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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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Study of The Suitability of Tourism in the Lubuk Kertang Mangrove Forest Area, Langkat district, North Sumatra Hasan, Uswatul; Mardiana, Siti; Hasibuan, Syahbudin
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i1.6404

Abstract

Mangrove forests serve as a natural barrier against storm surges, tsunamis and coastal erosion. Their complex root systems dissipate wave energy, protecting coastal areas from the effects of severe weather.This article serves to evaluate the tourism potential of the Lubuk Kertang mangrove area, highlight its ecological and community significance, identify challenges, and propose sustainable management strategies to enhance ecotourism opportunities. Mangrove observation using the transectional square methodology was used to assess mangrove density. It involves establishing transect squares consisting of 20 units, each measuring 10 x 10 meters, starting from the coastal area and extending inland. The study found that the mangrove area consisted mainly of Avicennia marina species, with a density of 1860 individuals per hectare (18.6 individuals per 100 m²). The tourism suitability index results for the Lubuk Kertang mangrove forest area were very high at 87.5%, categorizing it as “very suitable” for ecotourism development. This indicates a strong potential to attract tourists and promote sustainable tourism practices in the region
The Influence of Liquid Organic Fertilizer from Pineapple Peel Waste and Chicken Manure Compost on the Growth and Production of Purple Eggplant (Solanum melongena) Irmawan, Anjas; Sembiring, Desi Sri Pasca Sari; Amrul, Hanifah Mutia Zaida Ningrum
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i1.7067

Abstract

Eggplant (Solanum melongena L.) is a widely recognized food source among all segments of society. It has become one of the most favored dishes across various groups. The demand for purple eggplant continues to rise; however, this increase in demand is not accompanied by a corresponding rise in production levels. The Factorial Randomized Block Design with two factors and three replications is used in this study. The observation parameters in this study include stem diameter (mm), plant height (cm), fruit length (cm), number of fruits per planting (fruits), number of fruits per plot (fruits), weight of fruits per planting (g), and weight of fruits per plot. The study's findings demonstrated that using fertilizer made from chicken manure significantly impacted the following parameters: fruit length (cm) in the K3 treatment were 20.09 cm and the S3 treatment of pineaple peel waste were 18.83 cm, fruit weight per plant (g) in the K3 treatment were 782.11 g, and S3 treatment were 735.86 g and had no discernible impact on the following parameters: fruit weight per plot (g) in the K3 treatment of chicken manure fertiliser were 781.27 g and the S3 treatment of pineapple peel waste were 7.14 g; number of fruits per plant (fruit) in the K3 treatment of chicken manure fertiliser were 7.46 fruit and the S3 treatment of pineapple skin waste were 7.18 fruit. There is no effect of pineapple peel waste LOF on all parameters
Isolation and Identification of Endophytic Bacteria from Euphorbia hirta L. (Patikan Kebo) Rindiyani, Rindiyani; Anugrah, Ratu Intan; Nabila, Bella; Salsabilla, Sisilia; Susanti, Elia; Rofiani, Desi; Puspytha, Yolanda; Wibowo, Risky Hadi; Sipriyadi, Sipriyadi; Darwis, Welly
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i1.6688

Abstract

Patikan Kebo (Euphorbia hirta L.) is a plant that lives scattered in the yard, has potential as an antibacterial, one way to extract plants is by isolating endophytic bacteria. Endophytes are bacteria found in plant tissue. The purpose of this study was to isolate and identify the morphology of endophytic bacteria from  plant Patikan Kebo (Euphorbia hirta L.). The method used is the Total Plate Count (TPC) method by taking samples, isolating bacteria, pure culture, morphological identification, and Gram staining. Endophytic bacteria were obtained by isolating parts of the plant Patikan Kebo (E. hirta L.), namely the roots of patikan kebo (PRE), Patikan kebo stem endophyte (PSE) and Patikan kebo leaves endophyte (PLE). The results of the study found 22 isolates, endophytic bacterial isolates have diverse morphological characteristics including appearance, elevation, edges and color. There are 20 isolates of endophytic bacteria that belong to the Gram positive group and 2 isolates of endophytic bacteria that belong to the Gram negative group. It can be concluded that endophytic bacterial isolates from Patikan Kebo (Euphorbia hirta L.) plants have different morphologies
Exploring Factors Affecting Students’ Difficulties in Learning Science at MTs Raudlatul ‘Uluum Aek Nabara Junior High School: Focus on Animal and Plant Reproduction Materials Ananda, Tasya Dhea; Dimenta, Rivo Hasper; Nazliah, Rahmi
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i1.6992

