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All Journal Jurnal Penelitian Hutan Tanaman Jurnal Bioterdidik: Wahana Ekspresi Ilmiah Jurnal Wasian Jurnal Pendidikan : Riset dan Konseptual Jurnal Math Educator Nusantara: Wahana Publikasi Karya Tulis Ilmiah di Bidang Pendidikan Matematika Integrated Lab Journal SUPERMAT (JURNAL PENDIDIKAN MATEMATIKA) Jurnal Wasian Indonesian Journal of Jamu Jurnal Penelitian Hasil Hutan
Fajar Lestari
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Education Engineering Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Social Sciences

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EFIKASI Bacillus thuringiensis TERHADAP HAMAULAT DAUN GAHARU Heortia vitessoides Lestari, Fajar; Suryanto, Edi
Jurnal Penelitian Hutan Tanaman Vol 9, No 4 (2012): JURNAL PENELITIAN HUTAN TANAMAN
Publisher : Pusat Penelitian dan Pengembangan Peningkatan Produktivitas Hutan

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Abstract

ABSTRACTHeortia vitessoides worms attack gaharu plants in Kandangan, Regency of Hulu Sungai Selatan and Barabai, Regency of Hulu Sungai Tengah, Central Kalimantan province. This pest attack causes stunted growth of the gaharu plants. The objective of this study was to determine the efficacy of Bacillus thuringiensis against the worm pests H. vitessoides. The study was conducted in the protected forest laboratory of the Forest Research Institution of Banjarbaru and in the region of gaharu stands in Kandangan and Barabai, South Kalimantan. The research results showed that the insecticide with the active substance B. thuringiensis at a concentration of 0.5 g/l and 1.5gr/l effectively caused larval mortality of 100% on day 3, and the treatment with the concentration of 1 g/l and 2 g/l effectively caused 100% mortality of larvae on day 2 at the laboratory scale. At the field scale all concentrations resulted in 100% larval mortality at day 3. Variations of concentrations used did not significantly affect mortality of larvae in the laboratory and on the field.ABSTRAKUlat Heortia vitessoides menyerang tanaman gaharu di Kandangan Kabupaten Hulu Sungai Selatan dan Barabai Kabupaten Hulu Sungai Tengah Provinsi Kalimantan Selatan. Serangan hama ini menyebabkan terjadinya gangguan pertumbuhan pada tanaman gaharu. Tujuan penelitian ini untuk mengetahui efikasi Bacillus thuringiensis terhadap hama ulat H. vitessoides.   Penelitian dilakukan di laboratorium perlindungan hutan Balai Penelitian Kehutanan Banjarbaru dan areal tegakan gaharu di Kandangan dan Barabai, Kalimantan Selatan. Hasil penelitian menunjukkan bahwa insektisida berbahan aktif B. thuringiensis pada konsentrasi 0,5 gr/l dan 1,5gr/l efektif menyebabkan mortalitas larva sebesar 100% pada hari ke-3, perlakuan dan konsentrasi 1 gr/l dan 2 gr/l efektif menyebabkan mortalitas larva sebesar 100% pada hari ke-2 pada skala laboratorium. Skala lapangan menunjukkan bahwa semua konsentrasi menyebabkan mortalitas larva 100% pada hari ke-3, sementara variasi konsentrasi yang digunakan tidak berpengaruh nyata terhadap mortalitas larva pada skala laboratorium dan skala lapangan.
UJI EFIKASI EKSTRAK DAUN DAN BIJI DARI TANAMAN SUREN, MIMBA DAN SIRSAK TERHADAP MORTALITAS HAMA ULAT GAHARU Lestari, Fajar; Darwiati, Wida
Jurnal Penelitian Hutan Tanaman Vol 11, No 3 (2014): Jurnal Penelitian Hutan Tanaman
Publisher : Pusat Penelitian dan Pengembangan Hutan

