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Bioscientist : Jurnal Ilmiah Biologi
Published by Universitas Pendidikan Mandalika
ISSN : 23385006     EISSN : 26544571     DOI : https://doi.org/10.33394
Core Subject : Science, Education, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Social Sciences
Bioscientist : Jurnal Ilmiah Biologi (BJIB), receiving and publishing article in the form of research (scientific article) in the field of biology education and utilization of biological research in learning. Moreover, this journal bridges the gap between research and practice, providing information, ideas and opinion, in addition to critical examinations of biology research and teaching. Through the coverage of policy and curriculum developments, the latest results of research into the teaching, learning and assessment of biology are brought to the fore. Special emphasize are as follow: 1. Research on Learning Biology (Biology Learning Materials at All Education Levels). 2. Pure Research of Biology Developed or Studied to the Sources, Materials, or Instructional Media Biology (Biology Learning Materials at All Education Levels and Application in Society). 3. Curriculum of Biology Education at all Education Levels. 4. Class Action Research (CAR) and Lesson Study in Biology. 5. Other Qualitative Research of Biology Education. 6. The School Management and Biology/Science Laboratory Management. 7. Biology Learning Evaluation. 8. Teacher Professional Issues/Trends in Biology Education. 9. Another Study for the Scope of Biology Education. 10. Research on Environmental Education.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 1,428 Documents
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Effect of Liquid Organic Fertilizer Derived from Catfish Offal Waste and Banana Pseudostems on the Growth of Curly Chili Pepper (Capsicum annuum L. var. longum) Anggraini, Septika; Wakhidah, Anisatu Z.
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 1 (2026): March
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v14i1.19839

Abstract

This study aimed to analyze the effect of liquid organic fertilizer (LOF) derived from catfish offal waste and banana stems on the vegetative growth of curly chili (Capsicum annuum L. var. longum). The study employed an experimental method using a randomized block design (RBD) with four treatments: P0 (control), P1 (20 mL LOF/L), P2 (40 mL LOF/L), and P3 (60 mL LOF/L), each with six replications. The LOF was applied at a rate of 200 mL per plant weekly. The observed parameters included plant height, leaf number, and leaf width over a four-week period, and the data were analyzed using one-way ANOVA followed by a post hoc test. The results showed that the LOF contained 0.08% N, 0.09% P, and 15.9 mg/L K, and had a significant effect on all measured parameters (Sig. < 0.05). Treatment P1 produced the best results, increasing plant height by 59.9%, leaf number by 43.2%, and leaf width by 21.2% compared with the control. The decline in growth at higher doses indicates the potential for phytotoxicity or nutrient imbalance. Therefore, this organic waste-based LOF was effective at low to moderate doses in enhancing the early vegetative growth of curly chili.
The Effect of the Teams Games Tournament (TGT) Learning Model on Students’ Learning Activities and Learning Outcomes in the Topic of Viruses among Tenth-Grade Senior High School Students Pasaribu, Jessica Sonia; Napitupulu, Martina Asiati
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 1 (2026): March
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v14i1.19899

Abstract

This study aimed to determine the effect of the Teams Games Tournament (TGT) learning model on students’ learning activities and learning outcomes in the topic of viruses among Grade X senior high school students. The study employed a quasi-experimental method using a Non-Equivalent Control Group Design. The sample was selected through purposive sampling based on the equivalence of pretest scores, resulting in Class X-3 as the experimental group and Class X-4 as the control group, with 34 students in each class. The research instruments consisted of multiple-choice questions to measure learning outcomes and observation sheets to assess students’ learning activities. The data were analyzed using parametric statistics, including tests of normality, homogeneity, and a one-tailed independent-samples t-test (right-tailed). The results showed that the mean score of students’ learning activities in the experimental class (79.67) was higher than that in the control class (44.31), with a significance value of 0.000 < 0.05. Similarly, the mean learning outcome score in the experimental class (84.71) was higher than that in the control class (79.56), with a significance value of 0.0045 < 0.05. Therefore, the TGT learning model was effective in improving both students’ learning activities and learning outcomes in the topic of viruses for Grade X senior high school students and may serve as an alternative interactive biology teaching strategy to help students understand the abstract concept of viruses.
Analysis of the Abundance and Morphological Characteristics of Airborne Microorganisms in an Environmental Engineering Laboratory Prawitasari, Diah Ayu; Isnikarita, Rina; Lathifa, Annisa Nur; Rahmawati, Suphia
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 1 (2026): March
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v14i1.17342

