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Jurnal Pembelajaran dan Biologi Nukleus
Published by Universitas Labuhanbatu
ISSN : 24429481     EISSN : 26857332     DOI : https://doi.org/10.36987/jpbn
Core Subject : Science, Education, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media
Jurnal Pendidikan Biologi merupakan jurnal elektronik yang merupakan wadah penerbitan artikel penelitian original yang terkait dengan penelitian pendidikan biologi. Jurnal ini dikelola oleh Program Studi Pendidikan Biologidibawah naungan LPPM Universitas Labuhanbatu. Jurnal ini diterbitkan dua kali dalam setahun pada bulan Maret dan September. Jurnal ini menyajikan hasil penelitian dibidang Pendidikan Biologi dan sains Biologi.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 437 Documents
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Diversity of Sub Order Rhopalocera in Langsa City Forest Park, Aceh Anggrela, Vira; Mawardi, Abdul L.; Jayanthi, Sri
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 4: Jurnal Pembelajaran Dan Biologi Nukleus December 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i4.7202

Abstract

Background: Langsa Urban Forest Park is a protected forest area that serves as a natural habitat for various flora and fauna, both wild and cultivated. One of the organisms that can be found there is an insect from the suborder Rhopalocera, namely butterflies. Butterflies play a very important role in supporting ecosystem balance and biodiversity. This study aims to determine the diversity and dominance indices of Rhopalocera suborder (butterflies) species in Langsa City Forest Park, Aceh. The study used observation methods during the rainy season. Methodology: Sampling was conducted using purposive sampling methods across three locations with varying environmental conditions and vegetation characteristics. Sampling was conducted using sweep net techniques with insect nets at the research sites. The quantitative descriptive analysis calculated was the diversity index and species dominance of butterflies. Findings: The Rhopalocera species found in Langsa City Forest Park consisted of 41 species belonging to 5 families The dominant family found is Nymphalidae, while the dominant species found is Leptosia nina from the Pieridae family. The overall Rhopalocera diversity index (H` = 3.10) falls into the high category, and all three research sites have moderate diversity indices. The highest diversity was found at Site I (H` = 2.86), which has a variety of plant vegetation and is near a lake. Meanwhile, the lowest diversity was found at location II, which is dominated by tree vegetation. Vegetation diversity creates habitats that support butterfly species development, while homogeneous vegetation structures can limit the availability of food sources and habitats, resulting in low species diversity. The species dominance index is included in low category. The diversity of Rhopalocera (butterflies) and their habitats is crucial to preserve in efforts to conserve the Langsa City Forest Park ecosystem. Contribution: this study are expected to provide useful information for the management and conservation of the area, as well as to raise public awareness about the importance of preserving biodiversity
Optimizing Goat Manure Rates and Liquid Organic Fertilizer Concentrations for Solanum melongena L. Physiology and Fruit Output in Surabaya, East Java Pranoto, Difa Eka; Triani, Nova; Sulistyono, Agus
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 4: Jurnal Pembelajaran Dan Biologi Nukleus December 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i4.7954

Abstract

Background: Purple eggplant (Solanum melongena L.) is a high-value nutritional crop with significant market demand. However, production in Indonesia fluctuated between 2021 and 2023; after reaching a peak of 551,552 tons, yields dropped to 510,749 tons in 2023. This decline is largely attributed to the excessive use of synthetic fertilizers. This study aims to evaluate the interactions and effects of integrating goat manure with various liquid organic fertilizers (LOF) on purple eggplant growth. Furthermore, this research seeks to establish sustainable cultivation practices that reduce chemical dependency in horticulture. Methodology: This research followed a Factorial Randomized Block Design (RBD) with two factors and three replications. The first factor was the goat manure dosage at four levels: 0 g/plant (control), 500 g/plant, 750 g/plant, and 1,000 g/plant. The second factor consisted of four types of liquid applications: NPK 16:16:16 (control), eco-enzyme LOF, banana peel LOF, and cabbage waste LOF. Observation data were analyzed using Analysis of Variance (ANOVA), followed by Tukey’s Honestly Significant Difference (HSD) test at a 5% significance level where significant effects were detected. Findings: The results showed that the combined treatment of goat manure dose of 1,000 g/plant and banana peel LOF gave the best results in the parameters of plant height (46.67 cm), number of leaves (16.33 leaves), total fruit number per plant (11.72 fruits), and total harvest weight per plant (1635.94 grams) compared to other organic combination treatments. Contribution: The combination of goat manure and banana peel liquid organic fertilizer (LOF) emerged as the most effective treatment compared to other organic combinations. This organic treatment resulted in a 28% yield increase over the control. Althought this specific increase was not statistically significant, the study strongly recommends organic fertilizers as a sustainable and eco-friendly alternative to reduce inorganic fertilizer dependency in horticultural farming systems
Interactive Effects of AB Mix Nutrient and Gandasil D Fertilizer on Productivity of Pakcoy (Brassica rapa L.) in Wick Hydroponics Mellyaningtyas, Chintia Dinda; Hidayat, Ramdan; Koentjoro, Yonny
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 3: Jurnal Pembelajaran Dan Biologi Nukleus September 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i3.7814

