Background: The teak-based agroforestry system in Gemawang Wonogiri Village has the potential for various types of constituent tree vegetation that can act as carbon stock stores. This research was conducted considering the limited research on teak-based agroforestry systems, especially in the Wonogiri area. This study aims to provide information on tree vegetation's composition, structure, and diversity and determine the potential carbon stocks of tree vegetation standing in teak-based agroforestry systems. Methods: The research method used a 20 x 20 m2 plot of 1 ha, and the plots were placed using a purposive sampling approach. Results: Found nine species of tree vegetation from 8 families with 271 individuals ha-1. The species of teak tree (Tectona grandis) has the highest INP of 81.56 %. The Diversity Index is moderate, with a value of 1.79, and the Dominance Index is low at 0.21. The amount of carbon stored in tree stands is 45.71 MgC ha-1. Conclusions: This research can give information and points of reference about the structure and composition of stands in agroforestry systems and their potential to store carbon stocks. The research data is useful for the community as a source of information regarding the condition of the agroforestry area in Gemawang Village so that they can make optimal use of the area by developing suitable vegetation.
背景：Gemawang Wonogiri村以柚木为基础的农林系统具有各种类型的组成树木植被的潜力，这些植被可以作为碳储存库。本研究是考虑到对柚木农林系统的有限研究，特别是在沃诺吉里地区。本研究旨在提供有关树木植被组成、结构和多样性的信息，并确定柚木农林系统中树木植被的潜在碳储量。方法：研究方法使用一块面积为1公顷的20 x 20平方米的地块，并使用有目的的抽样方法放置地块。结果：共发现8科9种植被，271个ha-1个体。柚木的INP最高，达81.56%。多样性指数中等，为1.79，优势指数较低，为0.21。林分中的碳储量为45.71 MgC ha-1。结论：本研究可以为农林系统林分的结构和组成及其储存碳储量的潜力提供信息和参考。研究数据对社区来说是有用的，因为它是关于Gemawang村农林区状况的信息来源，因此他们可以通过开发合适的植被来最佳利用该地区。
{"title":"Composition, Structure, and Carbon Stock of Tree in the System: Teak-Based Agroforestry in Gemawang Wonogiri Village","authors":"A. Zahra, Nanda Hasanah, Santhyami","doi":"10.22236/jbes/7111403","DOIUrl":"https://doi.org/10.22236/jbes/7111403","url":null,"abstract":"Background: The teak-based agroforestry system in Gemawang Wonogiri Village has the potential for various types of constituent tree vegetation that can act as carbon stock stores. This research was conducted considering the limited research on teak-based agroforestry systems, especially in the Wonogiri area. This study aims to provide information on tree vegetation's composition, structure, and diversity and determine the potential carbon stocks of tree vegetation standing in teak-based agroforestry systems. Methods: The research method used a 20 x 20 m2 plot of 1 ha, and the plots were placed using a purposive sampling approach. Results: Found nine species of tree vegetation from 8 families with 271 individuals ha-1. The species of teak tree (Tectona grandis) has the highest INP of 81.56 %. The Diversity Index is moderate, with a value of 1.79, and the Dominance Index is low at 0.21. The amount of carbon stored in tree stands is 45.71 MgC ha-1. Conclusions: This research can give information and points of reference about the structure and composition of stands in agroforestry systems and their potential to store carbon stocks. The research data is useful for the community as a source of information regarding the condition of the agroforestry area in Gemawang Village so that they can make optimal use of the area by developing suitable vegetation.","PeriodicalId":33216,"journal":{"name":"Bioeduscience","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49322967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Background: Fierce competition requires graduate students from IKIP PGRI Pontianak to have pedagogical abilities, soft skills, hard skills, and interpersonal skills that can be used in the world of work. The research will aim to develop Bio-entrepreneurship teaching materials based on Creative Problem Solving to train eco-literation skills. Methods: The research method uses research and development intending to produce a new product that refers to the ADDIE development model, which includes five stages, namely, Analysis, Design, Development, Implementation, and Evaluation. The research was carried out in the Biology Education Study Program; before the product was given to experts, researchers tested Bio-entrepreneurship teaching materials based on Creative Problem Solving to train eco-literation skills. Results: The next validation stage will involve material and media experts, and research will involve students taking the Bio-entrepreneurship course in the Biology Education Study Program, which was previously given a pre-test and post-test. The research instruments used are expert validation sheets, product assessments, questionnaires, and eco-literation tests. Data analysis was carried out on the results of expert validation, student responses, and student learning outcomes using SPSS. Bio-entrepreneurship Teaching Materials Based on Creative Problem Solving meet the criteria of validity and practicality based on the results of assessments from media experts and material experts, based on the calculation of N-gains, a value of 61,267 or 61.27% is included in the category of quite effective. Conclusions: Bio-entrepreneurship Teaching Materials Based on Creative Problem Solving meet correct categorizations and are adequate for learning.
