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YAYAN SANJAYA
Universitas Pendidikan Indonesia
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Eksplorasi Literasi Tumbuhan pada Siswa Sekolah Menengah Atas di Mentawai: Pendekatan Kuantitatif melalui Inventarisasi, Pengolahan, dan Pelaporan Data aflahul, ridwan Tanjung; Sanjaya, Yayan; Solihat, Rini; Virijai, Febrian; Jasid, Adhara; Azizah, Cici Nur
JURNAL EKSAKTA PENDIDIKAN (JEP) Vol 9 No 1 (2025): JEP (Jurnal Eksakta Pendidikan)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jep/vol9-iss1/973

Abstract

This study explores the plant literacy of high school students in the Mentawai Islands using a quantitative approach that integrates data inventory, processing, and reporting. A survey method was utilized, involving 302 students from three schools, to evaluate their understanding of plants across nominal, functional, structural, and multidimensional levels. Research instruments were validated for reliability with a Cronbach's Alpha of 0.973, ensuring robust data collection. Findings reveal low plant literacy levels across all dimensions, with significant challenges in identifying plants and contextualizing biodiversity concepts. The study underscores the necessity of innovative, contextual learning methods, including practical and exploratory approaches to improve plant literacy. Recommendations include integrating local biodiversity into educational curricula and promoting nature-based activities to enhance students' ecological awareness and comprehension.
Enhancing Red-Chili (Capsicum annuum L.) Growth Using Black Soldier Fly (Hermetia illucens) Probiotics as Carrier Hadid, Mulyana; Sanjaya, Yayan; Kusnadi
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 10, No 2 (2025): June 2025
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v10i2.11214

Abstract

Red chili (Capsicum annuum L.) is a crucial horticultural commodity in Indonesia, necessitating expansion to meet the growing food demands. The formulation of carriers with probiotics is a promising solution for improving red chili growth. This study examines how the combination of carriers containing bacteria and Trichoderma from the intestines of Hermetia illucens larvae affects the growth of red chili cultivar Lembang-1. The research method used a Randomized Block Design (RBD) with six treatments. The treatment consisted of a group with the addition of a kaolin carrier with bacteria and Trichoderma (BTrK), a talc carrier with bacteria and Trichoderma (BTrT), a zeolite carrier with bacteria and Trichoderma (BTrZ), and a control group without a carrier (KtC), a positive control (K(+)), and a negative control (K(-). The Least Significant Difference (LSD) test showed that the addition of carriers affected increasing plant height and the number of branches compared to the negative control. Specifically, BTrK demonstrated the highest number of leaves and branches. The result concluded that adding carriers with probiotics from the intestine isolate of BSF larvae contributes to the improved growth of red chili. The implementation of carrier addition with probiotics is considered to be a sustainable strategy in agriculture.
PENGARUH INTEGRASI TEKNIK CHUNKING DAN WRITING IS THINKING TERHADAP LEVEL BERPIKIR SISWA PADA MATERI SISTEM REPRODUKSI MANUSIA Putri, Meirin Dwiningtyas; Rahmat, Adi; Sanjaya, Yayan
STRATEGY : Jurnal Inovasi Strategi dan Model Pembelajaran Vol. 5 No. 2 (2025)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/strategi.v5i2.4846

