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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Biologi Tropis Jurnal Pengabdian Magister Pendidikan IPA Jurnal Pengabdian Masyarakat Sains Indonesia (Indonesian Journal Of Science Community Services) Jurnal Ilmiah Profesi Pendidikan NUSRA: Jurnal Penelitian dan Ilmu Pendidikan
Lalu Zulkifli
Universitas Mataram
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Education Immunology & microbiology Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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Profil Pemahaman Konsep Pandemi Covid-19 Pada Siswa di SMA Negeri 1 Gerung Handriani Handriani; Lalu Zulkifli; Dewa Ayu Citra Rasmi; AA Sukarso
Jurnal Ilmiah Profesi Pendidikan Vol. 8 No. 1 (2023): Februari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jipp.v8i1.1080

Abstract

Penerapan protokol kesehatan dapat memutus mata rantai penularan virus Corona-19 sehingga pemahaman mengenai pandemi Covid-19 menjadi sangat penting. Penelitian ini bertujuan untuk mengetahui profil pemahaman konsep pandemi covid-19  pada siswa di SMA Negeri 1 Gerung . jenis penelitian yang akan digunakan adalah penelitian kuantitatif deskriptif. Sampel  dalam penelitian ini adalah siswa kelas X (MIPA dan IPS) dan XI (MIPA dan IPS). Teknik pengambilan sempel dalam penelitian ini adalah multistage cluster random sampling yang dimana setiap tingkatan kelas dipilih 4 kelas untuk mewakili tiap tingkat kelasnya. Instrumen yang digunakan dalam penelitian ini yaitu, angket pernyataan. Berdasarkan hasil penelitian adalah tidak ada siswa di SMAN 1 Gerung yang memiliki pemahaman konsep pandemi covid-19 yang sangat tinggi. Sebanyak 51 siswa yang memiliki pemahaman tinggi mengenai Pandemi Covid-19 (57 %). 38 siswa memiliki pemahaman sedang tentang pandemi covid-19 (42 %), dan hanya sedikit satu siswa yang memiliki pemahaman rendah (1%). Indikator pengetahuan tentang pandemi covid-19, penyebaran virus corona, mekanisme penularan virus corona, pencegahan covid-19, serta dampak dan gejala covid-19 ditemukan tinggi pada siswa SMA Negeri 1 Gerung, menunjukkan  bahwa siswa memahami konsep pandemi covid-19. Hanya indikator mengenai pengobatan covid-19 yang tergolong rendah.
The Effect of Phosphate-Solubilizing Bacteria and IAA Producers from Cactus Rhizosphere on the Germination of Vigna sinensis L. Muhammad Fikri Alfiansyah; Lalu Zulkifli; Dewa Ayu Citra Rasmi
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i3.5089

Abstract

This study aims to examine the effect of phosphate-solubilizing bacteria and IAA producers on the germination of Vigna sinensis L. The bacteria were isolated from the cactus rhizosphere in Senteluk Village, Batulayar Subdistrict, West Lombok. The soluble phosphate was measured qualitatively and quantitatively. Qualitative measurement was based on the solubility of P in the growth medium (solid Pikovskaya) with a clear zone indicator around the bacterial colonies. The solubility of P (liquid Pikovskaya) and IAA production were measured using a spectrophotometer at wavelengths of 430 nm and 530 nm, respectively. In vitro testing of the effects of phosphate-solubilizing bacteria and IAA-producing bacteria on the germination of long beans (Vigna sinensis L.), specifically the Parade tavi variety, was conducted by soaking the long bean seeds in the bacterial suspension and then planting them on Murphy agar medium. The plant height, root length, fresh weight, and dry weight were measured and analyzed using One-Way ANOVA. The bacterial characterization included colony morphology, cell shape, and biochemical tests. The research results obtained 8 isolates that could solubilize phosphate in the low category while producing IAA and 2 other isolates that only produced IAA. Quantitative phosphate solubilization showed the highest soluble phosphate on days 4 and 6 of incubation. The highest IAA production (14.25 ppm) was achieved by the rhizosphere bacterial isolate with the code RK7. The results showed that there was an indication of the influence of phosphate solubilizing and IAA-producing bacteria isolated from the rhizosphere of cactus on Vigna sinensis L. germination, although not significantly different. This shows that local bacterial isolates are quite potential as a source of biofertilizer development in the future.
The Effect of Burned Rice Husks and NPK Fertilizer Application on The Growth of Bok Choy (Brassica Rapa L. Subsp. Chinensis) Ranti Eka Lestari; Lalu Zulkifli; Ahmad Raksun
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5616

