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All Journal Jurnal Pendidikan Indonesia GRADIEN Jurnal Pendidikan Biologi Indonesia Jurnal Florea Pro-Life Jurnal Biodjati Biosfer: Jurnal Pendidikan Biologi Proceeding Biology Education Conference
Rusdi Hasan
Program Studi Pendidikan Biologi Universitas Muhammadiyah Bengkulu, Indonesia Jalan Bali 118 Kota Bengkulu 38119
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Immunology & microbiology Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health

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Karakteristik Kalus dari Eksplan Batang Planlet Krisan (Chrysanthemum morifolium Ramat) pada Media dengan Konsentrasi 2,4-Dichlorophenoxyacetic Acid (2,4-D) dan 6-Benzylaminopurine (BAP) serta Kondisi Pencahayaan Setiawati, Tia; Arofah, Annisa Nur; Lestari, Ani; Hasan, Rusdi
Jurnal Pro-Life Vol. 11 No. 3 (2024): November
Publisher : Program Studi Pendidikan Biologi Fakultas Keguruan dan Ilmu Pendidikan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/pro-life.v11i3.6404

Abstract

This research aimed to obtain the optimal concentration combination of 2,4-D and BAP growth regulators for inducing callus from the stem explant of Chrysanthemum (C. morifolium Ramat) in bright and dark conditions. Stem explants of chrysanthemum were grown in culture medium supplemented with various concentrations and combinations of 2,4-D and BAP under different lighting conditions for 45 days after culture. A laboratory-scale experimental method was used in this research using Completely Randomized Design (CRD). The observed parameters were induction time, percentage formation, size, fresh weight, dry weight, texture, color, and various respones generated by callus. All data were analyzed descriptively. The results showed that all concentrations and combinations of growth regulators could induce callus. In bright condition, the fastest callus induction time was 7 days after culture; most calli were dark green and dark brown colored with compact texture; the callus size was 1.36 cm; also, the highest dry weight generated by callus was 0.17 gram. Meanwhile, in dark conditions, the fastest callus induction time was 6 days after culture; most calli were light green and light brown colored with compact texture; the callus size was 1.18 cm; and the highest dry weight generated by callus was 0.15 gram.
Microteaching Lesson Study of Biology Prospective Teacher to Develop Lesson Plan Design and Teaching Ability Lukitasari, Marheny; Hasan, Rusdi; Murtafiah, Wasilatul
Jurnal Pendidikan Indonesia Vol 10 No 3 (2021)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (307.09 KB) | DOI: 10.23887/jpi-undiksha.v10i3.22701

Abstract

This research aimed to develop the learning tools of the biological subject in high school and the teaching biology ability of the teacher candidates through microteaching-lesson study (MLS). The combination of MLS activities was unfolded in preparing the real learning conditions for prospective teachers who will conduct the field practice in the actual classroom. Data were collected through the observation sheets, interviews, and microteaching scores that represented the students' teaching ability. The data were analyzed descriptively. The results showed that each student capable of designing three learning plans with good and excellent categories. The teaching ability and classroom management of students increase by the three activities that conducted, as can be seen from the mean of first (55,77), the second (71,88), and the third (84,38) practice values. However, the students experienced difficulties in the stages of preparation and implementation concerning the more time needed as well as the more cycle activities. Therefore, the students argued that by the only three cycles of activities they experienced, then the LS would be constrained to introduce in the field practice program at school. The more cycles of MLS and guidance from the lecturer is still needed to make prospective teacher ready to implement LS in their field practice at school.
Project-Based Plant Morphology Module as Teaching Material for Students' Concept Mastery Murniati, Neni; Yennita, Yennita; Cahya, Malinda Dwi; Hasan, Rusdi
Biosfer: Jurnal Pendidikan Biologi Vol. 18 No. 1 (2025): Biosfer: Jurnal Pendidikan Biologi
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/biosferjpb.49896

Abstract

The necessity for teaching materials that can effectively facilitate students' skills has become increasingly evident in order to enhance concept mastery. The objective of this study is to develop teaching materials in the form of project-based modules on plant morphology for the purpose of facilitating concept mastery. The Project-Based Plant Morphology Module was developed in accordance with the ADDIE model (Branch, 2009), which comprises five phases: analysis, design, development, implementation, and evaluation. The research instruments utilized for the development process included a validation questionnaire, a student response questionnaire, and a concept mastery test. Validity of the module was obtained through the use of instruments in the form of book validation sheets, which were completed by experts in the fields of media, materials, and education. The module trials were obtained through the implementation instruments for the individual components and the management of the learning implementation. Product trials will be conducted with students enrolled in the Biology Education program during the second semester of the 2022/2023 academic year. The data used to validate the module was obtained from the module's expert validators using a validation sheet. The data obtained from the product trial is analyzed in order to assess the readability of the module. The results indicated that the plant morphology module was classified as "very feasible." The responses of students to the module indicated that it was categorized as "very easy to understand". Consequently, the plant morphology module is deemed a valuable and effective component of plant morphology courses
Perbedaan Struktur Morfologi, Anatomi, dan Fisiologi serta Kandungan Fitokimia Daun Aur-Aur (Commelina diffusa) pada Intensitas Cahaya Berbeda di Embung Leuwi Padjadjaran Handayani, Seviana Esti; Hasan, Rusdi; Mutaqin, Asep Zainal
Pro-Life Vol. 12 No. 1 (2025): Maret
Publisher : Program Studi Pendidikan Biologi Fakultas Keguruan dan Ilmu Pendidikan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Commelina diffusa (family Commelinaceae) contains various secondary metabolites with potential antimicrobial and antioxidant properties. The production of these compounds is influenced by environmental factors, exceptionally light intensity, which also plays a role in determining the plant’s morphological and anatomical characteristics. This study aims to analyze differences in leaf morphology, stomatal anatomical structure, chlorophyll content, and phytochemical compounds in C. diffusa leaves growing in two locations with different light conditions at Embung Leuwi Padjadjaran, Sumedang. A descriptive method was used to examine leaf morphology, stomatal anatomy, chlorophyll content, and phytochemical compounds of C. diffusa in shaded and unshaded locations. The results showed that leaf morphology was relatively similar in both locations, but the leaf surface area was more significant in unshaded conditions (8,33 cm²). The stomata were hexacytic type with higher stomatal density in the shaded condition (591,082 cell/mm²) and a higher chlorophyll content (37,73 CCI). The result of Phytochemical analysis confirmed the presence of alkaloids, flavonoids, saponins, tannins, and quinones, which were relatively higher in unshaded conditions.
Co-Authors Anak Agung Gede Sugianthara Ani Lestari Anizar Anizar Arofah, Annisa Nur Asep Zainal Mutaqin Cahya, Malinda Dwi Fitria, Sania Septiani Handayani, Seviana Esti Joko Kusmoro Kasmiruddin, Kasmiruddin Marheny Lukitasari Mohamad Nurzaman Neni Murniati Rachma, Nadhira Zaachrany Ruly Budiono, Ruly Sri Utami Tia Setiawati Wardani, Ade Kurnia Washfanisa, Handina Alya Wasilatul Murtafiah Yennita