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INDONESIA
Jurnal Biologi Tropis
Published by Universitas Mataram
ISSN : 14119587     EISSN : 25497863     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
Jurnal Biologi Tropis (ISSN Cetak 1411-9587 dan ISSN Online 2549-7863) diterbitkan mulai tahun 2000 dengan frekuensi 2 kali setahun oleh Program Studi Pendidikan Biologi PMIPA FKIP Universitas Mataram, berisi hasil penelitian dan ulasan Ilmiah dalam bidang Biologi Sains.
Arjuna Subject : -
Articles 2,562 Documents
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Response of Cayenne Pepper and Red Pepper Plants to The Concentration of Orrin Liquid Fertilizer on Entisol Soil Fikranti, Annisa Anjung; Mulyati, Mulyati; Silawibawa, I Putu
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i4.6482

Abstract

This study aims to determine the effect of orrin liquid fertilizer on the growth and yield of cayenne pepper and red peppers on Entisol.  The research method used is an experimental method, carried out on farmer-owned land in Kediri village, Kediri District, West Lombok Regency from June to October 2023. The study consisted of two experimental units consisting of one unit for cayenne pepper and another unit for red chili, The experimental design used was a randomized group design, with the treatment of orrin liquid fertilizer concentration (0, 10, 20) ml / L Each treatment was repeated three times and the data observed were analyzed using analysis of variance, while the different treatment was further tested using BNJ 5%. The outcomes showed that the treatment of orrin fluid manure application didn't influence the development of cayenne pepper and red bean stew plants which include: plant level, number of leaves and number of stem branches), yet impacted the yield parts which include: organic product weight and number of natural products. While the timeframe of realistic usability of cayenne pepper can arrive at 35 days and red pepper 45 days without decay.
Physical Characteristics of Bamboo and Aren’s Midrib Crafts Waste as Hydroponic Growth Media Amaliah, Wenny; Dewi, Endang Purnama; Saputra, Oki
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i1.6483

Abstract

The critical aspect of planting media is providing oxygen to the root; hence, the growing media should have sufficient porosity for air circulation for the plants, especially the root, and be able to store water and air. Krei craft waste from bamboo and aren’s midrib can be used as hydroponic growing media. This study aims to determine the physical characteristics of craft waste from bamboo and aren’s midrib as hydroponic growing media. The characteristics of hydroponic growing media from bamboo and aren’s midrib waste include water content, bulk density, porosity, and water holding capacity (WHC). The results of this study indicated that the values of water content, bulk density, porosity, and water holding capacity (WHC) of bamboo were 9.94%, 0.215 g/cm3, 81.6%, and 172%, and aren’s midrib were 10.07%, 0.241 g/cm3, 77.0%, and 241%, respectively. According to these results, it can be concluded that craft waste from bamboo and aren’s midrib is suitable as a hydroponic planting media.
Spatial Distribution of Mangrove Density in Gili Gede, West Lombok Regency Sari, Dian Apriana; Virgota, Arben; Sukiman, Sukiman; Farista, Baiq
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.6486

Abstract

Gili Gede hosts a vital mangrove ecosystem, essential for the community and protecting coastal areas from large waves. However, increasing development and human activities in and around the mangrove areas threaten their distribution and extent. This study aims to map the spatial distribution, density, and area of mangroves on Gili Gede. Sentinel-2A satellite imagery was utilized with the Normalized Difference Vegetation Index (NDVI) method, and the image data were validated using hemispherical photography. Environmental parameters measured included sediment salinity, temperature, pH, humidity, NPK nutrients, and substrate type. Additional data were gathered on slope, buffer distances, and through semi-structured interviews using purposive sampling. The findings revealed that the mangrove density on Gili Gede is predominantly sparse, covering 15.56 hectares or 77.07% of the total mangrove area. Medium-density mangroves span 3.45 hectares or 17.09%, while dense mangroves occupy the smallest area, 1.18 hectares or 5.84%. Mangroves are distributed across the northern, western, and eastern sides of Gili Gede. The study identified 22 species of mangroves, both true and associated, across 14 families. Environmental factors influencing the distribution, density, and extent of mangroves across three locations include sediment salinity, temperature, pH, humidity, and nutrient content (NPK), as well as substrate type, slope, and anthropogenic influences such as human activities and the proximity of settlements to the mangrove ecosystem.
Identification of Coliform Bacteria on Ice Crystal in Langsa City Sitorus, Siti Rahmawati; S. Pandia, Ekariana; Atmaja, Teuku Hadi Wibowo
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i1.6491