Abstract

Background: National Pakcoy (Brassica rapa L.) production declined by approximately 9.69 % from 2022 to 2023 due to climate variability, suboptimal cultivation practices, and agricultural land-use conversion, highlighting the need for alternative production strategies. Wick-based hydroponic cultivation with optimized nutrient management using AB Mix and Gandasil D foliar fertilizer is therefore investigated for its potential to enhance nutrient uptake efficiency, vegetative growth, and yield of pakcoy in a sustainable manner. Methodology: the study conducted in Gubeng District, Surabaya, utilized a factorial Completely Randomized Design (CRD). The first factor was AB Mix concentration (500 ppm, 1000 ppm, 1500 ppm), and the second was Gandasil D foliar fertilizer concentration (Control, 1 g/L, 2 g/L, 3 g/L). Observation parameters include, plant length (cm), leaf area (cm2), total fresh weight, shoot fresh weight, and shoot dry weight. Further analysis was performed using the Honestly Significant Difference (HSD) test at a 5% significance level. Findings: showed a significant interaction between the AB Mix concentration and Gandasil D foliar fertilizer on the plant shoot dry weight, with the highest yield (6.27 g) achieved by the combination of 1500 ppm AB Mix and 2 g/L Gandasil D. The single treatment of 1500 ppm AB Mix concentration yielded the best average for all observed parameters, including: plant length (16.73 cm), leaf area (688.04 cm2), total fresh weight (64.15 g), shoot fresh weight (51.56 g), and shoot dry weight (6.27 g). The 2 g/L Gandasil D concentration treatment provided the highest results for total fresh weight (56.09 g) and shoot fresh weight (45.28 g). The combination of 1,500 ppm AB Mix and 2 g/L Gandasil D demonstrated the most optimal results for the growth and yield of pakcoy plants compared to other treatment combinations. Contribution: These findings provide information regarding the selection of the optimal AB Mix and Gandasil D concentrations to maximize the growth and yield of pakcoy in the wick hydroponic system, which can be utilized in educational or training programs for communities practicing urban farming
An Environment-Oriented PBL Digital Worksheet to Support Critical Thinking Development in Ecosystem Learning Salsabila, Syifa; Astuti, Widia; Ernawati, Ernawati; Maretik, Maretik; Tendrita, Miswandi
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 4: Jurnal Pembelajaran Dan Biologi Nukleus December 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i4.8335

Abstract

Background: The development of students’ critical thinking skills requires learning media that actively engage students in problem analysis, reasoning, and decision-making processes. However, the use of electronic student worksheets (E-LKPD) in schools is still limited and often does not fully integrate problem-based learning principles or contextual environmental issues. Many available LKPDs remain procedural and teacher-centered, reducing opportunities for students to practice higher-order thinking skills independently. This condition indicates the need for innovative E-LKPD that are systematically designed to support critical thinking development through problem-based learning approaches. This study aims to develop and evaluate the effectiveness of an environment-based Problem-Based Learning (PBL) electronic student worksheet (E-LKPD) on ecosystem content to enhance senior high school students’ critical thinking skills. Methodology: This research employed a Research and Development (R&D) method using the ADDIE model, which consists of analysis, design, development, implementation, and evaluation stages. The product was validated by two experts using a Likert-scale-based expert validation questionnaire covering content, media, and language aspects. Practicality testing involved one biology teacher and nineteen students, while effectiveness was analyzed using a pretest–posttest design with the Shapiro–Wilk test and paired t-test. Findings: The validation results obtained an average percentage of 91%, categorized as very valid. Practicality testing involving 1 teacher and 19 students SMAN 1 Toari showed positive responses with a percentage of 84%, classified as very practical. The effectiveness of the E-LKPD was evidenced by an increase in the average score from 82.68 to 89.46 among students of class X.4 at MAN 1 Kolaka, along with a significance value of 0.000, indicating a significant difference after the implementation of the E-LKPD. Contribution: These findings indicate that the environmental-based PBL E-LKPD contributes to the design of biology learning by providing a structured and interactive digital worksheet that facilitates problem-oriented learning and critical thinking development. The integration of contextual environmental issues within the E-LKPD supports meaningful ecosystem learning and reinforces the role of digital learning media in promoting active, analytical, and student-centered biology instruction
Assessment of Mixed Cultivation Substrate (Burnt Husk-Sawdust-Bagasse) and NPK Fertilizer on Growth Performance of Oyster Mushroom (Pleurotus ostreatus) Muthmainnah, Muthmainnah; Idris, M.
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 3: Jurnal Pembelajaran Dan Biologi Nukleus September 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i3.8222

