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Kota mataram,
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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 2,520 Documents
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Morphological Characteristics POD of 5 Cocoa Clones in Suka Agung Village, Lumbok District, Tanggamus Regency Fauziah, Lu'lu' Kholidah; Permatasari, Nindy; Sari, Resti Puspa Kartika
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): Special Issue
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.v25i4b.10716

Abstract

Tanggamus Regency has a large potential for plantation resources. More than 85% of its land is classified as suitable for cocoa cultivation. Optimizing this potential requires the use of superior cocoa clones with pod morphological characteristics that support high productivity. This study aims to determine the quantitative pod morphological characteristics of 5 cocoa clones and identify the most suitable clones for cultivation in Suka Agung Village, Bulok District, Tanggamus Regency. The research method is a survey with a purposive sampling method. Quantitative pod morphological data were analyzed using ANOVA and DMRT at a significance level of 5%. The results showed that MCC 01 and MCC 02 showed better quantitative characteristics than other clones. This was indicated by higher average pod diameter, number of seeds per pod, seed length, seed diameter, and number of seeds per 100 g. However, the MCC 01 clone is considered to have moderate resistance to Vascular Streak Dieback (VSD) and Cocoa Pod Borer (CPB). In conclusion, MCC 02 is suitable for cocoa cultivation in Suka Agung Village, Lumbok District, Tanggamus.
The Effect of White Turmeric Extract (Curcuma mangga Val) in Commercial Feed on the Growth of Tilapia (Oreochromis niloticus) Ulaan, Magdalin; Mose, Numisye I; Indriani, Yeni; Saselah, Jetti T; Manganang, Yessi A. P.
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): Special Issue
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.v25i4b.10725

Abstract

Indonesia's high biodiversity has great potential to be developed in various fields, including fisheries. To support sustainable and environmentally friendly aquaculture activities, the utilization of local natural resources is one of the keys to increasing the competitiveness of the national fisheries sector amid global challenges related to food security and the environment. One alternative source that can be used as a natural feed supplement in fish farming is from the Curcuma genus, such as white turmeric (Curcuma mangga Val). Therefore, the purpose of this study was to determine the effectiveness of white turmeric extract (Curcuma mangga Val) on the growth of tilapia. The research design used was a completely randomized design consisting of 3 treatments and 3 replicates, namely: Treatment A (feed without turmeric extract), Treatment B (feed added with 5 ml of white turmeric extract), and Treatment C (feed added with 10 ml of white turmeric extract). Feed was administered three times daily at a dose of 5% of body weight. The results showed that the addition of white turmeric extract (Curcuma mangga Val.) significantly increased the growth of Nile tilapia (Oreochromis niloticus). The most effective treatment dose was Treatment C (10 ml/kg of feed), which resulted in an absolute average increase of 8.99 g in weight and 2.67 cm in length.
The Effect of Tongka Langit Banana Juice on Morphological Abnormalities Spermatozoa in Mice (Mus musculus) Infected by Plasmodium berghei Hitalesiakwane, Yesty E.; Kaihena, Martha; Samson, Efraim
Jurnal Biologi Tropis Vol. 25 No. 4a (2025): Special Issue
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.v25i4a.10727

Abstract

Malaria infection by Plasmodium is known to affect human reproduction. One of the reproductive organs affected by malaria infection is the testes. If there is a disorder in the testes, it will affect the spermatogenesis process, so that it can cause morphological abnormalities of the resulting spermatozoa. This study aims to determine the effect of administering Tongka Langit banana juice (Musa troglodytarum) on morphological abnormalities of spermatozoa in mice (Mus musculus) infected with Plasmodium berghei. The results of this study indicate that administering Tongka Langit banana juice can reduce spermatozoa abnormalities. Compared with the dose groups of 0.55g/mice/day and 0.65g/mice/day, administering Tongka Langit banana juice at a dose of 0.75g/mice/day is the most effective dose on reducing the average spermatozoa abnormalities in mice. The carotenoid content in Tongka Langit bananas is thought to ward off Plasmodium berghei infection, the cause of spermatozoa abnormalities in mice.
Analysis of matK and trnL-trnF Intergenic Spacer on Pandan (Benstonea sp.) From Kualu Village, Riau Province, Indonesia Nugraha, Fadel; Sofhya, Putri Tri; Putri, Fatma Jumaita; Herman, Herman; Roslim, Dewi Indriyani
Jurnal Biologi Tropis Vol. 25 No. 4a (2025): Special Issue
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.v25i4a.10731