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Abstract

ABSTRACTThe use of chemical pesticide has been limited considering its negative impact for the environment. Information about biological insecticide as worm Heortia vitessoides pest of agarwood is still limited. This research aimed to determine biological insecticide effectiveness of leaves and seed of suren, neem, and soursop as H. vitessoides worm controler. The research has been conducted in Forest Protection Laboratory of Forestry Research Institute of Banjarbaru. Researh used complete random design with 6 treatments and 3 replications. Research result showed that seed extract indicated high effect of insecticide compared to leaves. The highest mortality occurred on neem seed extract with concentration of 3% and 4%, and soursop seed extract of 4% concentration caused mortality of H. vitessoides larva as 100%, while on suren seed extract of 4% concentration mortality occurred as 53.33%. Type and concentration of insecticide had a significant effect on H. vitessoides larva mortality.ABSTRAKPenggunaan pestisida kimia dewasa ini mulai dibatasi, mengingat dampak negatif yang ditimbulkan terutama bagi lingkungan. Informasi tentang insektisida nabati sebagai pengendali hama ulat daun gaharu Heortia vitessoides masih terbatas. Penelitian ini bertujuan mengetahui efektifitas insektisida nabati ekstrak daun dan biji tanaman suren, mimba dan sirsak sebagai pengendali ulat H. vitessoides. Penelitian dilakukan di Laboratorium Perlindungan Hutan, Balai Penelitian Kehutanan Banjarbaru. Penelitian menggunakan Rancangan Acak Lengkap dengan 6 perlakuan 3 ulangan. Hasil penelitian menunjukkan bahwa ekstrak biji memberikan efek insektisidal tinggi dibandingkan dengan daun. Mortalitas paling tinggi terjadi pada perlakuan ekstrak biji mimba konsentrasi 3% dan 4% serta ekstrak biji sirsak konsentrasi 4% yang menyebabkan mortalitas larva H. vitessoides sebesar 100%, sedangkan ekstrak biji suren konsentrasi 4% memberikan efek mortalitas sebesar 53,33%. Jenis insektisida dan konsentrasi berpengaruh nyata terhadap mortalitas larva H. vitessoides.
PENGARUH PENGGUNAAN LKS BERBASIS INKUIRI TERBIMBING TERHADAP KETERAMPILAN PROSES SAINS SISWA Fajar Lestari; Arwin Achmad; Rini Rita T Marpaung
Jurnal Bioterdidik: Wahana Ekspresi Ilmiah Vol 3, No 8 (2015): Jurnal Bioterdidik
Publisher : Universitas Lampung

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Abstract

This study aimed to determine the effect of Student Work Sheet based on Guided Inquiry of students Science Process Skill. Study design was pretest-posttest non-equivalent group. Samples were VII3 and VII4 SMPN 1 Pagelaran which were chosen by Purposive Sampling. Quantitative data which obtained from the average value of test were analyzed by t-test and U-test. The qualitative data was observation of Science Process Skill and questionnaire responses that analyzed descriptively. The results showed that the average value of N-gain (69,99) in experiment class was higher than control class (46,69), significantly. Observation result of Science Process Skill has high criteria (79,16%), and most of the students gave positive respond to Student Work Sheet based on Guided Inquiry. Therefore, using Student Work Sheet based on Guided Inquiry could increase Science Process Skill.Penelitian ini bertujuan mengetahui pengaruh penggunaan Lembar Kerja Siswa (LKS) berbasis Inkuiri Terbimbing terhadap Keterampilan Proses Sains (KPS) siswa. Desain penelitian pretes-postes kelompok tak ekuivalen. Sampel penelitian kelas VII3 dan VII4 SMPN 1 Pagelaran, dipilih secara Purposive Sampling. Data kuantitatif diperoleh dari nilai rata-rata tes yang dianalisis menggunakan uji-t dan uji-U. Data kualitatif berupa data observasi KPS dan angket tanggapan siswa yang dianalisis secara deskriptif. Hasil penelitian menunjukkan rata-rata N-gain kelas eksperimen lebih tinggi (69,99) berbeda signifikan dengan kelas kontrol (49,69). Hasil rata-rata persentase observasi KPS memiliki kriteria tinggi (79,16%) dan sebagian besar siswa memberikan tanggapan positif terhadap penggunaan LKS berbasis Inkuiri Terbimbing. Dengan demikian penggunaan LKS berbasis inkuiri terbimbing dapat meningkatkan keterampilan proses sains.Kata kunci : interaksi antar makhluk hidup, keterampilan proses sains, LKS berbasis inkuiri terbimbing
The Plants Extract Toxicity Againts Achatina fulica (Ferussac, 1821) in Nyawai Ficus variegata (Blume) Fajar Lestari; Beny Rahmanto
Jurnal Wasian Vol 7, No 1 (2020): Jurnal Wasian
Publisher : Balai Penerapan Standar Instrumen Lingkungan Hidup dan Kehutanan (BPPLHK)Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jwas.v7i1.5204

