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STUDI KOMPARASI HASIL BELAJAR BIOLOGI MENGGUNAKAN MODEL PEMBELAJARAN KOOPERATIF ANTARA TIPE STAD DAN TGT BERDASARKAN KARAKERISTIK PESERTA DIDIK DI SMA NEGERI 1 SENTANI Andaningsih, Wresni; Wilujeng, Sri
Jurnal Ilmu Pendidikan Indonesia Vol 3, No 2 (2015): Jurnal Ilmu Pendidikan Indonesia
Publisher : Magister Pendidikan IPA, UNCEN

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Abstract

This research aims is to know difference between real students learning of metabolism by using STAD type learning and TGT type learning model based on interest and character of students learning. To achieve this aim it will be implied STAD type learning model and TGT type learning model based on interest and character of student learning to student of SMA Negeri 1 Sentani, grade XI IPA (Science) consists of one hundred students are as objects of research. They are result metabolisme learning compared by using both STAD type and TGT type based on interest and character o students learning. This data result is metabolisme learning to be collected by using achievement test. While is about interest and being active of students learning gotten from interest questionnaire of using both STAD type and TGT type and students learning observation the the research data collection is analyzed by using Independent sample test and Technique Correlation Product Moment Person. This research shows: 1). Implementation of TGT type Learning model more objective to show the result of learning process than by using STAD type learning model. It is implied in both active class and inactive class. Based on the result of the analysis of value average TGT learning in the first test on active class X ̅ TGT = 76,04 > X ̅ STAD = 59,19. So did second test X ̅ TGT = 79,87 > X ̅ STAD = 66,50. As well as for the inactive class value average on the first test X ̅ TGT = 71,19 > X ̅ STAD = 54,25 and also the second test X ̅ TGT = 72,33 > X ̅ STAD = 63,93. 2). There is no correlation between learning interest with leaning result of student in both active class and inactive class. 3). There is no correlation between students learning being active with learning result in both active class and inactive class. Key words: STAD, TGT, Learning Result, Biology, Characteristic
Studi Awal Kultur Biji Sowang (Xanthostemon novaguineense Valet.) Secara In-Vitro Sri Wilujeng; Verena Agustini
Jurnal Biodjati Vol 2, No 1 (2017): May
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v2i1.1288

Abstract

Sowang (Xanthostemon novoguineense Valet.) diidentifikasi sebagai spesies endemik Papua. X. novaguineense merupakan jenis tumbuhan New Guinea bagian barat dengan data ilmiah yang sangat terbatas. Di alam, jumlah tegakan dan habitat sowang saat ini telah menyusut karena eksploitasi hasil hutan dan konversi lahan. Sementara eksploitasi kayu sowang dan konversi habitat sowang tetap berlangsung, usaha meregenerasi belum tampak di masyarakat, kemampuan regenerasi sowang secara alami juga sangat rendah. Hal ini merupakan ancaman kepunahan bagi populasi sowang. Penelitian ini dilakukan untuk mengidentifikasi media in-vitro yang sesuai bagi perkecambahan biji dan pertumbuhan tunas sowang. Percobaan dirancang dengan  memperlakukan dua jenis media perkecambahan yakni VW yang dimodifikasi dan MS dengan zpt, 20 ulangan, setiap satu unit percobaan berisi 30 benih sowang yang ditanam di media, dilakukan di laboratorium kultur jaringan FMIPA Universitas Cenderawasih Jayapura. Variabel penelitian adalah hari muncul tunas, persen perkecambahan, penampilan tunas dan tinggi tunas pada usia tunas 60 hari. Data dianalisis dengan independent sample t test. Hasil penelitian menunjukkan tidak terdapat signifikansi pada variabel-variabel hari muncul tunas, persen perkecambahan, penampilan tunas dan tinggi tunas antara perlakuan media VW yang dimodifikasi dan MS dengan zpt. Rata-rata hari muncul tunas adalah 5.50 hari dan 5.55 hari, rata-rata persen perkecambahan adalah 63.55% dan 61.40%, rata-rata skor penampilan tunas adalah 2.85 dan 2.75 serta rata-rata panjang tunas adalah 2.84 cm dan 2.67 cm. 
Isolasi dan Karakterisasi Jamur Indigenous dan Potensinya untuk Biodelignifikasi Ina Darliana; Sri Wilujeng
Jurnal Agrotek Indonesia (Indonesian Journal of Agrotech) Vol 5 No 2 (2020): Jurnal Agrotek Indonesia (Indonesian Journal of Agrotech)
Publisher : Faculty of Agriculture University of Singaperbangsa Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33661/jai.v5i2.4341