Abstract

The learning process is inseparable from internal and external obstacles experienced by individual students. When students fail to meet the established learning standards, we categorize them as learning difficulties. This study aims to analyze the factors of learning difficulties experienced by MTs Raudlatul ‘Uluum students in the science subject of animal and plant reproduction. Therefore, this research information will be an indicator in efforts to create conducive learning conditions and environments in this school. This study used a quantitative descriptive method with a total sampling technique. The data were collected using interviews, questionnaires, and documentation of student grades. In the study, it was found that students' learning problems are affected by their interest (88.56%), intelligence (81.22%), and health (78.29%); by social influences at school (78.02%); and by the method learning (77.45% with practicums and 73.93% with instruments). Learning difficulties faced by students who are in the puberty stage need attention so that the improvement of students' abilities, skills, and talents at school can be explored optimally 
Inventory of Rattan in the Depati Karo Jayo Tuo Customary Forest, Rantau Kermas Village Apriani, Nur; Ihsan, Mahya; Husnudin, Uni Baroroh; Hariyadi, Bambang; Murni, Pinta
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i1.6506

Abstract

The Depati Karo Jayo Tuo Customary Forest, located within the Merangin Geopark, is a conservation forest that contains various plant species, including rattan. However, specific data on rattan species in this area are unavailable. This study aims to inventory and categorize the rattan species in the forest. Data collection was carried out by exploring the forest's trekking path. Rattan samples were collected using the quadrat plot method. The identification results revealed the presence of seven rattan species in the Depati Karo Jayo Tuo Customary Forest, namely Calamus micracanthus Griff., Calamus javensis Blume, Calamus oblongus Reinw. ex Blume, Calamus manan Miq., Calamus castaneus Griff., Calamus sp., and Korthalsia laciniosa (Griff.) Mart. Among these, Calamus oblongus Reinw. ex Blume was the most abundant species, with 1,050 individuals, while Calamus castaneus Griff. was the least abundant, with only 14 individuals recorded. According to the IUCN conservation status, all identified rattan species are classified as "Not Evaluated." Similarly, rattan is not listed as a protected species based on Indonesian Government Regulation No. 7 of 1999. Additionally, data from CITES indicate that rattan is not involved in international trade
Conventional Character Empowerment: A Critical Study On Students' Environmental Care Character Profile at Noemuti State High School Sele, Yunawati; Santiari, Made
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i1.6454

Abstract

In the learning process, properly empowering students' environmental care character is a crucial endeavor. This study was conducted to analyze the effectiveness of empowering students' environmental care character, as measured by the environmental care character profile. This quantitative descriptive study used a student environmental care character questionnaire instrument. The results showed that the average value of students' environmental care character was 64.34, which was in the sufficient category. Out of the 52 participants in this study, only 14.29 demonstrated an average level of environmental care character in the good category. Other respondents, specifically 77.55 % and 8.16 %, had average values in the sufficient and less categories. This shows that the conventional approach has not been effective in empowering students' environmental care character. Other efforts are needed, namely 1) school commitment to integrate character values into the school's vision and mission including the implementation of various school activities, 2) teacher commitment to select, develop and implement learning models that provide opportunities for students to be actively involved in learning, for example problem-based learning models, project-based learning models, contextual learning models and outdoor learning, 3) Development and use of ICT-based media and learning resources that are integrated with environmental literacy and 4) increasing the involvement of relevant stakeholders such as parents, government and the community in efforts to empower students' environmentally conscious character
The Effectiveness of Jigsaw Cooperative Learning Model on Students' Appreciation of Biodiversity at Senior High School SMA Negeri 1 Rantau Utara Siregar, Nur Safrani; Harahap, Hasmi Syahputra; Khairul, Khairul
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i1.6500