Abstract

One of the problems in developing Nyawai plants is the attack of snail pests Achatina fulica (Ferussac, 1821) at seedling level of the plants. Plant damage caused by these pests is quite large and causes seedling death. One of the control efforts that can be done is utilizing biomaterials which have molluscicidal properties (can kill mollusks). This study aimed to determine the toxicity of some extracts of biomaterial to control Achatina fulica (Ferussac, 1821) pests. The research was conducted on a laboratory scale. The study used a factorial random design with 3 replications. The treatment consisted of four biomaterials namely sembung (Blumea balsamifera), gadung (Discorea hispida), tuba (Derris eliptica and betel nut (Areca catechu) with each concentration of 10.25.50 g/l. Each concentration used 4 snails as a test sample. The parameters observed were snail mortality, and Lethal Concentration (LC50 and LC95). The results showed that the gadung tuber extract had the highest toxicity as indicated by mortality of 75 % and the lowest LC95 value of 80.63 g/l. While the lowest toxicity is betel nut with mortality of 49.75 % and the highest LC95 value is 567.75 g/l. The Toxicity of tuba, pinang, and sembung are highest on 50 g/l concentration, excepted the gadung extract. In gadung extract, the highest toxicity was obtained on 10 g/l concentration. However, the application was consideration to the attack intensity of Achatina fulica (Ferussac, 1821) because the toxicity effect of biomaterial pesticide was slower than chemical molluscicide.Keywords: Achatina fulica (Ferussac, 1821), biomaterial, concentration, toxicity 
Analisis Implementasi Gerakan Literasi Sekolah SMA Wahidiyah Kediri Tahun Pelajaran 2018/2019 fajar lestari; Desi Gita Andriani; Eka Sri Indrayany
Jurnal Pendidikan : Riset dan Konseptual Vol 3 No 1 (2019): Volume 3, Nomor 1, Januari 2019
Publisher : Lembaga Penelitian dan Pengabdian Universitas Nahdlatul Ulama Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (552.98 KB) | DOI: 10.28926/riset_konseptual.v3i1.92

Abstract

Literasi informasi merupakan hal penting dalam kemajuan ilmu pengetahuan dan teknologi, namun kemampuan membaca di Indonesia masih rendah pada siswa tingkat menengah. Usaha pemerintah dalam meningkatkan kemampuan literasi informasi adalah Gerakan Literasi Sekolah (GLS). Penelitian ini bertujuan mendeskripsikan implementasi GLS di SMA Wahidiyah Kediri serta mengetahui faktor pendukung dan penghambatnya. Penelitian ini termasuk penelitian deskriptif kualitatif. Hasil penelitian yaitu implementasi GLS di SMA Wahidiyah Kediri termasuk dalam tahap pembiasaan dengan faktor pendukung berupa kerja sama pimpinan sekolah dalam menciptakan suasana sekolah yang mendukung terlaksananya GLS, sedangkan faktor penghambat berupa perpustakaan kurang luas dan larangan pojok literasi di ruang kelas.
PENENTUAN NILAI BOD DAN COD LIMBAH CAIR INLET LABORATORIUM PENGUJIAN FISIS POLITEKNIK ATK YOGYAKARTA Eko Nuraini; Tantri Fauziah; Fajar Lestari
Integrated Lab Journal Vol. 7 No. 2 (2019): Integrated Lab Journal
Publisher : UIN Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (216.356 KB) | DOI: 10.14421/ilj.2019.20197206

