Sonja Verra Tinneke Lumowa
Program Studi Pendidikan Biologi, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mulawarman, Jalan Muara Pahu, Samarinda, Kalimantan Timur 75123, Indonesia

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Isolasi dan Identifikasi Jamur pada Buah Cabai Rawit Putih (Capsicum frutescens L.) Varietas Hibrida F1 Bhaskara yang Bergejala Antraknosa dari Lahan Tani Desa Tondoh Kabupaten Kutai Barat Riska Rahmawati Utami; Sonja Verra Tinneke Lumowa; Masitah Masitah; Suparno Putera Makkadafi
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 3 (2026): July (In Progress)
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i3.1343

Abstract

Anthracnose is a disease that often attacks cayenne pepper (Capsicum frutescens L.). This study aims to identify fungal species and determine the morphological characteristics of fungi found in white cayenne pepper fruit of the F1 Bhaskara Hybrid variety with anthracnose symptoms from the farmland of Tondoh Village, Mook Manaar Bulatn District, West Kutai Regency. The type of research used is qualitative descriptive, namely symptomatic fruit samples were isolated using the direct planting method (direct plating) on ​​Potato Dextrose Agar (PDA) media, and fungal identification was carried out by observing the macromorphological and micromorphological characteristics of the fungus. The results showed that there were three types of fungi that were successfully isolated, namely Colletotrichum sp., Pythium sp., and Rhizoctonia sp. Colletotrichum sp. has white colonies with a cotton-like texture, septate hyphae, and cylindrical conidia. Pythium sp. is characterized by non-septate hyphae and spherical sporangia. Rhizoctonia sp. have light brown colonies with septate hyphae and perpendicular branches forming approximately 90° angles. The presence of these three fungi indicates that in addition to Colletotrichum sp. as the primary cause of anthracnose, there are accompanying pathogens that exacerbate damage and accelerate fruit decay. The results of this study serve as the basis for developing anthracnose control strategies.
Pengaruh Model Problem Based Learning (PBL) Berbantuan Media Wordwall terhadap Keterampilan Berpikir Kritis Siswa pada Mata Pelajaran IPA di Kelas VII SMP Negeri 6 Samarinda Triana Adawiyah; Akhmad Akhmad; Sonja Verra Tinneke Lumowa; Vandalita Maria Magdalena Rambitan; Masitah Masitah; Lilis Suryani
Panthera : Jurnal Ilmiah Pendidikan Sains dan Terapan Vol. 6 No. 3 (2026): July (In Progress)
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/panthera.v6i3.1329

Abstract

This research is motivated by the lack of application of varied learning models, causing low critical thinking skills of students in science learning, so the Problem Based Learning (PBL) model assisted by wordwall is used as a solution. This study aims to determine the effect of the Problem Based Learning (PBL) model assisted by wordwall media on critical thinking skills of seventh grade students of SMP Negeri 6 Samarinda. This research is a quantitative study using a quasi-experimental method with a non-equivalent control group design. The research sample consisted of classes VII C (experimental) and VII D (control), each with 21 students. Data analysis was carried out through normality tests, homogeneity tests, independent sample t-tests and N-Gain tests using SPSS version 25 data processing tools. The results showed a significant difference between the two classes (p = 0.001 < 0.05). The average N-Gain of the experimental class was 0.549 (medium category), higher than the control class of 0.281 (low category). These findings indicate that the implementation of problem-based learning assisted by word walls effectively improves students' critical thinking skills in science learning.