Abstract

ABSTRACT Learning is a process of learning activities to acquire knowledge. The learning process in the classroom should be directed towards being able to understand the information obtained and relate it to everyday life. The purpose of this research was to obtain information on effect the integration of chunking techniques and writing is thinking on students' thinking levels on the material of human reproductive system. The method used in this study was a quasi-experimental study with a pretest and posttest design. The subjects of this study were 56 students of class XI MIPA at a Senior High School in Tasikmalaya City who were selected through a purposive sampling technique. The instruments in the study used multiple choice questions and essay questions. The findings showed that students whose learning process used the integration of chunking techniques and writing is thinking had an effect on students' thinking levels. The integration of chunking techniques and writing is thinking can help process information by breaking down information into simpler pieces of information to make it easier for students to process the knowledge they have acquired and then write the information they have obtained into simpler language so as to help students in the learning process. ABSTRAK Pembelajaran merupakan suatu proses kegiatan belajar untuk memperoleh pengetahuan. Proses pembelajaran di dalam kelas seharusnya diarahkan untuk dapat memahami informasi yang diperolehnya dan dihubungkan dalam kehidupan sehari-hari. Tujuan penelitian ini adalah untuk memperoleh informasi pengaruh integrasi teknik chunking dan writing is thinking terhadap level berpikir siswa pada materi sistem reproduksi manusia. Metode yang digunakan dalam penelitian ini adalah quasy eksperimen dengan desain pretest and posttest design. Subjek penelitian ini adalah siswa kelas XI MIPA di salah satu SMA Negeri Kota Tasikmalaya yang berjumlah 56 siswa yang dipilih melalui teknik purposive sampling. Instrumen dalam penelitian menggunakan soal multiple choice dan soal uraian. Hasil temuan menunjukkan bahwa siswa yang proses belajarnya menggunakan integrasi teknik chunking dan writing is thinking berpengaruh terhadap level berpikir siswa. Integrasi teknik chunking dan writing is thinking dapat membantu memproses informasi dengan memecah informasi menjadi potongan informasi yang lebih sederhana untuk memudahkan siswa dalam memproses pengetahuan yang diperolehnya kemudian menuliskan informasi yang diperolehnya kedalam bahasa yang lebih sederhana sehingga membantu siswa dalam proses pembelajaran.
The Reflective Thinking Skills of Prospective Teacher on Invertebrate Zoology Course Citraningrum, Mivtha; Sanjaya, Yayan; Sudargo, Fransisca; Riandi, Riandi
Biosfer: Jurnal Tadris Biologi Vol 13 No 1 (2022): Biosfer: Jurnal Tadris Biologi
Publisher : UNIVERSITAS ISLAM NEGERI RADEN INTAN LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/biosfer.v13i1.12310

Abstract

The purpose of this study was to explore the reflective thinking skills of students as prospective teachers in the invertebrate zoology course through an analysis of the learning process of the literature provided during lectures. The research method used was the case study of the invertebrate zoology lecturing process. The instruments in this study were observation sheets, task analysis used in lectures, and a questionnaire about students' perceptions of lecture activities. The results showed that the Invertebrate Zoology lectures only focused on concepts or theories and did not provide reflective thinking skills. Therefore, Zoology lectures have not shown a balanced mastery of concepts and reflective thinking skills.ABSTRAK: Tujuan penelitian ini adalah untuk menggali kemampuan berpikir reflektif mahasiswa calon guru pada mata kuliah zoologi invertebrata melalui analisis proses pembelajaran hingga analisis literatur yang diberikan selama perkuliahan. Metode penelitian yang digunakan adalah studi kasus terhadap proses perkuliahan zoologi invertebrata. Instrumen dalam penelitian ini adalah lembar observasi, analisis tugas yang digunakan dalam perkuliahan, angket tentang respon mahasiswa terhadap kegiatan perkuliahan. Hasil penelitian menunjukkan perkuliahan zoologi Invertebrata yang di berikan hanya fokus pada konsep atau teori dan tidak memberikan keterampilan berpikir reflektif. Artinya, perkuliahan zoologi belum menunjukkan bekal penguasaan konsep dan kemampuan berpikir reflektif yang seimbang.
Development of Inquiry-Based Student Worksheet on the Phylum Platyhelminthes, Nemathelmintes, and Annelida Materials Citraningrum, Mivtha; Sanjaya, Yayan; Sudargo, Fransisca; Riandi, Riandi; Rakhmawati, Ismi; Haka, Nukhbatul Bidayati
Biosfer: Jurnal Tadris Biologi Vol 16 No 1 (2025): Biosfer: Jurnal Tadris Biologi
Publisher : UNIVERSITAS ISLAM NEGERI RADEN INTAN LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/biosfer.v16i1.28158

