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All Journal NUSRA: Jurnal Penelitian dan Ilmu Pendidikan
Imam Mahadi
Program Studi Pendidikan Biologi, Universitas Riau, Indonesia
Education Languange, Linguistic, Communication & Media Mathematics Other

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Pengaruh Konsentrasi POC limbah Kulit Jeruk Terhadap Pertumbuhan Tanaman Kangkung (Ipomoea reptans poir) Sebagai Rancangan Poster Biologi SMA Kelas XII Nisa Rahmawati; Imam Mahadi; Wan Syafi’i
NUSRA : Jurnal Penelitian dan Ilmu Pendidikan Vol. 7 No. 1 (2026): NUSRA: Jurnal Penelitian dan Ilmu Pendidikan, Februari 2026
Publisher : LPPM Institut Pendidikan Nusantara Global

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55681/nusra.v7i1.4078

Abstract

Abstract Orange peel waste is an organic waste containing essential nutrients such as nitrogen, phosphorus, and potassium, making it a potential raw material for Liquid Organic Fertilizer (LOF). This study aims to determine the effect of orange peel waste LOF concentrations on the growth of water spinach (Ipomoea reptans Poir) and to develop a learning media in the form of a poster for Grade XII high school biology on the topic of growth and development. The research was conducted from January to April 2025 in Tambang District and Binawidya Campus, Panam, using an experimental method with a Completely Randomized Design (CRD) consisting of five treatments (200 ml, 400 ml, 600 ml, 800 ml, and control), each replicated three times. Observed parameters included the number of leaves, plant height, root length, fresh weight, and dry weight. Data were analyzed using ANOVA followed by Duncan's Multiple Range Test (DMRT) at a 5% significance level. The results showed that the 600 ml LOF concentration had a significant effect on plant growth, particularly in the number of leaves, plant height, fresh weight, and dry weight, but had no significant effect on root length. The educational poster developed from the research findings was validated and deemed suitable as an alternative learning media in high school biology instruction.
Pengembangan LKPD Materi Inovasi Teknologi Biologi Melalui Kajian Pengaruh Penambahan Kayu Manis Dan Jenis Gula Terhadap Kualitas Water Kefir Nanas (Ananas Comosus (L.) Merr.) Azizah Safitri; Zulfarina; Imam Mahadi
NUSRA : Jurnal Penelitian dan Ilmu Pendidikan Vol. 7 No. 1 (2026): NUSRA: Jurnal Penelitian dan Ilmu Pendidikan, Februari 2026
Publisher : LPPM Institut Pendidikan Nusantara Global

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55681/nusra.v7i1.4089

Abstract

This study aims to develop a Student Worksheet (LKPD) design for the topic of Biological Technology Innovation in Grade X of Senior High School through the enrichment of functional beverage production in the form of water kefir made from pineapple (Ananas comosus (L.) Merr.) with the addition of cinnamon and different types of sugar. The research was conducted from October 2024 to February 2025 at the Biology Education Laboratory, University of Riau. The method used was an experimental approach with a completely randomized design (CRD) in a factorial pattern consisting of two factors: types of sugar (granulated sugar and palm sugar) and cinnamon concentration (0%, 1%, and 3%), with each treatment replicated three times. The observed parameters included organoleptic and hedonic tests. The results showed that the best combination was found in the treatment using palm sugar and 10 grams of cinnamon (G2K1). This water kefir was preferred by the panelists due to its mild sourness and a balanced aroma of fermentation and cinnamon. The findings of this study were subsequently integrated into the LKPD design and validated by subject matter and media experts, indicating its feasibility as an instructional material for biotechnology learning in high school.
Co-Authors Azizah Safitri Nisa Rahmawati Wan Syafi’i Zulfarina