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All Journal Biocaster : Jurnal Kajian Biologi
Imas Cintamulya
Biology Education Study Program, Faculty of Teacher Training and Education, PGRI Ronggolawe University, Manunggal Street Number 61, Tuban, East Java 62391, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology

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The Effect of Coconut Water on the Growth of Aloe vera Plants as a Source of Biology Learning Sandi Laili Magfiroh; Imas Cintamulya
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 3 (2026): July
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i3.1417

Abstract

Contextual biology learning requires locally based learning resources that are easy to apply in research activities. One local resource is coconut water, which contains nutrients and natural growth hormones to support plant growth. This study aims to determine the effect of coconut water on the growth of Aloe vera plants and to identify the optimal concentrations of coconut water for different growth parameters, as a locally based biology learning resource. The method used was a completely randomized experimental design with five coconut water concentration treatments (20%, 40%, 60%, 80%, and 100%) and five replicates per treatment. The growth parameters observed included the number of leaves, leaf height, and root length over a four-week period. The data were analysed using ANOVA and Duncan's post hoc test at the 5% significance level. The results showed that coconut water significantly affected Aloe vera growth (p < 0,05). The 80% concentration produced the highest number of leaves (5,35 leaves), the 100% concentration produced the highest leaf height (11.50 cm), and the 60% concentration produced the greatest root length (3.95 cm). These findings indicate that different growth parameters responded optimally to different coconut water concentrations. These findings suggest that coconut water can serve as an affordable, locally available resource for biology education, enabling students to conduct experimental investigations into plant growth while developing skills in observation, measurement, data analysis, and scientific reasoning.
Utilization of Moringa oleifera L. Extract on the Growth of Allium cepa L. Shoots as a Biological Learning Resource Siska Dwi Anggraini; Imas Cintamulya
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 3 (2026): July
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i3.1453

Abstract

The utilization of Moringa oleifera L., leaf extract as a natural plant biostimulant has attracted considerable attention; however, its effect on the early growth of Allium cepa L., sprouts remains unclear. This study was conducted to assess the effect of Moringa oleifera L., leaf extract on plant growth of Allium cepa L., sprouts and to explore its potential as a local-potential-based biology learning resource. This research applied an experimental approach using a completely randomized design with four different concentrations of moringa leaf extract (25%, 50%, 75%, and 100%) with six replications. The observed parameters were leaf number and plant height at 5, 8, 11, and 14 Days After Planting (DAP). Data were analyzed using one-way Analysis of Variance (ANOVA) at a 5% significance level. The results indicated that different concentrations of moringa leaf extract had no significant effect on the number of leaves (F = 0,080; p = 0,970) or plant height (F = 1,114; p = 0,367) of Allium cepa L., during the 14-day observation period. Nevertheless, the experimental procedure provides a practical and locally relevant learning resource for teaching plant growth and development concepts as well as scientific inquiry skills in biology education.
Co-Authors Sandi Laili Magfiroh Siska Dwi Anggraini