Abstract

Molecular characterization using DNA barcodes is essential for clarifying taxonomic relationships and confirming species identity within the genus Benstonea. Pandan (Benstonea sp.) has potential as a source of bioactive compounds, a subject of genetic and taxonomic studies, and a component of biodiversity that supports conservation and the development of tissue culture for secondary metabolite production. This study aims to analyze the DNA barcode regions matK and trnL-trnF intergenic spacer (IGS) on Benstonea sp. collected from Kualu Village, Riau Province, Indonesia. The fresh leaves of this plant were used for DNA extraction using the Geneaid Mini Plant kit, PCR following Thermo Scientific protocols, agarose gel electrophoresis, sequencing, and data analysis using BioEdit, BLASTn, and MEGA 11.0. In this study had been obtained DNA sequences of matK and trnL-trnF IGS with the size of 846 bp and 964, respectively. Based on BLASTn analysis of the sequences, it showed that the pandan species originating from Kualu Village (Kampar Regency) and Langgam Village (Pelalawan Regency) have similarities with accessions from other genera of the Pandanaceae family (average query cover value reaches 100%). Phylogenetic analysis of the trnL-trnF IGS showed that the pandan plants studied were in the same group as Benstonea sp. 'Kajuik Lake' DIR01 and were clearly separated from the Pandanus and Martellidendron groups. The trnL-trnF IGS can be used to differentiate and group species of the genera Benstonea and Pandanus into distinct clades, whereas the matK was only effective for classification at the genus level. The sequences were submitted to GenBank and were available for use in the molecular identification of this plant.
Development of Game-Based Educational Media to Increase Knowledge About Anemia in Adolescent Girls in Coastal Areas Sugiono, Muhammad Rafly Adrian; Lestarini, Ima Arum; Rizki, Mohammad
Jurnal Biologi Tropis Vol. 25 No. 4a (2025): Special Issue
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.v25i4a.10750

Abstract

Anemia is a serious health problem worldwide, especially in children, pregnant women, and women of reproductive age. Studies have shown that knowledge about anemia is associated with both the incidence of anemia and the compliance of adolescent girls in consuming iron tablets. This study aims to develop an educational media prototype about anemia in the form of a board game to increase the knowledge of adolescent girls about anemia. A research and development (R&D) approach was used, involving three main stages: (1) board game design, (2) prototype development, and (3) playtesting. A purposive sampling technique was used to select respondents from four categories: content experts, students, game experts, and adolescent girls. From this research, a board game prototype titled Anemopoly has been developed. In the student category, 2 respondents (15.38%) rated it as good and 11 (84.62%) as very good, achieving 94.15% of the maximum score. In the game expert category, 3 respondents (25%) gave good ratings and 9 (75%) very good, totaling 87.4%. Among adolescent girls, 3 respondents (25%) rated it good and 9 (75%) very good, totaling 90.53%. Overall, Anemopoly received very good evaluations from students, game experts, and adolescent girls.
Application of pH and TDS Sensors to Optimize the Growth of Green Lettuce (Lactuca sativa L.) in a Hydroponic System Aini, Quratul; Fevria, Resti; Kardiman, Reki; Putri, Irma Leilani Eka
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): Special Issue
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.v25i4b.10764