Abstract

Biodelignification is a preliminary process of removing lignin from lignocellulosic materials using microorganisms. In the textile industry, the enzymes produced by fungi are used to degrade synthetic dyes in waste, soil bioremediation, biodegradation of phenol pollutants in the environment, and pulp and paper processing. (Mosier. Et al., 2005). Indigenous fungi are fungi that have the ability to degrade organic compounds and make them a source of nutrients for metabolism and life (Raju, et al., 2007). Fungi were chosen as one of the organisms for Biodelignification because they are able to degrade toxic components by means of transformation, namely changing the hazardous chemicals that are formed in the soil (Sullia, 2000). Fungi can survive in various environments on different media including soil. Wastes with various organic compounds are difficult to degrade due to their polymer shape, and only a small amount can be hydrolyzed due to their composite and complex structure. Some indigenous fungi that live in the soil have the ability to break down various organic compounds including lignin and cellulose. This fungus produces ligninase, which is an enzyme that can break down lignin and cellulase compounds (Yang et al., 2005, Guang et al., 2006). This research was conducted to obtain fungal isolates that have the ability to degrade lignin. Isolation is taken from soil sources contaminated with textile waste, isolated using lignin selective media with tannic acid as the sole C source. The method used in this research is descriptive exploration method in field sampling and experimental method for laboratory observations, namely the isolation and culture of fungi by dilution method, then identification of fungal genus is carried out by the Moist Chamber method, while the properties and morphology are described descriptively based on literature guide Introduction To Food-Borne Fungi (Samson et al., 1995). The results obtained 11 isolates of fungi that have ligninolytic abilities. Genus Aspergillus, sp. has the highest ligninolytic ability by producing a clear zone diameter of 3.45 cm on the 3rd day.
Efektifitas PGPR (Plant Growth Promoting Rhizobacteria) terhadap Pertumbuhan Anakan Kayu Putih (Malaleuca cajuputi Powell) Sri Wilujeng; Rian Susila; Metta Wangi; Ina Darlina; Raizal Fahmi Solihat
Jurnal Agrotek Indonesia (Indonesian Journal of Agrotech) Vol 6 No 2 (2021): Jurnal Agrotek Indonesia (Indonesian Journal of Agrotech)
Publisher : Faculty of Agriculture University of Singaperbangsa Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33661/jai.v6i2.5149

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Good quality cajuput seedlings procured from generative propagation are essential, since the mature trees will be functioning as oil production trees, stock (parent) plant for stem cuttings, and major players on land conservations.In addition to superior genetic factors, the so-called Plant Growth Promoting Rhizobacteria (PGPR) treatment with the optimum concentration would help in enhancing the quality of generative seedlings. Therefore, systematic experiment is needed to determine the effective concentration of PGPR required for preparing high quality cajuput seedlings. This study used Completely Randomized Design (CRD) experiment with randomly assigned concentration of PGPR on cajuput juvenile as the primary factor. The height growth and root length growth of the juvinile for given period of time were measured to evaluate the effect of PGPR treatment. There were monotonically improvement on juvinile’s height and root length growth after PGPR treatment, showing a positive correlation between the height and root length. During the experiment, the highest PGPR concentration of 90mL/L was discovered to be the most effective. Nevertheless, they still had not reached the saturation point yet, therefore, more study is needed to determine the most optimum PGPR concentration to produce the exemplary cajuput seedlings.
Ecological characteristics of gandaria (Bouea macrophylla Griff) at dungus iwul nature reserve and yan lapa nature reserve Bogor regency Rian Susila; Reni Srimulyaningsih; Sri Wilujeng; Raizal Fahmi
Bioscience Vol 6, No 1 (2022): Biology
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/0202261111995-0-00