Abstract

This study aimed to analyze the abundance and morphology of airborne microorganisms in the Environmental Engineering Laboratory and to relate their distribution to differences in room conditions and sampling time. Sampling was conducted in two rooms, Room A and Room B, during the morning and afternoon using a microbiological air sampler with Nutrient Agar (NA), Potato Dextrose Agar (PDA), and Plate Count Agar (PCA) media. Statistical analysis showed that room conditions strongly influenced the distribution of airborne microorganisms and were also affected by indoor airflow patterns. The findings revealed higher concentrations in Room B than in Room A (morning averages: 60.75 vs. 23.75 CFU/m³; afternoon averages: 44.5 vs. 24.25 CFU/m³), with a statistically significant difference (Mann–Whitney, p-value < 0.05). These results indicate that optimizing airflow direction, scheduling cleaning activities, and conducting routine bioaerosol monitoring are necessary as indicators of control performance. Morphological analysis identified Gram-positive bacteria such as Staphylococcus and Bacillus, as well as fungi such as Aspergillus and Trichoderma, all of which may affect health and indoor air quality. This study underscores the importance of laboratory indoor air quality management in reducing health risks associated with airborne microorganisms.
Biocultural Potential of Multifunctional Flora in Urban Green Open Spaces: A Case Study of Tabebuya Park, South Jakarta Rahayu, Kun Mardiwati; Prasetyo, Andikha Bima; Ridwanulloh, Ribath
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 1 (2026): March
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v14i1.19420

Abstract

This study aimed to identify the composition of flora species in Tabebuya Park, analyze the biocultural potential of its flora, and explain its implications for strengthening the ecological, social, and cultural functions of urban green open spaces. The main issue underlying this study is the lack of integrated information on species composition and the biocultural use potential of flora in urban parks as a basis for urban green space management. The study employed an exploratory approach using the cruise method through direct inventory of all vegetation at the study site. Species identification was conducted based on morphological observations, visual documentation, and the use of an artificial intelligence (AI)-based plant identification application as a preliminary tool, which was subsequently verified using botanical literature and taxonomic references. Data were analyzed descriptively and quantitatively by calculating relative frequency and grouping plants according to ethnobotanical use categories derived from the literature. The results showed that Tabebuya Park contains 53 plant species from 34 families, with high multifunctional potential, including 42 medicinal species, 31 ornamental plants, 9 aromatic plants, 2 dye-producing plants, 21 food and beverage plants, 5 culinary spice plants, 20 cosmetic plants, and 10 plants used for rituals or customary practices. These findings confirm that Tabebuya Park functions not only as an aesthetic element of the urban landscape, but also as a biocultural green space that plays an important role in providing ecosystem services, supporting educational activities, and improving the quality of life of urban communities.
Patterns of Medicinal Plant Use in Traditional Healing Practices in Semerap, Kerinci Regency Lorensa, Lucya Audini; Setiawan, M. Eval; Sastria, Emayulia; Lardiman, Hendra
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 1 (2026): March
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v14i1.19506

Abstract

This study aimed to identify the medicinal plant species utilized by the community, describe the plant parts used along with their processing techniques, and examine the implications for preserving the associated local wisdom. The study employed a descriptive qualitative approach using observation and in-depth interviews with five key informants selected purposively, including community leaders and traditional practitioners. The sample size was determined based on the principle of data saturation, which was reached when interviews no longer generated new information or themes relevant to the research focus. Data were analyzed using thematic procedures consisting of data reduction, data display, and conclusion drawing. The findings showed that the people of Semerap Village use a variety of medicinal plant species, with a clear preference for leaves over other parts such as rhizomes, fruits, and bark. The most commonly applied preparation method was decoction (boiling) for oral consumption, followed by topical application through pounding. In addition, traditional healing practices integrated herbal remedies with spiritual modalities, such as prayer or ruqyah, reflecting the local belief system. These plants were used to treat a wide range of health conditions, from minor ailments to chronic diseases. This study provides crucial documentation of local ethnobotanical knowledge, enriching regional data while supporting community-based efforts to conserve traditional knowledge.
Community Structure of Fiddler Crabs (Uca) in the Mangrove Ecosystem of Lalombi Village, South Banawa District, Donggala Regency Paliwan, Berlinda Austin; Bustamin; Rauf, Abd.; Zainal, Syech; Sabran, Moh; Agni, Raya
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 1 (2026): March
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v14i1.19867