Abstract

Water is the second most important element for life after air. Water is a clear liquid, odorless, colorless, and tasteless. Water is a basic need for living creatures, especially drinking water. One way of processing drinking water is by freezing it into ice. Ice cubes are a food that is widely known and is usually considered safe for consumption. Coliform bacteria serve as a general marker of contamination in food and water. Coliform bacteria found in the human body can cause several diseases, including diarrhea. The aim of this research was to confirm the presence of coliform bacteria, measure the level of contamination, and identify the specific type of coliform bacteria that contaminated crystal ice from three ice producers located in Langsa City. This research is descriptive in character. Ice crystal samples were tested using the Most Probable Number (MPN) approach. Furthermore, bacteria were identified through microscopic analysis using the gram staining method and biochemical testing, especially IMViC. Each ice crystal sample showed coliform contamination, exceeding the precautionary limits set out in Minister of Health Regulation number 492 of 2010. The highest amount of contamination was 6 MPN/100mL and the lowest amount of contamination was 4 MPN/100 mL. There were 2 types of coliform bacteria found in this study, namely: Escherichia coli and Enterobacter aeroganes.
Identification of Pests and Diseases of Calathea Ornamental Plants in Ngledoksari Village, Karanganyar Hanik, Nur Rokhimah; Cahyanti, Fiky Ariska; Wahyuni, Tri
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i1.6498

Abstract

Maintaining ornamental plants is a hobby that many people do as a refreshing activity. One type of ornamental plant is calathea, which is an ornamental plant that has many leaves and attractive patterns. Because there are so many people interested in calathea ornamental plants, care is needed that can produce optimal growth of calathea so that it has a high selling value. Calathea with high sales value usually has a combination of several factors, including the uniqueness of the variety, the beauty of the leaves, the health of the plant, and the level of difficulty in maintaining it. The aim of this research is to determine pests and diseases on Calathea ornamental plants in Ngledok Sari Village, Karangayar. The method used is observation and interviews with sources who are considered competent in their fields. The research results identified snail/snail pests, Paracoccus marginatus (mealybugs), caterpillars, spider mites, and grasshoppers as well as diseases including chlorosis/nutrient deficiencies and leaf burns due to direct sunlight which were documented in 22 photo samples. It is hoped that this research can be used as a reference source and studies for further research.
Viability of Soybean Seeds (Glycine max L Merril) under Seed Coating Treatment with Mangosteen Peel Extract using Different Extraction and Concentration Methods Zumani, Darul; Hakim, Abdul
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i1.6500

Abstract

Soybean seeds during storage experience deterioration marked by a decrease in viability; seed coating is a method that can be used to inhibit this deterioration process during storage. Mangosteen peel is an agricultural waste known to contain antioxidants and is not widely utilized. In this study, soybean seeds coated with mangosteen peel extract using different extraction methods and concentrations, and stored for four months, were tested for viability. The aim is to determine the best extraction method and concentration to inhibit the deterioration rate during seed storage. In this experiment, a split-plot design was used with the extraction methods of maceration and soxhlet as the main plots and concentrations of 0%, 10%, 20%, 30%, 40%, and 50% as the subplots. Data were analyzed using the F Test followed by Duncan's multiple range test. The research results conclude that the extraction method of mangosteen rind and its extract concentration as seed coating materials interactively affect the viability and early growth of soybean seeds. At the same concentration level of mangosteen peel extract, the soxhlet extraction method showed better results compared to the maceration extraction method in inhibiting the deterioration rate of seeds during storage. Seed coating using 40% mangosteen rind extract produced by the soxhlet extraction method was proven to maintain the viability of soybean seeds during storage.
Identification of Pests and Diseases on Anthurium Jemani Ornamental Plants in the Ngledoksari Tawangmangu Tourism Hanik, Nur Rokhimah; Fitriani, Rindi Diah Ayu; Oktavianingtyas, Desty
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i1.6501

Abstract

Anthurium decorative plants are presently exceptionally famous among fancy plant darlings, both from the appeal of the kind and variety and the exorbitant cost. In spite of the fact that nuisances and sicknesses in anthurium are not extremely upsetting, assuming left unrestrained it will significantly impede the magnificence, hinder development and be unfavorable to authorities and venders/business people of these elaborate plants. The motivation behind this study was to decide the sorts of nuisances and sicknesses that assault anthurium plants. This exploration was completed in the Desa Wisata NgledoksariTourism Town, Tawangmangu Regime, Karanganyar Rule, for 30 days from Saturday, December 01 to December 30, 2023. This study utilized 17 examples of Anthurium plants. The apparatuses utilized were cellphone cameras and writing material. The factors that will be noticed are nuisances and sicknesses that assault Anthurium. This examination utilized perception and interview methode, the information got were broke down by subjective clear. The consequences of this study found a few vermin and illnesses on anthurium establishes that made the plant leaves and blossoms have openings, withered, yellowed spots, foul, and caused hindered development. The irritations found were caterpillars and snails, while the sicknesses included growth, chlorisis, leaf rust, anthracnose, wavy leaves, and consumed leaves.
The Relationship Between Personal Hygiene and Economic Level on The Incidence of Scabies in Nur El Haq Modern Islamic Boarding School Students Yusuf, Andini; Hadi, Santriani; Murfat, Zulfitriani; Syamsu, Rachmat Faisal; Makmun, Armanto
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i1.6503