Abstract

Kegiatan di laboratorium salah satunya menghasilkan hasil samping berupa limbah baik itu padatan, cairan ataupun bentuk gas. Laboratorium pengujian fisis dalam kegiatannya menghasilkan limbah tidak hanya betuk padatan akan tetapi menghasilkan limbah cair dari hasil pengujian Shrinkage Leather dan Pengujian Kemasakan Kulit. Selama ini limbah hasil praktikum langsung dibuang di tempat bak pencucian sehingga dengan berjalannya waktu akan mencemari lingkungan sekitar. Sebagai pranata laboratorium yang bekerja di laboratorium bertugas untuk mengolah sebelum limbah di buang, akan tetapi sebelum dilakukan pengolahan limbah inlet perlu diketahui karakteristiknya sehingga nantinya bisa diketahui metode yang akan digunakan untuk mengolah. Penulis memilih parameter BOD dan COD  digunakan untuk pengujian sampel limbah inlet hal ini karena pengujian BOD dan COD bisa digunakan sebagai penduga adanya pencemaran dalam limbah walaupun bukan sebagai penentu. Metode yang digunakan  menggunakan yodometri untuk BOD dan reflux untuk pengujian COD. Hasil pengujian mendapatkan 64,36 mg/L dan 195127,2 mg/L. Dengan melihat nilai hasil uji yang masih tinggi sebaiknya limbah inlet diolah secara kimia sebelum dibuang.
The Plants Extract Toxicity Againts Achatina fulica (Ferussac, 1821) in Nyawai Ficus variegata (Blume) Fajar Lestari; Beny Rahmanto
Jurnal Wasian Vol 7, No 1 (2020): Jurnal Wasian
Publisher : Balai Penerapan Standar Instrumen Lingkungan Hidup dan Kehutanan (BPPLHK)Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (437.419 KB) | DOI: 10.20886/jwas.v7i1.5204

Abstract

One of the problems in developing Nyawai plants is the attack of snail pests Achatina fulica (Ferussac, 1821) at seedling level of the plants. Plant damage caused by these pests is quite large and causes seedling death. One of the control efforts that can be done is utilizing biomaterials which have molluscicidal properties (can kill mollusks). This study aimed to determine the toxicity of some extracts of biomaterial to control Achatina fulica (Ferussac, 1821) pests. The research was conducted on a laboratory scale. The study used a factorial random design with 3 replications. The treatment consisted of four biomaterials namely sembung (Blumea balsamifera), gadung (Discorea hispida), tuba (Derris eliptica and betel nut (Areca catechu) with each concentration of 10.25.50 g/l. Each concentration used 4 snails as a test sample. The parameters observed were snail mortality, and Lethal Concentration (LC50 and LC95). The results showed that the gadung tuber extract had the highest toxicity as indicated by mortality of 75 % and the lowest LC95 value of 80.63 g/l. While the lowest toxicity is betel nut with mortality of 49.75 % and the highest LC95 value is 567.75 g/l. The Toxicity of tuba, pinang, and sembung are highest on 50 g/l concentration, excepted the gadung extract. In gadung extract, the highest toxicity was obtained on 10 g/l concentration. However, the application was consideration to the attack intensity of Achatina fulica (Ferussac, 1821) because the toxicity effect of biomaterial pesticide was slower than chemical molluscicide.Keywords: Achatina fulica (Ferussac, 1821), biomaterial, concentration, toxicity 
Pengaruh Pembelajaran Kooperatif Berbantuan Google Classroom Terhadap Kemampuan Pemahaman Konsep Mahasiswa Fajar Lestari; Desi Gita Andriani; Eka Sri Indrayany
SUPERMAT : Jurnal Pendidikan Matematika Vol 6 No 2 (2022): Supermat : Jurnal Pendidikan Matematika
Publisher : Program Studi Pendidikan Matematika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33627/sm.v6i2.932