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Gandaria (Bouea macrophylla Griff) is the identity flora of West Java Province. Naturally, the gandaria habitat in West Java is found only in the Yan Lapa Nature Reserve (CAYL) and Dungus Iwul Nature Reserve (CADI). In the ecosystem of CADI, and CAYL the position of gandaria in the community shows a low level of dominance. The presence of invasive species in CAYL and CADI is feared will threaten the stability of ecosystems in the region in the future including the presence of native flora. This study aims to study the level of tolerance and adaptation of gandaria in nature by knowing the pattern of individual spread in the gandaria population and the type of gandaria association with other species in various environmental. This is interesting to study because of the limited efforts of species conservation and genetic conservation of gandaria, while the condition of the natural population is increasingly threatened. Individual distribution patterns in gandaria populations in CADI and CAYL are random and clustered. Gandaria at Dungus Iwul Nature Reserve and Yan Lapa Nature Reserve are positively associated with iwul, whereas the Hawuan is negatively associated. Gandaria is not associated with asam keranji, manii, kokopian, leungsir, putat, and teureup. However, gandaria is not with menteng monyet dan kitulang in CADI while in CAYL have positive position.Gandaria (Bouea macrophylla Griff) merupakan flora identitas Provinsi Jawa Barat. Secara alami, habitat gandaria di Jawa Barat hanya terdapat di Cagar Alam Yan Lapa (CAYL) dan Cagar Alam Dungus Iwul (CADI). Dalam ekosistem CADI, dan CAYL posisi gandaria dalam komunitas menunjukkan tingkat dominasi yang rendah. Kehadiran spesies invasif di CAYL dan CADI dikhawatirkan akan mengancam stabilitas ekosistem di kawasan tersebut di masa mendatang termasuk keberadaan flora asli. Penelitian ini bertujuan untuk mempelajari tingkat toleransi dan adaptasi gandaria di alam dengan mengetahui pola penyebaran individu pada populasi gandaria dan jenis asosiasi gandaria dengan spesies lain di berbagai lingkungan. Hal ini menarik untuk dikaji karena terbatasnya upaya konservasi spesies dan konservasi genetik gandaria, sedangkan kondisi populasi alaminya semakin terancam. Pola sebaran individu pada populasi gandaria di CADI dan CAYL bersifat acak dan mengelompok. Gandaria di Cagar Alam Dungus Iwul dan Cagar Alam Yan Lapa berasosiasi positif dengan iwul, sedangkan Hawuan berasosiasi negatif. Gandaria tidak diasosiasikan dengan asam keranji, manii, kokopian, leungsir, putat, dan teureup. Namun gandaria tidak dengan menteng monyet dan kitulang di CADI sedangkan di CAYL memiliki posisi positif.
PERTUMBUHAN ANAKAN KOPI (Coffea arabica Lin.) BERBASIS SISTEM AGROFORESTRI DI HUTAN RAKYAT CIMARIAS SUMEDANG Sri Wilujeng; Ina Darliana; Raizal Fahmi Solihat; Tatang Rohmat
Jurnal Hutan Tropis Vol 9, No 1 (2021): Jurnal Hutan Tropis Volume 9 No 1 Edisi Maret 2021
Publisher : Lambung Mangkurat University-Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jht.v9i1.10489

Abstract

In the recent years, there is a significant increase on economic value of coffee as trade commodity. On that note, the most frequently used cultivation practices for coffee in Indonesia is coffee agroforestry system in private forest. However, there are still some constraints in the system development due to the traditional farmer limited knowledge of coffee cultivation practices. In this study we conducted preliminary observations on the coffee cultivation practices used by the traditional farmers to determine the steps needed to improve the coffee quality and sustainability. We study the effect of plant-spacing and shading on the growth of juvenile plant of coffee (Coffea arabica Lin.) from Sigarar utang variety. The observation was carried out in private forest of Cimarias village Sumedang district for 1 (one) month. We used the combination of 2,5m x 2,5m and 3m x 3m for plant-spacing with kayu afrika (Meisopsis eminii Engl.) as shade and without shade. This experiment used Completely Randomized Design experiment with 10 replication for each treatment, with juvenile height (cm), stem diameter (mm), and the quantity of productive primary branches as data. Then data were analyzed using Anova, Duncan’s Multiple Range Test (DMRT) 0,05, and Pearson Correlation. From the result, the best growth of juvenile plant of coffee tree was showed on 3m x 3m spacing with shade. However, the growth shown has not reached the potential of the coffee from Sigarar utang variety as supposed to in accordance with the environmental condition of the crop. This analysis also supports the prediction of low-productivity because there is positive correlation between juvenile height and the quantity of primary branches, and between stem diameter and the quantity of primary branches.
Training And Certification of Competency Assessment Of Forest Plant Seed Quality Lora septrianda putri; Sri Wilujeng; Raizal Fahmi; Fahriza Luth; Ishak Tan
ABDIMAS: Jurnal Pengabdian Masyarakat Vol. 5 No. 2 (2022): ABDIMAS UMTAS: Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM Universitas Muhammadiyah Tasikmalaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (621.75 KB) | DOI: 10.35568/abdimas.v5i2.2449