{"title":"Bio-entrepreneurship Module: Building Ecoliteracy Skills For Prospective Biology Teachers Through Creative Problem-Solving Learning","authors":"None Nawawi Nawawi, None Rio Wardhani","doi":"10.22236/jbes/7110559","DOIUrl":"https://doi.org/10.22236/jbes/7110559","url":null,"abstract":"Background: Fierce competition requires graduate students from IKIP PGRI Pontianak to have pedagogical abilities, soft skills, hard skills, and interpersonal skills that can be used in the world of work. The research will aim to develop Bio-entrepreneurship teaching materials based on Creative Problem Solving to train eco-literation skills. Methods: The research method uses research and development intending to produce a new product that refers to the ADDIE development model, which includes five stages, namely, Analysis, Design, Development, Implementation, and Evaluation. The research was carried out in the Biology Education Study Program; before the product was given to experts, researchers tested Bio-entrepreneurship teaching materials based on Creative Problem Solving to train eco-literation skills. Results: The next validation stage will involve material and media experts, and research will involve students taking the Bio-entrepreneurship course in the Biology Education Study Program, which was previously given a pre-test and post-test. The research instruments used are expert validation sheets, product assessments, questionnaires, and eco-literation tests. Data analysis was carried out on the results of expert validation, student responses, and student learning outcomes using SPSS. Bio-entrepreneurship Teaching Materials Based on Creative Problem Solving meet the criteria of validity and practicality based on the results of assessments from media experts and material experts, based on the calculation of N-gains, a value of 61,267 or 61.27% is included in the category of quite effective. Conclusions: Bio-entrepreneurship Teaching Materials Based on Creative Problem Solving meet correct categorizations and are adequate for learning.","PeriodicalId":33216,"journal":{"name":"Bioeduscience","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135756769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Background: Tofu liquid waste tofu contains a low pH of 3 (acidic), because in the manufacturing process there is the addition of a prickly heat, it will cause pollution. One of the efforts to minimize pollution is by doing phytoremediation by combining Pistia stratiotes and Eichornia crassipes. The purpose of this study was to determine the effect of phytoremediation Pistia stratiotes and Eichornia crassipes on changes in pH and plant morphology. Methods: The method used was an experiment with four treatments and three replications by combining 0 g (control) biomass (P0), 75 g Pistia stratiotes and 25 g Eichhornia crassipes (P1), 50 g Pistia stratiotes and 50 g Eichhornia crassipes (P2), and 25 g of Pistia stratiotes and 75 g of Eichhornia crassipes (P3) which will be phytoremediated into four liters of waste with a concentration of 25%. The experimental data were processed by analysis of variance at the 5% level. Results: The results showed that the four treatments were able to increase the pH value of tofu liquid waste for P1 with an average of 6.0 while P0, P2 and P3 had an average pH of 5.7. Conclusions: The morphological structure that showed the best results was P3 with green leaves and stems.
{"title":"Phitoremidiation of Combination Pistia Stratiotes and Eichhornia Crassipes Towards Changes in Waste Liquid Waste Changes and Plant Morphological Structure","authors":"Endah Rita Sulistya Dewi, Nur Kayati, Maria Ulfah","doi":"10.22236/jbes/7111057","DOIUrl":"https://doi.org/10.22236/jbes/7111057","url":null,"abstract":"Background: Tofu liquid waste tofu contains a low pH of 3 (acidic), because in the manufacturing process there is the addition of a prickly heat, it will cause pollution. One of the efforts to minimize pollution is by doing phytoremediation by combining Pistia stratiotes and Eichornia crassipes. The purpose of this study was to determine the effect of phytoremediation Pistia stratiotes and Eichornia crassipes on changes in pH and plant morphology. Methods: The method used was an experiment with four treatments and three replications by combining 0 g (control) biomass (P0), 75 g Pistia stratiotes and 25 g Eichhornia crassipes (P1), 50 g Pistia stratiotes and 50 g Eichhornia crassipes (P2), and 25 g of Pistia stratiotes and 75 g of Eichhornia crassipes (P3) which will be phytoremediated into four liters of waste with a concentration of 25%. The experimental data were processed by analysis of variance at the 5% level. Results: The results showed that the four treatments were able to increase the pH value of tofu liquid waste for P1 with an average of 6.0 while P0, P2 and P3 had an average pH of 5.7. Conclusions: The morphological structure that showed the best results was P3 with green leaves and stems.","PeriodicalId":33216,"journal":{"name":"Bioeduscience","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47588507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Latar Belakang: Latar Belakang: Media pendidikan diartikan sebagai pembawa atau penyalur pesan yang memuat sumber-sumber informasi untuk disampaikan kepada siswa. Agar kualitas lingkungan belajar menjadi baik dan sesuai serta berpengaruh secara signifikan terhadap proses pembelajaran, maka perlu dipilih lingkungan belajar yang mendukung proses pembelajaran. Kemajuan teknologi dan ilmu pengetahuan telah memberikan dampak yang sangat besar terhadap penggunaan media di sekolah. Namun, sebagian guru di sekolah Indonesia masih belum memiliki keterampilan dalam menggunakan teknologi. Agar siswa dapat menerima materi pendidikan yang disampaikan, diperlukan media yang tepat untuk membantu penyampaian materi, khususnya materi ilmiah. Metode: Penelitian ini menggunakan metode deskriptif kualitatif. Instrumen data berupa kuesioner dan daftar wawancara. Kemudian data dianalisis dengan menggunakan teknik analisis data Miles dan Huberman (199). Hasil: Hasil penelitian menunjukkan bahwa hampir 100% siswa memiliki smartphone atau laptop atau tablet sendiri. Sekitar 52% siswa menggunakan smartphone atau laptop atau tablet selama 6-12 jam sehari, yang digunakan untuk belajar (92,9%), bermain (96,9%), mencari informasi (92,1%) dan berkomunikasi (89%). Mata pelajaran Ilmiah dianggap sebagai mata pelajaran yang sulit (62,2%); parah (17,3%) dan sangat parah (13,4%). Kesimpulan: Urgensi penggunaan media pembelajaran audio visual berbasis digital dalam proses pembelajaran materi IPA memiliki kedudukan yang sangat signifikan, bahkan peran media sejajar dengan metode dalam suatu proses belajar.