Abstract

This study aims to develop student worksheets on Vermes (worms). The research method employed is Research and Development with the 4D development model consisting of four stages: defining (Define), designing (Design), developing (Develop), and disseminating (Disseminate). The study results indicate that the student worksheet developed is feasible based on the validation results by three experts in media, material, and language. It can be concluded that the worksheet of Phylum Platyhelminthes, Nemathelmintes and Annelida is feasible to be used as a new learning resource. It is recommended that further research focus on implementation to analyze the effectiveness of these worksheets in improving students' reflective thinking skills. Pengembangan Lembar Kerja Mahasiswa (LKM) Berbasis Inkuiri Pada Materi Filum Platyhelminthes, Nemathelmintes Dan Annelida ABSTRAK: Penelitian ini bertujuan untuk mengembangkan Lembar kerja mahasiswa pada materi Vermes (Cacing). Metode penelitian yang digunakan adalah Reseach and Development dengan model pengembangan 4D terdiri atas pendefinisian (Define), perancangan (Design), pengembangan (Develop), dan penyebaran (Disseminate). Hasil penelitian menunjukkan bahwa Lembar kerja mahasiswa yang telah dibuat layak dikembangkan berdasarkan hasil validasi tiga ahli (media, materi dan bahasa). Dapat disimpulkan bahwa Lembar Kerja Mahasiswa yang memaparkan materi Filum Platyhelminthes, Nemathelmintes dan Annelida layak digunakan sebagai sumber belajar baru. Rekomendasi yang diberikan untuk penelitian selanjutnya adalah implementasi untuk melihat seberapa besar efektifitas sumber belajar ini dalam meningkatkan kemampuan berpikir reflektif mahasiswa.
Data inventory, processing, and reporting on plant blindness among high school students in three schools in West Java Soraya, Puan Helwa Rezha; Solihat, Rini; Sanjaya, Yayan; Harada, Taro
Biosfer: Jurnal Pendidikan Biologi Vol. 18 No. 2 (2025): Biosfer: Jurnal Pendidikan Biologi
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/biosferjpb.52674

Abstract

Plant blindness is a problem related to a person's inability to realize, recognize, and know the benefits and roles of plants. After some research, there was a shift in the term, from Plant Blindness to Plant Awareness Disparity. This study aims to find out the prevalence of Plant Blindness in three high schools in West Java. The method used in this study is descriptive Cross sectional. The results of this study revealed that there were differences in the level of plant awareness in the three schools studied. One of the schools in the city of Bandung showed the highest plant awareness rate. In addition, it was also found that students who had a high level of plant awareness had a high perception of plant awareness. As a follow-up, further research can be carried out to collect more data so that it becomes a whole population. In addition, researchers can then use additional instruments so that more things can be revealed about plant blindness.
The Enhancing Capsicum annuum L. Disease Resistance with Carrier and BSF Larval Gut Microbes Nururrahmani, Azmah; Sanjaya, Yayan; Hernawati
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 10, No 3 (2025): October 2025
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v10i3.11211

Abstract

Red chili (Capsicum annuum L.) is one of the essential vegetable commodities in Indonesia. Nevertheless, the production of red chili is affected by disease due to fungal infection. Previous research showed that the consortial formulation of bacterial and Trichoderma without a carrier from Black Soldier Fly (Hermetia illucens) larva gut enhanced the disease resistance of red chili. Regardless, the research has not overcome several diseases caused by fungal infection. This study aims to analyze the effect of adding kaolin, talc, and zeolite as carriers with bacterial and Trichoderma consortia from BSF larval gut on the disease resistance of red chili caused by fungal infection. This experimental study was carried out in a randomized block design. The treatments were consortial of bacterial and Trichoderma + carrier kaolin (BTrK), talc (BTrT), zeolite (BTrZ), positive control of consortial without a carrier (K+(1)), positive control of inorganic treatment (K+(2)), and negative control of plants without treatment (K(-)). The results were analyzed by calculating disease incidence (DI) and severity intensity (SI) scores to determine disease resistance. New findings prove that BTrK enhanced resistance to fungal infection, namely cercospora leaf spot, leaf rust, and powdery mildew. BTrT formulation enhanced resistance to symptom severity. The study concluded that carrier formulation enhanced the resistance of red chili.
Persepsi Siswa terhadap Keanekaragaman Hayati dan Pengetahuan Tumbuhan untuk Mengukur Literasi Tumbuhan Siswa SMA di Kabupaten Kepulauan Mentawai Ridwan, Ridwan; Sanjaya, Yayan; Solihat, Rini; Fahmi, Rahmat
Bioedusiana: Jurnal Pendidikan Biologi Vol 10, No 1 (2025): Bioedusiana
Publisher : Jurusan Pendidikan Biologi - Universitas Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37058/bioed.v10i1.13437

