Adella Shaharani
Universitas Islam Negeri Sumatera Utara

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Growth Response Of Tomato (Solanum lycopersicum) To The Combination Of Aloe Vera And Tauge (Flammulina velutipes) Extract) Yuli Erpiana Harahap; Indayana Febriani Tanjung; Adella Shaharani; Wanda Wanda Syahfitri
Biofarm Jurnal Ilmiah Pertanian Vol 19, No 1 (2023): BIOFARM JURNAL ILMIAH PERTANIAN
Publisher : Universitas Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31941/biofarm.v19i1.2692

Abstract

Utilization of appropriate plant species, one of which is aloe vera (Aloe vera) and bean sprouts (Flammulina velutipes), which are plant species whose extracts can be utilized as ZPT (Growth Regulatory Substances). The research was conducted in November 2022 with a total of 3 weeks of observations. The purpose of this study was to determine the growth response of tomato (Solanum lycopersicum) to a combination of aloe vera and bean sprouts (Flammulina velutipes) extracts. The materials used included tomato seeds, water, aloe vera extract and bean sprouts while the tools used included polybags, soil testers, hoes, gembor and stationery. The method in this study was carried out by RAK (Random Random Control) using 4 treatments including 0 cc, 15 cc, 20 cc, 25 cc with 3 weeks of observation. Watering is done 3 days once a week. The results obtained showed that treatment 3 (20 cc) had a significant impact on tomato growth.
Pengembangan LKPD Berbasis Contextual Teaching and Learning untuk Meningkatkan Keterampilan Berpikir Kritis Siswa Pada Materi Sistem Gerak Adella Shaharani; Kartika Manalu
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol. 8 No. 5 (2025): Bioedusains: Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/gjyfhb14

Abstract

This study aims to develop a student worksheet (Lembar Kerja Peserta Didik or LKPD) based on Contextual Teaching and Learning that is valid, practical, and effective for students. The research method employed was research and development, with instruments consisting of teacher and student needs questionnaires, material and media validation sheets, practicality sheets, as well as effectiveness sheets through pretests and posttests. Data analysis included validity, practicality, and effectiveness tests. The results indicated that the developed LKPD demonstrated high validity, was practical for both teachers and students, and was effective in enhancing students’ critical thinking skills. In conclusion, the LKPD based on Contextual Teaching and Learning can serve as appropriate teaching material to foster critical thinking skills in biology concepts. Keywords: Critical Thinking, Contextual Teaching And Learning, Development