Abstract

This study aimed to analyze the community structure of fiddler crabs (Uca) in the mangrove ecosystem of Lalombi Village, South Banawa District, Donggala Regency, and to utilize the research findings as instructional media in the form of a flipbook. This ecological study employed a quantitative descriptive approach based on community structure analysis, with samples collected using purposive sampling. The parameters analyzed included species composition, density, the Shannon–Wiener diversity index, the Simpson dominance index, and the evenness index, along with environmental variables such as temperature, salinity, pH, and substrate type. The results showed that the fiddler crab community in the mangrove ecosystem of Lalombi Village consisted of five species, namely Uca annulipes, Uca lactea, Uca forcipata, Uca tetragonon, and Uca dussumieri. Abundance varied across sampling stations, and the overall diversity level was classified as low to moderate. The occurrence frequency of these five fiddler crab species was very low. The recorded densities were 6 ind/m² for Uca annulipes, 3 ind/m² for Uca lactea, 5 ind/m² for Uca forcipata, 7 ind/m² for Uca tetragonon, and 3 ind/m² for Uca dussumieri, with a low dominance index. The environmental physicochemical conditions recorded for fiddler crab habitat were a temperature of 30°C, water pH of 8.25, salinity of 31, and a muddy substrate type. Overall, the fiddler crab community structure in the mangrove ecosystem of Lalombi Village was relatively stable, characterized by low to moderate diversity, low dominance, and a clumped distribution pattern influenced by substrate conditions and mangrove density.
Ethnobotanical Study of Medicinal Plants Used by Communities in Bou Village, Sojol District, Donggala Regency Utami, Amelia Sry; Dhafir, Fatmah; Nurdin, Musdalifah; Alibasyah, Lestari M. P.; Budiarsa, I Made; Febriani, Vita Indri
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 1 (2026): March
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v14i1.19891

Abstract

This study aimed to identify and document the medicinal plant species utilized by the community in Bou Village, Sojol District, Donggala Regency, including their methods of preparation, the plant parts used, and the types of diseases treated. This research employed a qualitative descriptive design using the snowball sampling method. Data were collected through field observations, unstructured interviews with six informants who possessed traditional knowledge of medicinal plants, and direct documentation. The data were analyzed descriptively using a qualitative approach by describing the medicinal plant species identified, including their local names, scientific names, families, parts used, therapeutic uses, and methods of preparation. The results showed that 24 medicinal plant species belonging to 18 families were used to treat various ailments, most commonly fever, digestive disorders, urinary tract infections, coughs, and others. Leaves were the plant part most frequently used, while boiling was the most common method of preparation. This study highlights the importance of preserving local communities’ traditional knowledge regarding the use of medicinal plants as a form of local wisdom that has been passed down from generation to generation and should be sustainably maintained.
Hydrilla verticillata Density as a Bioindicator of Pollution in the Waters of Lake Talaga, Dampelas District Khasanah, Azizatul; Astija; Buntu, Amalia; Febriawan, Aan; Bialangi, Mursito S.; Febriani, Vita Indri
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 1 (2026): March
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v14i1.19908

