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Morphological and Cytological Characteristics of Tomato Plants (Solanum lycopersicum L.) Induced by Tapak Dara (Catharanthus roseus (L.) G. Don) Extract Tri Wulandari; Ika Listiana; Ovi Prasetya Winandari
Biology, Medicine, & Natural Product Chemistry Vol 15, No 1 (2026)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2026.151.1171-1176

Abstract

Polyploidy is commonly induced using antimitotic agents such as colchicine, which is imported and relatively expensive, therefore, alternative antimitotic agents derived from local resources are needed. There are three main classes of antimitotic agents: taxanes, vinca alkaloids, and colchicine. Taxanes are obtained only from the bark of the western yew plant, colchicine is derived from Colchicum autumnale L., and vinca alkaloids are obtained from the tapak dara plant (Catharanthus roseus).  Therefore, the tapak dara plant has great potential as a source of antimitotic agents other than colchicine. This study aimed to determine the effect of tapak dara flower extract on the morphological and cytological characteristics of tomato plants (Solanum lycopersicum L.). The research used a completely randomized design with four treatment levels and five replications: P0 = control treatment, P1 = 0.05% concentration, P2 = 0.1% concentration, and P3 = 0.15% concentration, with a soaking duration of 10 hours. The observed parameters included germination percentage (%), plant height, number of leaves, number of flowers, and chromosome number. Data were analyzed using one-way ANOVA followed by Duncan’s multiple range test at the 5% significance level. The results showed significant effects on the number of leaves, number of flowers, and chromosome number. Treatment P1, with a concentration of 0.05%, was the best treatment.
Systematic Literature Review: Profil Literasi Digital dalam Pembelajaran Biologi di Sekolah Menengah Atas Yesi Desta Linda; Meita Dwi Solviana; Ovi Prasetya Winandari
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 7 No. 3 (2026): August (Inpres)
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v7i3.2824

Abstract

The digital era demands that students be capable of accessing, comprehending, evaluating, and utilizing digital information critically and responsibly. However, studies specifically mapping digital literacy profiles within high school (SMA) biology education remain limited and fragmented. This study aims to identify research trends, describe primary research focuses, analyze students' digital literacy profiles, and map the benefits, challenges, and developments of research regarding digital literacy in high school biology education during the 2021–2025 period. The study employs a Systematic Literature Review (SLR) approach following the PRISMA protocol. Articles were retrieved using the *Publish or Perish* application, linked to Google Scholar and other reputable academic databases. Bibliometric analysis was conducted using VOSviewer software to map thematic interconnections and keyword trends. The findings indicate that the digital literacy profiles of high school students in biology education range from low to high, depending on the context and instruments employed. The most frequently studied digital literacy indicators include information-seeking skills, content evaluation, and digital navigation. Factors influencing digital literacy include technology availability, learning models, and the implementation of digital-based interactive media. The integration of digital platforms and media—such as e-modules, Google Classroom, Augmented Reality, and gamification-based media—has been shown to significantly enhance digital literacy. The study concludes that strengthening digital literacy in high school biology education requires a structured approach utilizing integrated, technology-based learning strategies.