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All Journal Biocaster : Jurnal Kajian Biologi
Dora Dayu Rahma Turista
Program Studi Pendidikan Biologi, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mulawarman, Jalan Muara Pahu, Samarinda, Kalimantan Timur 75119, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology

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Pengaruh Pemberian Kombinasi Ekstrak Tanaman Kemangi (Ocimum basilicum) dan Daun Salam (Syzygium polyanthum) sebagai Pestisida Alami untuk Mengendalikan Serangga Hama pada Tanaman Kangkung Darat (Ipomoea reptans Poir) Noer Ashikin; Sonja Verra Tinneke Lumowa; Makrina Tindangen; Dora Dayu Rahma Turista
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 1 (2026): January
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i1.787

Abstract

The decline in land spinach (Ipomoea reptans Poir.) production is partly due to pest attacks, such as armyworms, aphids, and whiteflies. This study aims to determine the effect of a combination of basil (Ocimum basilicum) and bay leaf (Syzygium polyanthum) leaf extract as a botanical pesticide on pest attack intensity and to determine the most effective concentration. This study used a Randomized Block Design (RBD) with five treatments (0%, 30%, 40%, 50%, and 60%) and five replications. The analysis results showed that the combination of the two leaf extracts significantly reduced pest attack intensity. The 60% concentration resulted in the lowest attack intensity, at 18% (mild category), making it the most effective treatment. Thus, the combination of basil and bay leaf extracts has the potential to be an environmentally friendly botanical pesticide for pest control in land spinach.
Pengaruh Model Pembelajaran Game Based Learning Berbantuan Media Lumio terhadap Motivasi dan Hasil Belajar Siswa Kelas VII SMP Negeri 9 Samarinda Angellya Kristin Sapan; Dora Dayu Rahma Turista; Elsje Theodora Maasawet; Sri Purwati; Suparno Putera Makkadafi; Vandalita Maria Magdalena Rambitan
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 4 (2025): October
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i4.676

Abstract

The Game Based Learning learning model is a learning approach that uses game elements in the learning process that involves students so that students interact more and play an active role during the learning process in the classroom. The use of the Game Based Learning Model is complemented by the use of Lumio as a learning medium. Lumio is a digital-based learning platform that combines slide presentations with activities such as quizzes and games, creating an active, fun and effective learning process in the modern technological age. The success of the learning process in the classroom is largely determined by appropriate teaching strategies and approaches. The purpose of this study is to determine the influence of the Game Based Learning model assisted by Lumio media on student motivation and learning outcomes in Science Class VII subjects of SMP Negeri 9 Samarinda. The method used in this study is a Quasi experiment which was designed using the Nonequivalent Control Group Design. The data analysis technique used was an independent sample test on the Mann Whitney non-paramteric test with the use of the Lumio-assisted Game Based Learning learning model on Motivation and The results showed that there was a significant difference between the experimental and control classes, with a sig value. 2-tailed 0.000 < 0.05, so from the Mann Whitney test it is known that there is an influence on the application of the Game Based Learning learning model assisted by Lumio media on student motivation and learning outcomes in science subjects grade VII SMP Negeri 9 Samarinda.
Pengaruh Model Pembelajaran Problem Based Learning (PBL) Berbantuan LKPD Liveworksheets terhadap Hasil Belajar Siswa Kelas VII pada Mata Pelajaran IPA di SMP Negeri 37 Samarinda Aulia Ayu Oktavia; Akhmad Akhmad; Dora Dayu Rahma Turista; Suparno Putera Makkadafi
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 4 (2025): October
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i4.705

Abstract

Seventh-grade students of SMP Negeri 37 Samarinda face problems in science learning, namely not achieving learning mastery. The learning process is still dominated by conventional teacher-centered methods that cause students to tend to be passive and learning media are less varied, so that learning activities are not effective. To overcome these problems, this study applies the Problem Based Learning (PBL) learning model assisted by LKPD Liveworksheets which encourages students to think critically and actively to be able to solve problems thoroughly and completely. This study aims to determine the effect of the problem based learning model assisted by LKPD Liveworksheets on the learning outcomes of seventh-grade students in science subjects at SMP Negeri 37 Samarinda. The type of research used is quantitative research with a quasi-experimental method using a non-equivalent control group design. The research sample was selected by purposive sampling consisting of classes VIIC and VIID with a total of 44 students. Data analysis was carried out using the independent sample t test and the N-Gain test. Based on the data analysis, the t-test obtained a significance value of 0.004 (p < 0.05), indicating a significant difference between the learning outcomes of students in the experimental and control classes. Furthermore, the N-Gain analysis showed that the experimental class obtained a score of 0.63, which is in the moderate category, while the control class obtained a score of 0.57, also in the moderate category. These findings indicate that the implementation of the Problem-Based Learning (PBL) model assisted by Student Worksheets (LKPD) based on liveworksheets has a positive impact on improving student learning outcomes in Natural Science (IPA) for seventh graders at SMP Negeri 37 Samarinda.
Pengaruh Eco-Enzyme sebagai Nutrisi terhadap Pertumbuhan Tanaman Selada Hijau (Lactuca sativa) pada Metode Hidroponik Sistem Wick di Kota Samarinda Roza Adnan Sofian; Zenia Lutfi Kurniawati; Dora Dayu Rahma Turista; Sri Purwati; Masitah Masitah
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 4 (2025): October
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i4.713

Abstract

Green lettuce (Lactuca sativa) is a horticultural crop that is becoming increasingly popular due to its high nutritional content. This plant plays an important role in improving the nutritional intake of the community. This study aimed to determine the effect of using eco-enzyme on the growth of green lettuce plants and to identify the best concentration. The research was conducted from June to August 2025 on a limited area using the wick hydroponic system located on Jalan Abdul Wahab Syahrani, Gang Wangi, Gunung Kelua, Air Hitam, Samarinda City, East Kalimantan Province. This study used a Randomized Block Design (RBD) consisting of five treatments, each repeated five times, namely: P0 (control/1 L), P+ (control plus/AB mix 10 ml/L), P1 (EE 10 ml/L), P2 (EE 15 ml/L), and P3 (EE 20 ml/L). Data on plant height and number of leaves were analyzed using Two-way Multivariate Analysis of Variance (Two-way MANOVA) followed by the Bonferroni test at a 5% significance level. Meanwhile, the data on fresh weight were analyzed using One-way Analysis of Variance (One-way ANOVA). The results showed that eco-enzyme treatment had a significant effect on plant height, number of leaves, and fresh weight of green lettuce, with the best concentration obtained from treatment P1 (EE 10 ml/L).
Co-Authors Akhmad Akhmad Angellya Kristin Sapan Aulia Ayu Oktavia Elsje Theodora Maasawet Makrina Tindangen Masitah Masitah Noer Ashikin Roza Adnan Sofian Sonja Verra Tinneke Lumowa Sri Purwati Suparno Putera Makkadafi Vandalita Maria Magdalena Rambitan Zenia Lutfi Kurniawati