Abstract

Background: Oyster mushroom cultivation generally uses sawdust as the primary rowin medium. Limited availability and fluctuating prices require innovation for mushroom planting media. The use of bagasse and burnt husk waste as an alternative medium in an effort to maximize abundant but underutilized agroindustrial resources has the potential to become a medium for growing oyster mushrooms, as the cellulose and lignocellulose content can support optimal mycelium growth. Therefore, this study aims to analyze the effect of using burnt husk as planting media, bagasse, and NPK fertilizer on the growth of oyster mushrooms (Pleurotus ostreatus). Methodology: This study employed a factorial Group Random Design method, consisting of two factors: the combination factor of substrate media (M) and NPK fertilizer dosage (N). The observed parameters included mycelial growth, cap dimeter and fresh weight of the mushroom. Data were analyzed by using Analisys of Variance (ANOVA) with SPSS v.25. Findings: The results of the data analysis showed the optimization of fungal growth in a combination of 1000 gr of sawdust and 80 gr burnt husk without the addition of NPK fertilizer with f calculated > f table (7.08>3.63). The ANOVA test confirmed that NPK fertilizer did not have a significant effect on the quality of mushrooms, possibly even negatively, because NPK creates nutrient-rich conditions that favor competing microorganisms that develop faster than oyster mushrooms. The combination of burnt husk and sawdust without NPK (M1N0) resulted in the highest mycelial growth, reaching 21.3 cm, while the lowest growth was observed in the sawdust and bagasse media with the addition of NPK (15 g) (M2N1), which was 16 cm. Meanwhile, the highest cap diameter was obtained in the Sugarcane bagasse and sawdust media without NPK (M2N0), with an average value of 8 cm. In contrast, the lowest diameter was observed in the bagasse media with an NPK of 20 g (M2N2), which was 5 cm. Contribution: This research confirms that burnt husk and sugarcane bagasse substrates, without NPK fertilizer, can serve as an effective and environmentally friendly alternative medium for oyster mushroom cultivation.
E-Modul Based on Educational Tourism at Kilo 5 Luwuk Beach: Development of Learning Material to Faster Environmental Awareness in Junior High School Student Haruna, Moh. Fahri; Abdan, Hasna; Yusuf, Frida Maryati; Katili, Abubakar Sidik
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 4: Jurnal Pembelajaran Dan Biologi Nukleus December 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i4.8357

Abstract

Background: This research was initiated in response to the noticeable lack of environmental awareness among students in coastal regions, despite the area's abundant natural resources, and the absence of innovative, contextually relevant science learning tools. The research aims to develop a digital edutourism-based e-module at Kilo 5 Beach in Luwuk, designed to enhance students' conceptual understanding and foster environmental appreciation. Methodology: The research employs a Research and Development (R&D) approach, specifically the 4D development model (define, design, develop, and disseminate), though only three stages were executed: a preliminary study, design and validation by subject matter and media experts, and effectiveness testing with educators and students. Effectiveness was evaluated using pre- and post-tests, with data analyzed through the N-Gain formula and t-tests. Findings: This e-module is validated as educational resource. Expert validation confirmed the e-module's validity, with average scores exceeding 9%, indicating no revisions were needed. Practicality assessments revealed positive feedback from both teachers and students, with scores in the excellent category (above 90%), demonstrating the e-module's high practicality. The e-module's effectiveness was further evidenced by an increase in students' understanding, reflected in an N-Gain value of 0.6316 (medium category) and a significant t-test result (0.00<0.05). Contributions: This research provides empirical support for the use of educational tourism–based e-modules as contextual digital learning tools to improve environmental awareness and conceptual understanding among coastal junior high school students. It advances the 4D development framework by embedding local ecotourism contexts into science learning materials and evaluating their validity, practicality, and learning impact. The findings offer a transferable instructional approach that links formal science education with local environmental resources to support place-based and sustainability-focused learning.
Phytochemical Constituents of Cinnamomum burmannii (Ness & T.Nees) Blume: A Systematic Review Rahwal, Sultan; Agung, Yoki Permana; Ramadani, Suci Indah; Ismed, Friardi; Arifa, Nurwahidatul
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 4: Jurnal Pembelajaran Dan Biologi Nukleus December 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i4.8264

Abstract

Background: Cinnamomum burmannii is an Indonesian native cinnamon species with significant potential for developing pharmaceutical and functional food products. Methodology: This study aims to identify and analyze the phytochemical constituents of C. Burmannii through a systematic literature review using PRISMA databases such as PubMed, Scopus, and Science Direct,were searched from 2015-2025. Findings: The findings reveal that C. Burmannii contains diverse bioactive compounds, including aromatic aldehydes, phenolics, flavonoids, terpenoids, coumarins, aromatic alcohols, organic acids, and aromatic esters. Dominant compounds such as cinnamaldehyde, quercetin, catechin, and eugenol exhibit strong antimicrobial, antioxidant, antidiabetic, anti-inflammatory, and analgesic activities. Quantitative analysis shows total phenolic content ranging from 31–89 mg GAE/100 g, total flavonoid 15–80 mg QE/100 g, and total tannin 89–217 mg CE/g, with ethanol extraction yielding optimal results. Several novel pure compounds, including Burmanoside, Burmafuranic acid, Burmannic acid, and o-hydroxycinnamic acid, have been isolated and demonstrate antiproliferative and photoprotective activities. Contribution: This systematic review highlights the diversity of phytochemical constituents in C. Burmannii and emphasizes the influence of plants parts and extraction methods on phytochemicals profiles.

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