Abstract

Fertilizer is very important factor in achieving high productivity, especially in providing essential nutrients. The application of inorganic fertilizers without adding organic fertilizers potentially reduces soil fertility and damages soil structure. This study aimed to determine the effect of burned rice husks, NPK fertilizer application, on the growth of Chinensis bok choy (Brassica rapa L. Subsp. Chinensis). The study employed a completely randomized design (CRD) consisting of 2 factors, with 5 treatment levels. The burned rice husks treatments comprised (0 gr, 90 gr, 110 gr, 130 gr, and 150 gr), while the NPK fertilizer treatments comprised (0 gr, 0.4 gr, 0.6 gr, 0.8 gr, 1.0 gr / 100 ml water). Data were analyzed using an ANOVA test. The results showed that the NPK fertilizer factor significantly influenced all parameters, including plant height, leaf number, wet weight, and dry weight. The burned rice husks factor and the interaction between burned rice husks and NPK fertilizer had no significant effect on all parameters, namely plant height, leaf number, wet weight, and dry weight of the Chinensis bok choy. The optimal treatment for the interaction of burned rice husks and NPK fertilizer "Mutiara 16" was with the N4S4 treatment (combination of NPK Mutiara 1.0 gr/100 ml water and burned rice husks 150 gr) for plant height, leaf number, wet weight, and dry weight parameters, while the optimal treatment for chlorophyll concentration content was with the N3S2 treatment (combination of NPK Mutiara 0.8 gr/100 ml water and burned rice husks 110 gr).
Isolation and Molecular Characterization of Brotowali (Tinospora crispa) Rhizosphere Bacteria Producing Siderophore from Dry Lands of Lombok Island Sekar Partiwi; Agil Al Idrus; Lalu Zulkifli; Mahrus; Prapti Sedijani
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i2.6138

Abstract

In the context of biopesticide development, siderophore-producing rhizosphere bacteria play an important role as potential biological control agents. Siderophores are complex organic compounds produced by microorganisms to bind and take up iron ions (Fe3+) from the surrounding environment. This compound is very important because iron is a nutrient necessary for life for many microorganisms and plants. The aim of this research was to determine the type and ability of bacteria in the rhizosphere of Brotowali (Tinospora crispa) to produce siderophores. The method used in this research is an exploratory descriptive type. The isolation results obtained from the North Lombok area obtained 5 samples with codes B4A1, B6A1, BT61, BT63 and BT83. The results of the bacterial isolate potency test with Media Kings showed that only isolate BT63 showed clear fluorescence when exposed to ultraviolet light. Meanwhile, the Arnow's Assay test showed that only BT63 colonies experienced a color change to pink. The results of the molecular identification of the potential bacteria, namely BT63, using the BLAST method using the GenBank data base at NCBI, show that it is closely related to the species Bacillus thuringiensis strain FDAARGOS 791. The results above show that the rhizobacteria isolated from Brotowali have the potential to be developed as a natural biopesticide that can be applied in the future.
Development of Project-Based Learning Worksheets Based on Mangrove Ecosystems to Enhance Mangrove Ecosystem Literacy and Environmental Literacy of Students at SMPN 1 Lembar Husniatul Ummi; Abdul Syukur; Lalu Zulkifli
Jurnal Ilmiah Profesi Pendidikan Vol. 11 No. 1 (2026): Februari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jipp.v11i1.3036

Abstract

Penelitian ini dilatarbelakangi oleh rendahnya literasi ekosistem mangrove dan literasi lingkungan peserta didik dalam pembelajaran IPA, yang disebabkan oleh pembelajaran yang masih berfokus pada hafalan dan kurangnya pemanfaatan potensi lokal yang ada disekitar sekolah. Penelitian ini bertujuan untuk mengetahui kevalidan dari pengembangan Lembar Kerja Peserta Didik (LKPD) Model Project Based Learning Berbasis Ekosistem Mangrove untuk Meningkatkan Literasi Ekosistem Mangrove dan Literasi Lingkungan Peserta Didik. Penelitian ini menggunakan metode Research and Development (R&D) dengan model pengembangan 4D (define, design, develop, disseminate). Subjek dalam penelitian ini adalah peserta didik kelas VII SMPN 1 Lembar. Instrumen penelitian meliputi lembar validasi, observasi, angket respon, serta tes literasi ekosistem mangrove dan literasi lingkungan. Analisis data dilakukan dengan uji validitas,. Hasil penelitian menunjukkan bahwa pengembangan LKPD Model Project Based Learning Berbasis Ekosistem Mangrove valid dalam meningkatkan literasi ekosistem mangrove dan literasi ligkungan peserta didik. Hasil validasi dilakukan oleh tiga validator ahli yang menunjukkan nilai rata-rata kevalidan pengembangan ATP sebesar 0.71, Modul Ajar sebesar 0.71, LKPD sebesar 0.72, dan instrument tes sebesar 0.73 semua perangkat pembelajaran dalam kategori valid. Hasil realibilitas dilakukan oleh tiga validator ahli yang menunjukkan nilai rata-rata reabilitas pengembangan ATP sebesar 99.45%, Modul Ajar sebesar 97.12%, LKPD sebesar 97.43%, dan instrument tes sebesar 99.45% semua perangkat pembelajaran dalam kategori reliabel. Hasil penelitian ini menunjukkan bahwa instruen pengukuran yang digunakan dapat mengukur kemampuan literasi ekosistem mangrove dan kemampuan literasi lingkungan peserta didik dengan tingkat akurasi baik atau valid.
Development of LKPD Based on Mangrove Ecosystem to Improve Ecotourism Literacy of Junior High School Students on The South Coast of Lombok Island Karima Paspania; Abdul Syukur; Lalu Zulkifli
Jurnal Ilmiah Profesi Pendidikan Vol. 10 No. 1 (2025): Februari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jipp.v10i1.3145