Abstract

Green lettuce (Lactuca sativa L.) is one of the leafy vegetables that is widely cultivated because it has a relatively short harvest time and high nutritional value, especially as a source of fiber, vitamin A, and vitamin K. This study aims to improve the growth of green lettuce using a DFT (Deep Flow Tecnique) hydroponic system equipped with IoT-based pH and TDS sensors. This study used a completely randomized design (CRD) with two treatments, namely P1 (50% AB Mix + 50% POC) using pH and TDS sensors and P2 (50% AB Mix + 50% POC) without pH and TDS sensors, each with two replications and nine samples per replication. The results showed that the use of pH and TDS sensors significantly increased plant height (32.44 cm), number of leaves (23.66 strands), leaf area (422.8 cm2), wet weight (236.4 g) and dry weight (23.41 g) compared to the manual method. Data analysis using an unpaired t-test at a 5% significance level showed significant differences in most growth parameters. IoT technology has proven effective in increasing the efficiency and productivity of hydroponic systems by providing real-time nutrients according to plant needs. This research supports the development of IoT technology for sustainable agriculture, while also having a positive impact on production efficiency and resource savings.
Application of pH and TDS Sensors to Optimize the Growth of Pakcoy (Brassica rapa L.) Plants in Hydroponic Systems Mardaniyah, Annisa; Fevria, Resti; Vauzia, Vauzia; Kardiman, Reki
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): Special Issue
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.v25i4b.10765

Abstract

Pakcoy (Brassica rapa L.) is a widely cultivated leafy vegetable with high economic value. Limited agricultural land and the need for more efficient cultivation systems encourage the use of hydroponic technology, particularly through the use of pH and TDS sensors to optimize nutrient management. This study aims to compare the growth of pakcoy plants using the Deep Flow Technique (DFT) hydroponic system with pH and TDS sensors and without sensors. The study used a Completely Randomized Design (CRD) with two treatments: 50% AB mix + 50% POC with sensors, and 50% AB mix + 50% POC without sensors, with nine replications. The parameters observed included plant height, number of leaves, leaf area, fresh weight, and dry weight. Data were analyzed using an unpaired t-test at a significance level of 5%. The results showed that the use of pH and TDS sensors significantly affected all growth parameters. The treatment with sensors resulted in higher average values, namely plant height of 25.1 cm, number of leaves of 17.3, leaf area of 514.6 cm², fresh weight of 236.28 g, and dry weight of 30.7 g compared to the treatment without sensors. Automatic nutrient monitoring creates stable solution conditions, thereby increasing nutrient absorption efficiency and plant biomass accumulation. This study concluded that the use of pH and TDS sensors is effective in optimizing and increasing the productivity of bok choy plants in hydroponic systems. It is recommended that IoT-based monitoring technology be applied more widely to improve cultivation efficiency, reduce costs, and support sustainable agriculture.
Antibacterial Effectiveness Test of Ethanol Extract of Torch Ginger (Etlingera elatior) Flower Against the Growth of Escherichia coli and Staphylococcus aureus Simatupang, Steffanie Ruth; Panjaitan, Ivonne Mona Selly
Jurnal Biologi Tropis Vol. 25 No. 4a (2025): Special Issue
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.v25i4a.10766