Abstract

Penelitian ini penting karena literasi tumbuhan siswa SMA di Kabupaten Kepulauan Mentawai masih minim, padahal pemahaman tentang keanekaragaman hayati sangat diperlukan untuk mendukung pelestarian lingkungan di wilayah yang kaya akan flora. Penelitian ini bertujuan untuk mengukur literasi tumbuhan siswa SMA di Kabupaten Kepulauan Mentawai dengan mengeksplorasi persepsi mereka terhadap keanekaragaman hayati dan pengetahuan tumbuhan yang ada di lingkungan mereka. Metode yang digunakan adalah pendekatan kuantitatif dengan teknik survei, menggunakan kuesioner untuk mengumpulkan data dari 302 siswa di tiga SMA di Kabupaten Kepulauan Mentawai. Analisis data dilakukan dengan uji deskriptif, uji normalitas, uji linieritas, uji t, dan uji korelasi menggunakan SPSS 30. Hasil penelitian menunjukkan bahwa terdapat hubungan positif yang signifikan antara interaksi siswa dengan lingkungan alam dan pengetahuan mereka tentang tumbuhan (r = 0.412, p 0.05), dengan 16.9% variasi pengetahuan dapat dijelaskan oleh interaksi tersebut. Kesimpulannya, pendidikan lingkungan yang melibatkan pengalaman langsung di alam memiliki potensi besar untuk meningkatkan literasi tumbuhan siswa. Oleh karena itu, disarankan agar pembelajaran tentang keanekaragaman hayati dan tumbuhan di SMA lebih banyak melibatkan kegiatan praktis di alam, serta memperkuat kurikulum berbasis pengalaman dan kerja sama dengan lembaga lingkungan.
Enhancing Students' Critical Thinking Skills Through Problem-Based Learning Values Clarification Technique (PBLVCT) on The Human Respiration System Concept Yusni, Diana; Sanjaya, Yayan; Kusnadi, Kusnadi
Journal of Natural Science and Integration Vol 6, No 2 (2023): Journal of Natural Science and Integration
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jnsi.v6i2.31382

Abstract

The purpose of this research is to develop a Problem-Based Learning Values Clarification Technique (PBLVCT) model for teaching the human respiration system and to evaluate its effectiveness in enhancing students' critical thinking skills. The study employed a quasi-experimental method with a pretest-posttest control group design. Two groups, selected through convenience sampling, were used as research samples. Data were collected using pre-tests and post-tests in both groups, and analyzed using the Paired Sample T-test to identify differences in critical thinking skills between the groups after the intervention. Additionally, the N-Gain test was used to assess improvements in critical thinking skills. During the learning process, students were supported with electronic Learner Worksheets (e-LKPD) to facilitate adherence to the learning model's syntax. The results indicated a significant increase in students' critical thinking skills following the implementation of the PBLVCT model, with the experimental class showing a higher N-Gain value compared to the control class. Therefore, teaching Biology with an integrated character values through the PBLVCT model can enhance students' critical thinking skills, enabling them to address social issues in their environment and develop sustainable solutions that benefit both themselves and their communities. This research is expected to contribute to the development of teaching methods and curricula, particularly in enhancing and innovating the implementation of character education in schools.Keywords: Problem Based Learning Values Clarification Technique (PBLVCT) model, Critical thinking skills, Respiration system in humans.
INFECTION PROCESS OF ENTOMOPATHOGENIC FUNGI Metarhizium anisopliae IN THE Tetranychus kanzawai (KISHIDA) (TETRANYCHIDAE: ACARINA) Sanjaya, Yayan; Ocampo, Virginia R.; Caoili, Barbara L.
AGRIVITA Journal of Agricultural Science Vol 35, No 1 (2013)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v35i1.180