Abstract

Student Worksheets (LKPD) are teaching materials designed to assist students in the learning process. The design and content structure of the LKPD reflect basic competencies, learning objectives, and indicators. This study aims to determine the characteristics, validity, practicality, and effectiveness of LKPD based on the mangrove ecosystem. The research method follows the 4D model, which consists of the stages of define, design, development, and disseminate. The research design employs a pretest-posttest control group design. Validation and reliability data are based on validation results and the percentage of agreement (PA) values of the research tools, as assessed by three validators, achieving an average score categorized as valid and reliable. Practicality was measured using teacher response questionnaires, which scored an average of 98%, categorized as very practical, and student response questionnaires, which scored an average of 97%, also categorized as very practical. The implementation of PBL-based learning activities achieved an average score of 91%, categorized as very practical. The effectiveness of the LKPD was evaluated using the N-gain test. The average pre-test score of junior high school students in the southern coastal area of Lombok Island was 34%, which improved to 87% in the post-test. The average N-gain score was calculated to be 1.3%, indicating a high level of improvement in students' ecotourism literacy.The N-gain test per indicator revealed that the highest increase in students' ecotourism literacy was in the area of knowledge about ecotourism, with an average improvement of 55.8%. Meanwhile, the average improvement in understanding the benefits of ecotourism for the environment and local communities was 50%. The lowest average increase, at 41.7%, was observed in attitudes toward supporting sustainable ecotourism.
Carbon Stock Potential of Mangrove Species in South Lombok Coastal Ecotourism Area Luthfiyannisa Luthfiyannisa; Agil Al Idrus; Abdul Syukur; Lalu Zulkifli
Jurnal Biologi Tropis Vol. 26 No. 2 (2026): April - Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i2.11729

Abstract

Data on carbon stocks in  mangroves within coastal ecotourism areas remain limited, despite their high potential as tropical blue carbon sinks. This study evaluates the carbon stock potential of mangrove species at Bale Mangrove Ecotourism Site using line transect-quadrat plot methods and IPCC guidelines, incorporating allometric biomass analysis (V = π(d/2)²th with genus-specific wood density). Key findings reveal total aboveground biomass of 22.95 ton/ha and carbon stock potential of 11.48 ton C/ha (equivalent to 42.12 ton CO₂/ha), dominated by Rhizophora mucronata (3.96 ton C/ha) due to larger stand size and high wood density (0.92 g/cm³), while Avicennia marina was lowest (0.06 ton C/ha) owing to minimal abundance. These inter-species differences reflect early  dynamics where pioneer Rhizophora excels in initial biomass accumulation. Overall, results confirm mangrove restoration's role in IPCC-based carbon inventories, with implications for sustainable ecotourism management to maximize long-term blue carbon capacity
Microplastic Analysis in Digestive Tracts of Baronang and Goatfish in Kuta Lombok Ninsanti Aura Jasanti; Lalu Zulkifli; Syamsul Bahri; Karnan Karnan
Jurnal Biologi Tropis Vol. 26 No. 2 (2026): April - Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i2.12147

Abstract

Microplastic pollution has become a significant environmental problem in marine ecosystems, particularly in coastal areas impacted by increased anthropogenic activity. The coastal waters of Kuta, Lombok, are potentially exposed to plastic waste from tourism and fisheries, which can degrade into microplastics and enter the marine food chain. This study aims to identify the types, abundance, and characteristics of microplastics in the digestive tracts of rabbitfish (Siganus canaliculatus) and goatfish (Parupeneus multifasciatus). The study used a modified NOAA method for 60 fish samples, including hydrogen peroxide (H₂O₂) digestion and NaCl density separation, followed by microscopic observation. The results showed that microplastics were present in both fish species, consisting of fiber and fragment types, with fibers being the dominant type. Microplastic abundance was relatively low, at 0.6 particles/individual in rabbitfish and 0.5 particles/individual in goatfish. The dominant colors observed were black, blue, and red. These findings indicate that microplastic contamination has occurred in the study area, albeit at a relatively low level. Therefore, better plastic waste management and increased public awareness are recommended to reduce further contamination in coastal ecosystems.
Microplastic Abundance and Characteristics in Digestive Tract of Fish Tongkol Euthynnus affinis from Coastal Area of Ampenan, Mataram Oktry Zoelvianti; Lalu Zulkifli; Abdul Syukur; Karnan Karnan
Jurnal Biologi Tropis Vol. 26 No. 2 (2026): April - Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i2.12148

