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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
Lalu Zulkifli
Universitas Mataram
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Education Immunology & microbiology Library & Information Science Materials Science & Nanotechnology Physics Public Health Social Sciences

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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.
Co-Authors AA Sukarso Abdul Syukur Abdul Syukur Agil Al Idrus Agil Al Idrus Agus Ramdani Ahmad Raksun Ahmad Raksun Anida Firliana Dewi 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 I Gde Mertha I Wayan Mertha Imam Bachtiar Khairuddin Khairuddin Lalu Japa M. Liwa Ilhamdi Mahrus Mahrus Mahrus Mahrus Mahrus Mahrus Miko Erniarti Muhammad Fikri Alfiansyah Nada Purnama Sari Nuraeni Muntari Nurul Rizqiyah 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