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All Journal Biocaster : Jurnal Kajian Biologi
Sonja Verra Tinneke Lumowa
Program Studi Pendidikan Biologi, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mulawarman, Jalan Kuaro, Samarinda, Kalimantan Timur 75119, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology

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Pengaruh Model Pembelajaran Terintegrasi Shared terhadap Hasil dan Motivasi Belajar pada Pokok Bahasan Sistem Sirkulasi Siswa Kelas XI di SMAN 4 Samarinda Tahun Pembelajaran 2025/2026 Nur Zahra Al Azizah; Herliani Herliani; Sonja Verra Tinneke Lumowa; Elsje Theodora Maasawet
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 2 (2026): April
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i2.1302

Abstract

This study aims to analyze the effect of the shared integrated learning model on student learning outcomes and motivation in the circulatory system topic in grade XI of SMAN 4 Samarinda. This study used a quasi-experimental method with a non-equivalent control group design and purposive sampling technique. The research sample consisted of 25 students in the experimental class and 25 students in the control class. The research instruments were a learning outcome test and a learning motivation questionnaire. Data analysis was conducted using the N-gain test and independent sample t-test at a significance level of α = 0.05. The results showed that the N-gain of learning outcomes in the experimental class was 0.61 (medium category) higher than the control class at 0.31 (low category). The N-gain of learning motivation in the experimental class was 0.20 (low category) also higher than the control class at 0.04 (very low category). The results of the hypothesis test showed a significance value <0.05, so the shared integrated learning model has a significant effect on student learning outcomes and motivation in the circulatory system topic.
Pengaruh Daun Sirsak dan Bawang Putih sebagai Pestisida Nabati terhadap Hama Bayam Belang BA 132 Angelina Triandini Payung Datu Melo; Sonja Verra Tinneke Lumowa; Herliani Herliani; Nelda Anasthasia Serena
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 3 (2025): July
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i3.430

Abstract

Insect pest attacks are one of the main obstacles in cultivating striped spinach (Amaranthus tricolor L.), because they reduce the quality and quantity of the harvest. Long-term use of synthetic pesticides has a negative impact on the environment and health. This study aims to test the effectiveness of the combination of soursop leaf extract (Annona muricata L.) and garlic (Allium sativum) as a botanical pesticide on the intensity of pest attacks. The study was conducted using a Randomized Block Design (RBD) with five concentration treatments (0%, 25%, 45%, 65%, and 85%) and five replications. Data were analyzed using ANOVA and BNT test at the 1% level. The results showed that the botanical extract treatment had a significant effect on reducing the intensity of pest attacks, with a concentration of 85% giving the most effective results (Fcount 236.05 > Ftable 4.77). The treatment of plant leaves showed lower damage than the control. This effectiveness is thought to be due to the content of active compounds, such as flavonoids, saponins, tannins, acetogenins, and alkaloids which are toxic to pests. In conclusion, soursop leaf and garlic extracts have the potential to be environmentally friendly botanical pesticides and can be used as an alternative to control striped spinach plant pests.
Co-Authors Angelina Triandini Payung Datu Melo Elsje Theodora Maasawet Herliani Herliani Nelda Anasthasia Serena Nur Zahra Al Azizah