is the quadratic method (Quadrat Sampling Technique) by creating 6 plots facing each other. Observation of mangrove vegetation uses a plot measuring 10 x 10 meters for trees, 5 x 5 meters for saplings and 2 x 2 meters for seedlings. The results that can be concluded from this research are that the mangrove forest community in Teluk Buo consists of Rizophora apiculata, Lumnitzera littorea, Brugeira gymnorhiza, Setaria palmifolia, Euterpe oleracea mart, Nypa Fruticans, and Bruguiera cylindrical. The Rhizophora apiculata species dominates in the study area, characterized by the highest importance at all growth levels. INP at tree level was 166%, sapling 219% and seedling 127%. The diversity index (H') value in the study area is low (1.749) with a high level of uniformity (0.8986).
Effectiveness of Ecoenzyme Mosquito Repellent Combination of Lime Peel And Papaya Leaf Based Fitri, Wahyuni; Satria, Rijal
Jurnal Serambi Biologi Vol. 9 No. 3 (2024): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/srmb.v9i3.364

Abstract

Mosquitoes are vectors of various diseases in humans, namely filariasis and encephalitis by Culex mosquitoes, malaria by Anopheles mosquitoes, and dengue fever by Aedes mosquitoes. The use of chemicals in repelling and killing mosquitoes, is very harmful to the environment and also causes resistance in mosquitoes. This study aims to test the potential of eco-enzyme as a mosquito repellent, with basic ingredients of orange peel and papaya leaves. This type of research is an experimental study that uses Complete Randomized Design (RAL) in 2x5 Factorial. The concentrations used in this study were 100%, 2.5%, 5%, 10%, and 20%. Data were analyzed using Anova and DNMRT 5% follow-up test. In the research conducted, the results were obtained, namely in the trial of lime ecoenzyme combination of papaya leaves at a concentration of 100%, 2.5%, 5%, 10% and 20% there were no mosquitoes perched on the test arm, then the papaya leaf ecoenzyme trial there was 1 mosquito that perched.
Antibiotic Sensitivity Test Against Soil Bacteria Exposed to Disinfectants in 2x11 Kayu Tanam District, Padang Pariaman Regency, West Sumatera Prima, Rika; Vestimarta, Aldi Wahyuda; Putri, Dwi Hilda
Jurnal Serambi Biologi Vol. 9 No. 3 (2024): Jurnal Serambi Biologi
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/srmb.v9i3.367

Abstract

In Indonesia, the population growth rate is high and requires rapid and sustainable improvements in the agricultural sector. Improvements in the agricultural sector require various supporting facilities, namely agricultural tools, fertilizers, chemicals including pesticides. Pesticides are chemicals or mixtures of several chemicals that are used to control or eradicate plant pest organisms. Specific uses are an inseparable part of the agricultural system. Pesticides are used as a preventive measure to control pests/diseases. The research carried out included testing on soil samples, testing bacterial turbidity, and testing inhibition zones using antibiotics. This research is descriptive research. This research was carried out from March to June 2023, at the Research Laboratory, Department of Biology, Faculty of Mathematics and Natural Sciences, Padang State University. From the research carried out on soil sample tests, what was observed was the color, shape, height and edges of each different type of bacterial colony. The turbidity test was obtained in accordance with Macfarlan standards. Then the zone inhibition test uses antibiotics which use positive, negative and spectrum antibiotics. From the table of inhibition zones that are formed, it can be seen that in each bacterial colony, each antibiotic works according to the type of antibiotic, positive antibiotics inhibit the growth of gram-positive bacteria and negative antibiotics inhibit the growth of gram-negative bacterial colonies, while spectrum antibiotics can inhibit the growth of gram-positive bacteria and bacteria. gram negative.

Page 19 of 19 | Total Record : 187

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