Abstract

The study, entitled " The relationship between personal hygiene and economic level on the incidence of scabies in Nur El Haq modern Islamic boarding school students". was conducted from November 2023 to January 2024. This study aims to determine the relationship of personal hygiene and economic level to the incident of scabies. This research analytical observational method with a cross sectional approach then analyzed through the Chi-Square test using the SPSS application. Based on the results of research with statistical tests obtained regarding personal hygiene and the incidence of scabies, p value of 0.029 < 0.05 was obtained, and there is no significant relationship between economic level and the incidence of scabies as shown by the p-value 0.176 <0.05. Students at the Nur El Haq modern Islamic boarding school with poor personal hygiene are more susceptible to scabies. Further research is needed regarding other variables related to scabies incidents among students at boarding school. The results of this research can be used as a reference for educating students about the importance of personal hygiene for health.
Diversity Weed of plantation Oranges (Citrus nobilis Lour.) with Different Ages in Lima Puluh Kota Regency. Solfiyeni, Solfiyeni; Mardianti, Yomita
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i1.6505

Abstract

Abstract: Weeds in citrus plantation areas create competition with staple plants for water, nutrients, light and can even compete with staple crops by releasing allelochemical compounds (allelopathy). This research aims to determine the composition and structure of weeds in Jesigo orange (Citrus nobilis Lour.) plantations of different ages in Gunuang Omeh sub-district, Lima Puluh Kota district, West Sumatra province. This research was carried out using the quadratic method by placing plots using purposive sampling in orange plantations aged 10 years and aged 1.5 years. At both locations plots measuring 10x10 meters were created which were divided into 25 subplots measuring 2x2 meters. In each subplot, observations were made of weed species and the number of individuals of each species. Data analysis was carried out using the important value index formula, Shannon-Wienner Diversity Index and Sorensen Similarity Index. The results of the research in orange plantations aged 10 years found 6 families, 15 genera, 15 species and 889 individual weeds, while in orange plantations aged 1.5 years, 7 families, 14 genera, 14 species and 588 individual weeds were found. The dominant weed in orange plantations aged 10 years is Aeschynomene indica with an important value index (IVI) of 23.84% and in orange plantations aged 1.5 years is Melastoma malabathricum with an IVI of 19.15%. The value of the species diversity index (H') in orange plantations aged 10 years is 2.49 and in orange plantations aged 1.5 years is 2.34, which indicates that the species diversity at both locations is classified as moderate. The similarity index value for both plantations is 13.8%. The composition and structure of weeds in orange plantations aged 10 years and 1.5 years old are different and the similarity of weed species in both locations is low.
Prevalence of helminthiasis and identification of worm species in buffaloes on smallholder farms in Jerowaru sub-district, East Lombok Sriasih, Made; Depamede, Sulaiman N; Wariata, Wayan; Ali, Muhamad; Rosyidi, Anwar; Hasma, Hasma; Hadi, Imron
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i1.6506

Abstract

Jerowaru sub-district is one of 21 sub-districts in East Lombok district. Many people raise buffaloes to fulfill their need for food of animal origin. However, the business is still hampered by diseases caused by worm infestation, which is economically detrimental. This study aimed to obtain data on the prevalence of helminthiasis in buffaloes and identify the types of worms that infest the animals. Fecal samples were collected from buffaloes kept in smallholder farms in several villages in the Jerowaru sub-district. Examination and identification of samples were conducted at the Microbiology and Biotechnology laboratory of the Faculty of Animal Science, University of Mataram, and the Banyumulek Animal Health laboratory. The results show that the prevalence of helminthiasis in buffaloes kept in smallholder farms in the Jerowaru subdistrict was 14.60%. The types of parasites infecting buffaloes consisted of Eimeria (13.48%) and Toxocara (1.12%). Although parasite infection intensity is categorized as mild, it is necessary to pay attention to the cleanliness of cattle pens, especially during the rainy season, so they are not wet and humid.

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