Abstract

Forest plant seeds can be in the form of generative or vegetative used to breed forest plants. Sources of seeds come from stands inside and outside the forest area to produce quality seeds. The availability of quality forest plant seeds is still limited. The Faculty of Forestry, Winaya Mukti University, is interested in providing community service to partners in the form of training and certification of expertise in determining the quality of forest plant seeds to prepare group members with a nationally recognized BNSP certificate. This community service (PKM) has three partner groups: the Jingkang Village group, Tanjungmedar District, Sumedang Regency, Loa Village Group, Paseh District, and Bandung Regency Forest Village Community Institution (LMDH) Cempaka Bentang and Laksana Village, Ibun District, Kabupaten Bandung. Bandung called the Forest Farmers Group (KTH) Kamojang. The method begins with training on seed handling and quality inspection of forest plant seeds which includes how to take seed samples, analyze seed purity, determine the weight of a thousand grains, determine water content, and test germination. Skill competency certification activities refer to the International Seed Testing Association (ISTA). The seeds used are Sengon, Gmelina, Suren, and Trembesi seeds. All partner groups welcome this activity and hope that this activity can continue to improve the knowledge and skills of participants in supporting superior human resources and forestry professionals to support the community's economy.
Studi Awal Regenerasi Sowang (Xanthostemon novaguineense Valet.) Sri Wilujeng; Verena Agustini
Jurnal Biologi Papua Vol 9, No 1 (2017)
Publisher : Jurusan Biologi FMIPA Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (345.816 KB) | DOI: 10.31957/jbp.106

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Sowang (Xanthostemon novaguineense Valet.) is an endemic plant of Cycloops and strictly distributed. Since years, the population of the plants is threatened by human activities through land conversion, forest burning and logging. There are only few seedling grow in Cycloops naturally. Sowang wood is known as a good quality, because of its inherent hardness and high density. Scienfific information about this species is remain unclear. Regarding the plant regeneration, it is also not enough information so far. The study was conducted at three places around Cycloops areas namely Waena, Doyo Baru (sowing habitat) dan Wambena (no sowang areas) of Jayapura Regency, Papua and also greenhouse of FMIPA Cenderawasih University. The experimental units were set up in a completely randomized design with 3 treatments. Each experiment was carried out in three replicated and each replicate includes 100 seeds. Data were analyzed by analysis of variance (ANOVA), followed by LSD α=0.05. The result showed that there is no relation between geographical distribution of Sowang at Cycloops and the phisical and chemical soil. All type of soil used in this study was good as media of the seed germination. Regarding the ratio of the sapling population, the germination is still low only 18%, the seedling only survive for 38 days after sowing. Key words: Cycloops, regeneration, Sowang, Papua.
Implementasi Sistem Agrosilvopastura untuk Peningkatan Produktivitas dan Kesejahteraan Peternak Lokal Raizal Fahmi; Sri Wilujeng; Rian Susila; Fahriza Luth; Prasetyo Widodo
Abdi Wiralodra : Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 2 (2023): Abdi Wiralodra
Publisher : universitas wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/abdi.v5i2.125

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Agrosilvopastura merupakan sebuah sistem agroforestri yang menggabungkan pertanian, peternakan, dan keberlanjutan lingkungan. Sistem ini memberikan manfaat ekonomi, sosial, dan lingkungan yang signifikan. Dalam konteks pengabdian masyarakat, yang dilaksanakan oleh Fakultas kehutanan Unwim yang bekerjasama dengan Yayasan Rimbawan Indonesia (YRI) megimplementasikan sistem agrosilvopastura untuk meningkatkan produktivitas peternakan lokal dan kesejahteraan peternak di Desa Jingkang, Kecamatan Tanjungmedar, Kabupaten Sumedang. Tujuan pengabdian kepada masyarakat untuk mengenalkan konsep dan manfaat sistem agrosilvopastura kepada peternak lokal, membantu peternak dalam menerapkan sistem agrosilvopastura di lahan mereka, meningkatkan produktivitas dan pendapatan peternak melalui implementasi sistem agrosilvopastura, serta meningkatkan kesadaran tentang pentingnya konservasi lingkungan dan keberlanjutan pertanian. Kegiatan ini dilaksanakan 2022 – 2023 dengan beberapa tahap, yaitu identifikasi dan seleksi peternak lokal, pelatihan dan pendampingan, penanaman pohon dan desain agrosilvopastura, pengelolaan dan pemeliharaan sistem agrosilvopastura, dan evaluasi dan monitoring. Hasil kegiatan ini adalah masyarakat Desa Jingkang memiliki pengetahuan, kesadaran dan keterampilan tentang agrosilvopastura yang dapat meningkatkan produktivitas dan kesejahteraan peternak lokal. Kata kunci: agrosilvopastura, peternak lokal, keberlanjutan lingkungan
Estimasi Cadangan Karbon Dan Serapan Karbon Di Taman Maluku Kota Bandung Ina Darlina; Sri Wilujeng; Fajar Nurmajid
Paspalum: Jurnal Ilmiah Pertanian Vol 11, No 1 (2023)
Publisher : Lembaga Penelitian dan Pengabdian Universitas Winaya Mukti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35138/paspalum.v11i1.556