Abstract

This study aimed to determine the density of Hydrilla verticillata in Lake Talaga and to evaluate its potential as a bioindicator of changes in water quality caused by domestic pollution. The study was conducted at three stations, where physicochemical parameters were measured, including temperature, pH, light intensity, turbidity, dissolved oxygen, and the heavy metals Pb, Fe, and Cu. The results showed that water temperature ranged from 26 to 28°C and dissolved oxygen from 8.04 to 8.49 mg/L, indicating conditions that still support aquatic life. Heavy metal concentrations were below the established water quality standards. However, the pH was categorized as highly alkaline, and the highest turbidity was recorded at the station located near residential areas, suggesting environmental pressure associated with domestic activities. The density of Hydrilla verticillata varied among stations, reaching 607,333.3 ind/ha at Station II (high category), 180,000 ind/ha at Station I (moderate category), and 6,066 ind/ha at Station III (low category). The high density observed in the residential area indicates nutrient enrichment that may stimulate excessive growth of aquatic vegetation. This condition suggests symptoms of eutrophication and indicates that Lake Talaga is experiencing localized light to moderate pollution. Therefore, the density of Hydrilla verticillata has strong potential to be used as a bioindicator for assessing changes in water quality.
The Effect of Nutrition Education on Students’ Breakfast Habits and Academic Achievement at SMA Negeri 1 Sausu Indrianti, Ni Luh; Lilies; Laenggeng, Abd. Hakim; Dhafir, Fatmah; Zainal, Syech; Nurdin, Musdalifah
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 1 (2026): March
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v14i1.19914

Abstract

This study aimed to examine the effect of nutrition education on students’ breakfast habits and learning outcomes at SMA Negeri 1 Sausu, while also highlighting its role in promoting healthier breakfast behaviors among students. The study employed a quantitative approach using a one-group pretest-posttest design. The participants were 23 tenth-grade students selected through total sampling. Data were collected using questionnaires to assess students’ breakfast habits before and after the intervention, as well as documentation of students’ learning outcomes. Data were analyzed using descriptive quantitative analysis through mean scores, score improvement, and N-gain values. The results showed that the mean breakfast habit score increased from 40.09 in the pretest to 48.43 in the posttest, with an N-gain of 0.14, which was categorized as low. In addition, the mean learning outcome score increased from 77.30 before the intervention to 80.17 after the intervention, with an N-gain of 0.13, also categorized as low. These findings indicate that nutrition education contributed positively to improvements in students’ breakfast habits and learning outcomes, although the level of effectiveness remained low. Therefore, nutrition education has the potential to serve as a promotive and preventive strategy for fostering healthy breakfast behaviors and supporting academic improvement, provided that it is implemented continuously and supported by both the family and the school environment.
Optimization of Aloe vera as a Natural Plant Growth Regulator to Enhance the Growth of Dendrobium Orchid ‘Arif’ Umamah, Imarotul; Dewi, Endah Rita Sulistya; Rahayu, Praptining
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 1 (2026): March
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v14i1.19984

Abstract

This study aimed to analyze the effects of different concentrations of Aloe vera as a natural plant growth regulator (PGR) on the growth of Dendrobium ‘Arif’ orchids. The observed parameters included root length, stem height, and shoot height as indicators of vegetative growth. The experiment employed a completely randomized design (CRD) with five treatments: a control (0%) and Aloe vera extract at concentrations of 1%, 3%, 5%, and 7%, each with three replicates. Data were analyzed using one-way ANOVA, followed by Tukey’s HSD test at a 5% significance level. The results showed that Aloe vera had a significant effect on stem height (F = 2.712; p = 0.043) and root length (F = 5.896; p = 0.001), but no significant effect on shoot height (F = 0.359; p = 0.836). The 5% concentration produced the highest mean stem height (8.00 cm), exceeding that of the control (6.94 cm), 1% (6.89 cm), 3% (6.39 cm), and 7% (6.83 cm). For root length, the 5% concentration also yielded the highest value (8.98 cm), compared with 1% (7.76 cm), the control (6.40 cm), 7% (5.95 cm), and 3% (4.56 cm), and differed significantly according to Tukey’s HSD test. The non-significant response in shoot height suggests differences in physiological sensitivity among plant organs, with roots and stems being more responsive to auxins and gibberellins present in Aloe vera. Overall, Aloe vera extract shows potential as a natural PGR to support the vegetative growth of Dendrobium orchids, particularly in root and stem development.

Page 142 of 143 | Total Record : 1428

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