Abstract

The low appreciation and understanding of students towards biodiversity, especially medicinal plants, pose challenges in biology education in Indonesia. Traditional teacher-centered methods emphasize memorization and lack a local cultural context. This study examines the effectiveness of the Jigsaw cooperative learning model based on ethnoscience in improving students’ appreciation and understanding of medicinal plant biodiversity. A quasi-experimental design with a non-equivalent control group was used, involving grade X students of SMA Negeri 1 Rantau Utara. The experimental group used the Jigsaw model, while the control group followed conventional methods. Instruments included a Likert scale for appreciation and a multiple-choice test for understanding. Data analysis with SPSS 22.0 showed an average appreciation score of 67.03 and an understanding score of 87.66. The effectiveness test yielded a significance value of 0.000 (P < 0.005), indicating a significant improvement in the experimental group. The study concludes that the Jigsaw model enhances student engagement and appreciation of local knowledge, making it a relevant and contextual learning approach for strengthening students’ understanding of Indonesia’s natural and cultural heritage
Potential of The Biological Agent Bacillus sp. in Inhibiting Moler Disease and its Effects on The Growth and Production of Shallot (Allium ascalonicum L.) Yuwono, F. Tsara Nafisah; Wuryandari, Yenny; Mujoko, Tri
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i1.6428

Abstract

Shallot (Allium ascalonicum L.) is one of the important commodities in Indonesia. The main obstacle that is often faced is moler disease caused by Fusarium sp. Bacillus sp. bacteria have the potential to control Fusarium sp. The purpose of study was to determine the ability of Bacillus sp. in controlling moler disease and its effect on the growth and production of onion plants. The study used a factorial completely randomized design with three replications and nine treatments, so there were 27 experimental units. The observation variables included incubation period, disease intensity, plant height, number of leaves, and tuber wet weight. The research data were analyzed using the ANOVA analysis of variance procedure to determine whether there was an effect of each treatment. If it is known that there is a significantly different effect from the treatment, it will be continued with the DMRT test at the 5 % level. The results showed that the combination of Bacillus sp. isolate bcz 16 and dosage 35 ml/polybag was the longest delaying the incubation period of 15 day and could suppress moler disease by 50 %. The treatment of Bacillus sp. isolate bcz 16 and dosage 35 ml also gave the highest results in plant length, number of leaves, and wet weight of shallot bulbs
Effectiveness Soaking Duration of Rice Seed with Trichoderma sp. for Controlling Seed-Borne Pathogenic Fungi Mahfud, Nur Aini; Purnawati, Arika; Suryaminarsih, Penta
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i1.6847

Abstract

 Low rice productivity due to the use of low-grade seeds. The quality of the seeds can suffer a decrease caused by the attack of pathogenic fungi carried by the seeds both at the time of planting and storage, which will have an impact on the disruption of plant growth. Biopriming using Trichoderma sp. be an effort to control because it is antagonistic to pathogens. The success of biopriming is also influenced by the duration of seed priming. This study aims to examine the duration of soaking rice seeds with Trichoderma sp. the most effective for lowering seed-borne pathogenic infections. The study was conducted by providing seed soaking treatment using Trichoderma sp. suspension for 6 hours, 12 hours, and 24 hours with PDA medium incubation test method and Growing on Test. The parameters tested are the percentage of infection rate and the percentage of germination. Identification results showed that pathogenic fungi carried by seeds included Rhizopus sp., Fusarium sp., Aspergillus sp., and Mucor sp. The results showed the duration of soaking rice seeds with Trichoderma sp. more effective in decreasing the infection rate is at a 24-hour duration. However, the duration of soaking rice seeds with Trichoderma sp. there was no noticeable difference for the percentage parameter of seed germination.
Analysis of Water Quality at The Peak of Spawning Season Tenualosa ilisha at The Downstream of Bilah River Sari, Leni Indah; Machrizal, Rusdi; Harahap, Ilham Hakiki
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i1.6380

Abstract

Water quality analysis plays an important role in understanding the environmental factors that affect aquatic life, especially during critical periods such as fish spawning. The purpose of this study was to investigate several aspects related to water quality and its impact on hilsa fish species during their life cycle period. The study was conducted in Sungai Bilah over a four-month period in 2023, focusing on three specialized stations to assess water quality during the peak season of hilsa fish spawning. This study uses the descriptive method, with strategic sampling locations determined through interviews with fishermen. This method is crucial for understanding the impact of water quality on fish spawning activities. The results of the water quality analysis showed that each station had an average value of Temperature 26.625 °C, Turbidity 86.033, Total Suspended Solid (TSS) 88.75, Dissolved Oxygen (DO) 6.75, Nitrate 2.50, and Phosphate 0.002. Overall, these results indicate that the water quality in the observation area is in a condition that supports the successful spawning of hilsa fish, with stable temperature and adequate dissolved oxygen levels, while other parameters such as turbidity and TSS remain within acceptable limits

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