Abstract

Antibiotic-resistant bacteria like Staphylococcus aureus and Escherichia coli are becoming more common, which is a major worldwide health concern. The purpose of this study was to assess the antibacterial activity of Etlingera elatior (kecombrang flower) ethanolic extract against Gram-positive S. aureus and Gram-negative E. coli. The Microbiology Laboratory at Universitas Advent Indonesia's Faculty of Mathematics and Natural Sciences was the site of the experimental study. Using the disc diffusion method on Mueller Hinton Agar medium, the extract was tested at three concentrations (30%, 40%, and 50%) after being made using the maceration process with 95% ethanol. As demonstrated by inhibitory zones at all doses, the ethanolic extract of E. elatior demonstrated antibacterial activity against both bacterial species. The inhibition zone diameters ranged from 8.95–10.70 mm for E. coli and 9.00–13.68 mm for S. aureus. Statistical analysis using One-Sample t-test confirmed that all treatments significantly inhibited bacterial growth (p < 0.05). Different extract concentrations had a significant effect on S. aureus (p = 0.003) but no significant effect on E. coli (p = 0.083), according to a one-way ANOVA. Because Gram-positive bacteria have simpler cell walls that facilitate the better penetration of bioactive substances like flavonoids, tannins, and saponins, our results show that Etlingera elatior extract has more antibacterial action against S. aureus than E. coli. For the creation of environmentally friendly phytopharmaceuticals, Etlingera elatior can be regarded as a promising natural antibacterial agent.
Description of Level of Knowledge of Teenagers About Impact of Electric Cigarettes on Health in High School Students in Ambon City Sahetapy, Beatries Giovany; Sitompul, Monalisa
Jurnal Biologi Tropis Vol. 25 No. 4a (2025): Special Issue
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.v25i4a.10774

Abstract

E-cigarettes, often known as vapes, have gained popularity as a substitute for traditional cigarettes in tandem with technological advancements. Since both contain nicotine, the harmful health effects are not appreciably different from those of traditional cigarettes. As of right now, there is not any solid scientific proof that e-cigarettes are a viable substitute for traditional cigarettes. This study aims to determine the level of knowledge of adolescents about the dangers of e-cigarettes to health. This study used a quantitative descriptive design. Data analysis used univariate analysis. The results found that the majority of respondents were female, namely 184 people (51.1%), while respondents of both genders. Knowledge of the dangers of e-cigarettes to health among adolescents was highest at 44 people (12.2%), with a moderate level of knowledge at 270 people (75%), and a low level of knowledge at 46 people (12.8%). Adolescent health education about the risks of e-cigarettes has to be improved, as seen by the comparatively low percentage of respondents (12.2%) who had high knowledge. The study concludes that education and health counseling are still necessary to increase adolescents' awareness of the risks associated with e-cigarettes, particularly since social media and the environment can give the false impression that e-cigarettes are safer than traditional cigarettes. These results highlight how crucial it is for families, schools, and medical professionals to provide correct and continuous education to raise teenagers' knowledge and awareness of the risks associated with e-cigarettes and so prevent their use at an early age.
The Effect of Nanocurcumin Size Inhibitory Effect on Klebsiella pneumoniae and Staphylococcus aureus Bacteria Suak, Raffael Griffin Frarie; Ricky, Donn Richard; Tobing, Joshua Hamonangan Lumban
Jurnal Biologi Tropis Vol. 25 No. 4a (2025): Special Issue
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.v25i4a.10776

Abstract

Bacterial infections such by Staphylococcus aureus and Klebsiella pneumoniae remain a major health challenge due to the increasing problem of antibiotic resistance. Curcumin has shown antibacterial potential; however, its poor solubility and low bioavailability limit its effectiveness. This study aimed to analyze the effect of varying PVP K30 concentrations on the particle size of nanocurcumin and its inhibitory activity against both bacteria. A true experimental design with a posttest-only control group was employed using three concentrations of PVP K30: 1.5 g/mL, 3.0 g/mL, and 4.5 g/mL. Particle size was measured using a Particle Size Analyzer (PSA), while antibacterial activity was evaluated through the disk diffusion method on Mueller-Hinton Agar (MHA). The results showed that increasing PVP K30 concentration reduced particle size, with mean diameters of 132.2 nm, 295.2 nm, and 20.6 nm, respectively. The inhibition zones by S. aureus ranged from 1.82–3.6 mm (weak), while those by K. pneumoniae ranged from 1,08–8,98 mm (weak to moderate). ANOVA analysis indicated no significant effect on S. aureus (p= 0.099 > α= 0.05), but a significant effect on K. pneumoniae (p= 0.000 < α= 0.05). These findings suggest that nanoparticle size plays an essential role in enhancing the antibacterial activity of nanocurcumin, particularly against Gram-negative bacteria.

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