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All Journal Didaktik : Jurnal Ilmiah PGSD STKIP Subang Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal)
Laura Capenesi Simanjuntak
Universitas Negeri Medan
Agriculture, Biological Sciences & Forestry Chemistry Education Physics

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Identifikasi Pengaruh Jenis Air Perendaman terhadap Fase Mitosis dan Pertumbuhan Akar Bawang Merah (Allium cepa L.) dengan Menggunakan Air Biasa, Air AC, dan Air Hujan Laura Capenesi Simanjuntak; Dhea Miranda Tambunan; Immanuel Siregar; Andrian Raja Noel Tampubolon; Larasati Arum Utami
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 7 No. 2 (2026): May
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v7i2.1988

Abstract

This study aimed to determine the effect of using tap water, air conditioner (AC) water, and rainwater on root growth and mitotic phases in shallot roots (Allium cepa L.). The study employed an experimental method with a quantitative descriptive approach and a Completely Randomized Design (CRD). Shallot bulbs were immersed for 48 hours in three different types of water: tap water, AC water, and rainwater. Observations were conducted on root length and mitotic phases through microscopic examination using the squash method. Data were collected through direct observation and documentation of the observation results, then analyzed descriptively by calculating the average root length and the frequency of mitotic phases observed. The results showed that all treatments were able to support root growth and mitotic activity in the root meristem tissue of shallots. The best root growth was observed in the tap water and rainwater treatments, with an average root length of 1.8 cm, while the AC water treatment produced an average root length of 1.7 cm. Microscopic observations revealed that root cells in all treatments were predominantly in the telophase stage, characterized by the reformation of the nuclear membrane and the initiation of cytokinesis. Differences in mineral content among the water types were presumed to influence cell division activity and root cell elongation. Therefore, the type of soaking water affected root growth, although all treatments were capable of supporting the mitotic process in Allium cepa L.
KAJIAN MORFOLOGI DAN KARAKTERISTIK FAMILI RUBIACEAE BERDASARKAN STUDI LITERATUR Hosyanna Situmorang; Icha Indah Wardani; Laura Capenesi Simanjuntak; Tri Wahyuni; Heppy Setya Prima
Didaktik : Jurnal Ilmiah PGSD STKIP Subang Vol. 12 No. 02 (2026): Volume 12 No. 2, Juni 2026 Publish
Publisher : STKIP Subang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36989/didaktik.v12i02.14484

Abstract

Rubiaceae is one of the flowering plant families with high species diversity and wide distribution in tropical and subtropical regions. However, comprehensive studies discussing the morphological and anatomical characteristics of Rubiaceae are still limited. This study aimed to examine the general morphological characteristics, anatomical features, adaptive functions, and potential uses of Rubiaceae based on literature studies. The research employed a qualitative descriptive method with a literature study approach using scientific journals, books, and relevant academic references as data sources. The collected data were analyzed descriptively by comparing and classifying information regarding stem, leaf, flower, fruit, and anatomical characteristics of several Rubiaceae species. The results showed that Rubiaceae generally possesses opposite single leaves with stipules, woody stems, compound flowers with diverse colors, and varied fruit forms. Anatomical characteristics such as epidermal structure, stomata, trichomes, and pollen morphology also support the identification and classification of this family. Morphological variation among species reflects adaptation to environmental conditions and habitat diversity. In addition, many Rubiaceae species have important economic and ethnobotanical values as medicinal plants, ornamental plants, food sources, and industrial materials. Therefore, the study of Rubiaceae morphology provides important scientific information that can support botanical studies, taxonomy, conservation, education, and sustainable utilization of plant resources.
Co-Authors Andrian Raja Noel Tampubolon Dhea Miranda Tambunan Heppy Setya Prima Hosyanna Situmorang Icha Indah Wardani Immanuel Siregar Larasati Arum Utami Tri Wahyuni