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All Journal Bioedukasi: Jurnal Pendidikan Biologi Jurnal Penelitian Pendidikan IPA (JPPIPA) Bioed : Jurnal Pendidikan Biologi Biocaster : Jurnal Kajian Biologi
Lumowa, Sonja Verra Tinneke
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Environmental Science Immunology & microbiology Materials Science & Nanotechnology Physics

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Journal : Biocaster : Jurnal Kajian Biologi

 1 
Pengaruh Daun Sirsak dan Bawang Putih sebagai Pestisida Nabati terhadap Hama Bayam Belang BA 132 Melo, Angelina Triandini Payung Datu; Lumowa, Sonja Verra Tinneke; Herliani, Herliani; Serena, Nelda Anasthasia
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.
Identifikasi Serangga Hama pada Tanaman Cabai Rawit (Capsicum frutescens L.) pada Fase Generatif di Lahan Tani Air Terjun Pinang Seribu Kelurahan Sempaja Utara Samarinda Widiyanti, Tanti; Lumowa, Sonja Verra Tinneke; Masitah, Masitah; Purwati, Sri
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 4 (2025): October (In Progress)
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i4.634

Abstract

Cayenne pepper (Capsicum frutescens L.) is a horticultural commodity with high economic value that is widely consumed by the Indonesian people, but is susceptible to various types of pests, especially in the generative phase. This study aims to identify the type and dominance of insect pests that attack cayenne pepper plants in the generative phase in the farmland of Thousand Pinang Waterfall, North Sempaja Village, Samarinda. The research methods used include direct observation and insect collection using several types of traps (insect nets, light traps, and pitfall traps). Identification is carried out down to the family level with the help of a keybook of determination and morphological character of insects. The results of the study showed the existence of several insect pest families such as Tephritidae (fruit flies), Thripidae (thrips), Aphididae (aphids), and Bemisiidae (whiteflies) that were dominant during the generative phase of the plant. So it can be concluded that cayenne pepper plants in the generative phase in the farmland of the Thousand Pinang Waterfall, Samarinda, are vulnerable to being attacked by various types of insect pests. This is important to support a more precise and effective pest control strategy in the critical phase of the growth of cayenne pepper plants.
Penerapan Model Pembelajaran Project Based Learning (PjBL) melalui Pendekatan Diferensiasi terhadap Peningkatan Kreativitas dan Hasil Belajar Peserta Didik dalam Materi Sistem Koordinasi di Kelas XI SMA Negeri 13 Samarinda Lestari, Endah Puji; Maasawet, Elsje Theodora; Lumowa, Sonja Verra Tinneke; Makkadafi, Suparno Putera; Rambitan, Vandalita Maria Magdalena
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 4 (2025): October (In Progress)
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i4.726

Abstract

This study aims to determine the effect of the implementation of the Project Based Learning (PjBL) learning model through a differentiation approach in improving creativity and learning outcomes of students in class XI of SMA Negeri 13 Samarinda. This research method uses a quantitative approach with a non-equivalent control group design. The population in this study was all class XI of SMA Negeri 13 Samarinda. Sampling used a purposive sampling technique. The sample in this study was class XI Moving Biology (XI-5 and XI-8) as an experimental class using the Project Based Learning (PjBL) learning model through a differentiation approach and XI-3 as a control class using a conventional learning model. Data were collected through tests in the form of essay questions and observation sheets. The data from the test questions and observation sheets were analyzed using an independent sample t-test and an N-gain test with the help of a data processing application. The statistical test results obtained from the independent sample t-test on creativity showed a significance value of 0.000 < 0.05, as well as the independent sample t-test on learning outcomes of 0.011 < 0.05, so H0 was rejected and Ha was accepted. It can be concluded that there is an influence of the application of the Project Based Learning (PjBL) learning model through a differentiation approach on creativity and learning outcomes of students in the experimental class. Furthermore, the N-gain test showed an increase in student learning outcomes after implementing the Project-Based Learning (PjBL) model through a differentiation approach, with an N-gain score of 0.91, in the high category. These research results indicate that implementing PjBL with a differentiation approach can be an effective alternative learning strategy for developing creativity and improving student learning outcomes in high school.
Co-Authors AKHMAD Aprilia, Fiona Esther Cyndirela Elsje Theodora Maasawet Endah Puji Lestari, Endah Puji Herliani Herliani Lambang Subagiyo Makkadafi, Suparno Putera Makrina Tindangen Masitah - Masitah Masitah Melo, Angelina Triandini Payung Datu Nugraha, Samuel Eka Rambitan, Vandalita M.M. Saputri, Alfiyyah Rifda Serena, Nelda Anasthasia Sri Purwati, Sri Teguh Pribadi Turista, Dora Dayu Rahma Vandalita Maria Magdalena Rambitan Widiyanti, Tanti Yusak Hudiyono, Yusak Zenia Lutfi Kurniawati, Zenia Lutfi