Abstract

Dampak dari pandemi COVID-19 pada bidang pendidikan beberapa tahun belakangan ini cukup besar dimana pembelajaran sebagian besar dilaksanakan secara daring sehingga siswa sudah terbiasa menggunakan teknologi informasi dalam pembelajaran. Salah satu teknologi informasi yang sudah familiar digunakan oleh mahasiwa selama masa SMA adalah google classroom. Tujuan penelitian ini adalah untuk mengetahui pengaruh penggunaan model pembelajaran kooperatif berbantuan google classroom terhadap kemampuan pemahaman konsep mahasiswa tingkat satu semester ganjil tahun ajaran 2022/2023 fakultas teknik Universitas Wahidiyah pada mata kuliah kalkulus 1. Metode penelitian yang digunakan adalah kuantitatif dengan metode eksperimen dengan one-group pretest-posttest design. Teknik pengambilan sampel menggunakan purposive sampling. Teknik analisis data menggunakan paired sample t-test dilanjutkan dengan analisis N-Gain yang dalam perhitungannya menggunakan progam SPSS v.26 for Windows. Hasil uji paired sample t-test menunjukkan bahwa nilai signifikan (Sig.=0,000) kurang dari 0,05 maka H0 ditolak artinya ada pengaruh penggunaan model pembelajaran kooperatif berbantuan google classroom terhadap kemampuan pemahaman konsep mahasiswa. Selanjutnya hasil uji N-Gain diketahui bahwa mean atau rata-rata persentase N-Gain adalah 43,43% artinya efektifitas model pembelajaran kooperatif berbantuan google classroom terhadap kemampuan pemahaman konsep mahasiswa adalah kurang efektif. Simpulan penelitian ini yaitu terdapat pengaruh penggunaan model pembelajaran kooperatif berbantuan google classroom terhadap kemampuan pemahaman konsep mahasiswa namun kurang efektif.
Characterization of Ethanol Extract from Agarwood (Aquilaria microcarpa Baill.) Leaf Rahmanto, Beny; Halwany, Wawan; Lestari, Fajar; Anwar, Khoerul; Triyasmono, Liling; Rizki, Muhammad Ikhwan; Turjaman, Maman
Jurnal Jamu Indonesia Vol. 3 No. 2 (2018): Jurnal Jamu Indonesia
Publisher : Tropical Biopharmaca Research Center, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jji.v3i2.56

Abstract

The aim of this research is to determine the specific and non-specific parameter from ethanolic extract of A. microcarpa. Specific parameters such as the organoleptic properties, content of water and ethanol soluble compound, and chhromatogram profile of the extract. In contrast, the non-specific parameter includes drying losses, ash levels, microbiological contamination levels, and heavy metal contamination levels. The results showed that the organoleptic properties of ethanolic extract of A. microcarpa was thick, blackish brown color, bitter taste and have distinctive odor. The average content of water-soluble compounds of 66.93%, ethanol-soluble of 47.97%, and chromatogram profile with Rf 0.636. The non-specific parameters results were drying losses of 5.50%, total ash content of 3.73%, acid-insoluble ash of 2.13%, microbial contamination testing results of 1.2x102-5.5x103 colonies/g, and total mold/ yeast contaminants of 10-100 colonies/g. Heavy metal contamination Pb levels and Cd levels were 5.47 mg/kg and 0.19 mg/kg respectively. These studies suggested that the observed specific and non-specific parameters may be helpful for establishing pharmacopoeia standards of A. microcarpa and to ensure uniformity of extract effect.
SIFAT FISIKOKIMIA DAN KANDUNGAN MIKRONUTRIEN PADA MADU KELULUT (Heterotrigona itama) DENGAN WARNA BERBEDA Safinah S. Hakim; Siswadi; Reni S. Wahyuningtyas; Beny Rahmanto; Wawan Halwany; Fajar Lestari
Jurnal Penelitian Hasil Hutan Vol. 39 No. 1 (2021): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2021.39.1.1-12

Abstract

Honey is one of the non-timber forest products, which has variety of benefits, among others health supplement andboosting stamina. One of the honey bee is kelulut (Heterotrigona itama). Consumers have certain preferences forkelulut honey based on colour appearance. This research was aimed to determine the colour of honey in relation with thequality of honey. Physicochemical and proximate analyses were carried out during this research. The results showed thatkelulut honey with dark color had higher reducing sugar content compared to light-colored honey. In addition, honey withdifferent colors has different micronutrients and benefits. The results of this study are expected to provide informationto consumers in making decisions when purchasing kelulut honey.
Co-Authors Arwin Achmad Beny Rahmanto Beny Rahmanto Desi Gita Andriani Desi Gita Andriani Edi Suryanto Eka Sri Indrayany Eko Nuraini Indrayany, Eka Sri Khoerul Anwar Liling Triyasmono Maman Turjaman Muhammad Ikhwan Rizki Nanndo Yannuansa, Nanndo Rahmanto, Beny Reni S. Wahyuningtyas Rini Rita T Marpaung Safa’udin, Muhamad Safa’udin, Muhammad Safinah S. Hakim Siswadi Tantri Fauziah Wawan Halwany Wawan Halwany, Wawan Wida Darwiati