Abstract

The importance of fungal attack to acarina has been observed but not yet on Tetranychus kanzawai. When infected mite, either within in a same  species or even in a different  species of  entomopathigenic probably  have  similar signs and simptoms to mites.  Characteristic of entomopathogenic fungus to Tetranychus kanza-wai was investigated. Three selected isolates of Metarhizium anisopliae, from Philippines and Indonesia were evaluated. The following aspects were investigated: (1) Bioassay tes of virulence, (2) Koch Postulate and (3) Infection process on each fungus against mite. Virulence of  Metarhizium anisopliae was 1.4 X 103, 7.2 X 102 , 5 X 102 PIB per ml on Ma4, Ma5 and Ma6, respectively. On Koch Postulates, Reinoculation and reisolation of all seven isolates from infected T. kanzawai showed definite signs of infection. This demonstrated its entomopathogenic capacity. In this experiment, adult mites were sprayed with 108 per ml concentrations of conidia observed under light microscope and Scanning Electron Microscopy (SEM). The result found  T. kanzawai was very susceptible to three isolates M. anisopliae. In the end of the trials, fungal growth was detectable as early as 2 until 4 days of observation. Infection process with microphoto-graph and Scanning Electro Microscopy showed attachment, germination and penetration, extrusion and conidiogenesis fungal form. Keywords: Infection, Tetranychus kanzawai, Metarhizium anisopliae, Light micros-copy, Scanning Electro Microscopy (SEM)
Co-Authors -, Eliyawati A S Ramdani Adi Rahmat aflahul, ridwan Tanjung Anisa Solehah Nurwendah Anna L.H. Dibiyantoro Anna Permanasari Annissa Mawardini Any Aryani Aryanti, Fitri Ate, Yustinus Ghanggo Aziz, Adika Muhammad Azizah, Cici Nur Barbara L. Caoili CITA TRESNAWATI Citraningrum, Mivtha Diana Rochintaniawati Dibiyantoro, Anna LH. Dita Puspitasari Dwi Anggorowati Rahayu Eliyawati Eliyawati Fadilah, Solikhah Isti Fahmi, Rahmat Fitri Aryanti Fitri Aryanti Fransisca Sudargo Fransisca Sudargo Fransisca Sudargo Geterudis Kerans Ghanggo Ate, Yustinus Ghina Nur Inayah Hadid, Mulyana Hadistia, Nabilla Hanna Nurul Husna Harada, Taro Hernawati Hernawati Hernawati Istiqomah, Anggi Jasid, Adhara Joko Pamungkas Jumrodah Jumrodah Jumrodah Jumrodah kerans, geterudis Kusnadi Kusnadi Kusnadi Kusnadi Kusumastuti, Mimin Nurjhani Liliasari Liliasari , Melanie Kristi MIMI HALIMAH Mimin Nurjhani Mimin Nurjhani Kusumastuti Mivtha Citraningrum Mrs Yanti Hamdiyati Muhtiara Yaser Muthiara Yasser Nanin Diah Nia Maulidhia Ibrahim Nia Nurdiani Nisa Pangsuma Nukhbatul Bidayati Haka Nurhanifah, Nada Nururrahmani, Azmah Nuryani Yogipranata Rustaman Peristiwati, Peristiwati Purwanto, Muhammad Guntur Putri, Meirin Dwiningtyas Putri, Weni Anissa R. Riandi, R. Rahadian Deden Juansa Rakhmawati, Ismi Reni Ambarwati Resti*, Novita Riandi Riandi Ridwan, Ridwan Rifki Risma Munandar Rina Sumarni Rini Solihat Rizky Nadhif Nandana S Liliasari Saefudin Saefudin Santy, S Shani, Nadiya Syafia Silaban, Oky Rizkiana Siswi, Nur Rokhmani Tri Soesy Asiah Soesilawati Soraya, Puan Helwa Rezha Suhara, . Surakusuma, Wahyu Tjandra Anggraeni Topik Hidayat Try Kurniawan Ulfi Faizah Virginia R. Ocampo Virijai, Febrian Wahyu Surakusumah Wardono Niloperbowo Wardono Noloperbowo Weni Anissa Putri Widi Purwianingsih Win Heri Sarfudin Yanti Rohmayanti Yenni Verawati Yusni, Diana Yusuf H Adisendjaja Yusuf Hilmi Adisendjaja Zamzam Nursani