Abstract

The availability of green open space (RTH) in urban areas is very important to mitigate the effects of global warming, especially in reducing CO2 gas levels as a result of human activities. Vegetation with chlorophyll, namely the trees in green open spaces try to absorb carbon dioxide (CO2) using sunlight, water and soil from the atmosphere through the process of photosynthesis. One form of stored photosynthetic results is biomass which makes this vegetation grow bigger and taller . In the carbon cycle and biogeochemical cycle the biomass of green open space vegetation plays an important role, all parts starting from the stems, leaves and roots store biomass. This study aims to determine the estimation of carbon stocks and absorption in Taman Maluku, Bandung City. The method used in this study is a non-destructive method (without harvesting). The research was conducted by collecting tree data and the wet weight of the understorey, then calculating the biomass to obtain estimates of carbon stocks and carbon absorption. From the research it was found that the Maluku Park in Bandung City with an area of 23,633 m2 has carbon reserves of around 179.941 tons from trees and 3.11 tons from undergrowth. Meanwhile, the estimated carbon uptake is 731,422 tonnes by trees and 11,409 tonnes by undergrowth. The high carbon stock can be influenced by several factors including: vegetation density, environment, especially sunlight, volume, specific gravity, wood constituents, water content, and silvicultural measures.
Co-Authors Achmad Ruchlihadiana Tisnasendjaja Agus Sumanto Andari, Ruri Andi Nu Graha Andrian, Viki Anggri Sartika Wiguna Anjar, Arien Asna, Asna Azhari, Lusi Ayu Bahri, Subur Choirunnisa, Nina Dharmawan, Gilang diana, wulan Dianawati Suryaningtyas Dimas Hadi Prayoga Dwi Wahyuni Emma Yuliani Erna Agustina Eva Prastiwi, Yurika Fahriza Luth Fajar Nurmajid Febri Yusdianatari, Wanda Ferdiani, Rosita Dwi Ferdiani, Rosita Dwi Ferdiani Fernanda, Alvina Arti Fikri Fikri Hari Lugis Purwanto Harianto, Wahyudi Hena Dian Ayu Hengki Riawan Putra, Muchamad Heri Santoso Heri Widodo Hidayat, Candra Wahyu Imaniar, Dimas Ina Darliana Ina Darliana Ina Darlina Ina Darlina Irawan, Aprita Irianto, Dicky Fahmi Ishak Tan Jatu Permatasari, Safrieta Jumiati, Silvianingsih K, Mahardika Putri Kaonang, Mahardika Putri Lalo, Anggie Marice Bili Lora septrianda putri Ludi Wishnu Wardana Lukmansyah, Lucky Manurung, Nadila Anugraini Br Maulana Abdul Ghani, Dadang Metta Wangi Moch. Sholichin Muliana, Erna Mulyawan, Rizka Nosari, Yulia Nur Rohimah, Wahyu Oktaviyani, Bella Pahlevi Hentika, Niko Panjaitan, Maya Sari Prasetyo Widodo Puspitosari Suharso, Arien Anjar Putra, M Hengki Riawan Rachman, Ziana Maulidiyah Raizal Fahmi Raizal Fahmi Raizal Fahmi Raizal Fahmi Solihat Razi, Ar Rian Susila Rizki, Robbi Adi Rofuddin, Rofuddin Roufuddin, Roufuddin Safari, Syahrul Sedyastuti, Kristina Sembiring, Rinawati Setiyowati, Supami Wahyu Sibarani, Vanni Intan Medika Siti Khatijah Srimulyaningsih, Reni Susila, Rian Tan, Ishak Tatang Rohmat Utama , Dana Marsetiya Verena Agustini Verena Agustini Vitasari, Leni Wahyudiono, Andhika Widia Novita Sari Widoyanti, Virki Widoyanti, Virki Putri Wresni Andaningsih, Wresni Wulandari, Juwita Yobel, Sosilo Yobel, Sosilo Putri Yobel, Susilo Yulisda, Desvina