Abstract

The rise in plastic usage in Indonesia has resulted in a buildup of plastic waste both on land and in water bodies. Because it does not break down easily due to the lack of microorganisms that can degrade it, plastic remains in the environment and pollutes various living beings. Thus, it is important to conduct studies on microplastic contamination to evaluate the safety of fish, which is a widely eaten source of food. This study aimed to determine the abundance and characteristics of microplastics in Ikan Tongkol (Euthynnus affinis) from the coastal waters of Ampenan Beach. Sampling was conducted using a random sampling method. Tuna samples were collected from fishermen along the Ampenan coast three times, totaling 30 fish. The analysis was conducted through sample preparation, oxidation of organic matter, filtration, and microscopic observation. The results showed that microplastics had accumulated in the digestive tract of the Euthynnus affinis, with an abundance of 2.3 MP/Ind. The most dominant type of microplastic found was fiber, accounting for 65% of the total sample, with black being the predominant color. Four types of microplastics were identified in the digestive tract: 65% fiber, 20% fragments, 10% film, and 5% granules.
Analysis of Prospective Science Teachers’ Practicum Competencies in Promoting Sustainable and Quality Education (SDG 4) Mohammad Liwa Ilhamdi; Agil Al Idrus; Aliefman Hakim; Lalu Zulkifli; Aris Doyan; AA Sukarso
Jurnal Penelitian Pendidikan IPA Vol 12 No 4 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i4.14563

Abstract

Field practicum skills are a cornerstone of the professional competence of prospective biology teachers, yet their long-term developmental dynamics remain underexplored. This study aims to map the profile of field practicum abilities among Biology Education students at the Mataram University over a five-year period (2020-2024). Using a longitudinal quantitative approach, data were collected from 120 students through a structured, expert-validated questionnaire and analyzed using descriptive statistics and the non-parametric Kruskal-Wallis and Dunn's tests. The results indicate significant fluctuations in competency achievement: the highest average was in 2022 (79.28; SD=3.13) and the lowest in 2023 (65.93; SD=0.78). The Kruskal-Wallis test confirmed significant differences between years (χ² = 80.67; p < 0.05), with specific year pairs (e.g., 2022 vs. 2023) showing marked disparities. These findings reveal that field practicum ability is highly susceptible to curricular factors, institutional policies, and external disruptions such as extreme weather. The implication is that the development of prospective science teachers requires a learning ecosystem that is adaptive, evidence-based, and capable of proactively responding to environmental uncertainty.
Co-Authors AA Sukarso Abdul Syukur Abdul Syukur Agil Al Idrus Agil Al Idrus Agus Ramdani Ahmad Raksun Ahmad Raksun Alfina Alfina Aliefman Hakim Anida Firliana Dewi Aris Doyan Dadi Setiadi Dewa Ayu Citra Rasmi Dewa Ayu Citra Rasmi Dewa Ayu Citra Rasmi Didik Santoso Dwi Soelistya Dyah Jekti Fadhila Karunia Fitri H. Mahrus Hairunnadawiah Hairunnadawiah Handriani Handriani Husniatul Ummi I Gde Mertha I Wayan Mertha Imam Bachtiar Irawan Zain Irawan Zain Jamaluddin Jamaluddin Karima Paspania Karnan Karnan Khairuddin Khairuddin Lalu Japa Luthfiyannisa Luthfiyannisa M. Liwa Ilhamdi Mahrus Mahrus Mahrus Mahrus Mahrus Mahrus Miko Erniarti Mohammad Liwa Ilhamdi Muhammad Fikri Alfiansyah Nada Purnama Sari Ninsanti Aura Jasanti Nuraeni Muntari Nurul Rizqiyah Oktry Zoelvianti Prapti Sedijani Prapti Sedijani Priyo Hartanto Putri Ainayah Alfatihah Putri Alfianti Sriwinahyu Raja Akbar Ranti Eka Lestari Samsul Bahri Sekar Partiwi Sepriana, Citra Syamsul Bahri Syamsul Bahri Yeyen Nilamsari Putri Yulia Ningsih Yuni Safrian Hadi Yunita Fatmala Zuaem