{"title":"Urgensi Media Pembelajaran Audio Visual Berbasis Digital pada Pembelajaran Ilmu Pengetahuan Alam di Sekolah","authors":"Ade Suryanda, Windi Rosariyantika, Ratna Komala, Eka Putri Azrai","doi":"10.22236/jbes/7110589","DOIUrl":"https://doi.org/10.22236/jbes/7110589","url":null,"abstract":"Latar Belakang: Latar Belakang: Media pendidikan diartikan sebagai pembawa atau penyalur pesan yang memuat sumber-sumber informasi untuk disampaikan kepada siswa. Agar kualitas lingkungan belajar menjadi baik dan sesuai serta berpengaruh secara signifikan terhadap proses pembelajaran, maka perlu dipilih lingkungan belajar yang mendukung proses pembelajaran. Kemajuan teknologi dan ilmu pengetahuan telah memberikan dampak yang sangat besar terhadap penggunaan media di sekolah. Namun, sebagian guru di sekolah Indonesia masih belum memiliki keterampilan dalam menggunakan teknologi. Agar siswa dapat menerima materi pendidikan yang disampaikan, diperlukan media yang tepat untuk membantu penyampaian materi, khususnya materi ilmiah. Metode: Penelitian ini menggunakan metode deskriptif kualitatif. Instrumen data berupa kuesioner dan daftar wawancara. Kemudian data dianalisis dengan menggunakan teknik analisis data Miles dan Huberman (199). Hasil: Hasil penelitian menunjukkan bahwa hampir 100% siswa memiliki smartphone atau laptop atau tablet sendiri. Sekitar 52% siswa menggunakan smartphone atau laptop atau tablet selama 6-12 jam sehari, yang digunakan untuk belajar (92,9%), bermain (96,9%), mencari informasi (92,1%) dan berkomunikasi (89%). Mata pelajaran Ilmiah dianggap sebagai mata pelajaran yang sulit (62,2%); parah (17,3%) dan sangat parah (13,4%). Kesimpulan: Urgensi penggunaan media pembelajaran audio visual berbasis digital dalam proses pembelajaran materi IPA memiliki kedudukan yang sangat signifikan, bahkan peran media sejajar dengan metode dalam suatu proses belajar.","PeriodicalId":33216,"journal":{"name":"Bioeduscience","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43775996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Latar Belakang: Moringa leaves extract is promising to develop into nutraceutical products, especially a chewable gummy. The desirable characteristics of chewable gummies are soft, elastic, springy, and flexible. Gelatin is a widely used gelling agent which has been proven to maintain gel structure during storage. The other ingredients which also determine the chewable gel structure are filler and plasticizer. The aim of this study was to determine the effect of sucrose and propylene glycol concentration on Moringa leaves extract based chewable gummy. Metode: The preparation of chewable gummy tablets was conducted by the pour method. Factorial design study (22) was applied in this study to analyze the effect of two factors herein filler and plasticizer. Two levels of concentration were optimized in each factor, herein sucrose (30% and 35% concentration) and propylene glycol (2% and 4% concentration) on the physical characteristics of the gummy tablet. Hasil: The results of the factorial analysis showed that the increase in sucrose concentration will produce a longer dispersion time and lower swelling ratio. Meanwhile, the increase in propylene glycol decreases the syneresis potency. The alteration of physical characteristics was observed during 14 days of storage, particularly in dispersion time, swelling ratio, and syneresis percentage. Kesimpulan: Based on the results of feasible design space, sucrose concentration (30-35%) and propylene glycol concentration (2-4%) optimized in this study produce the desirable characteristics of chewable gummy.
Latar Belakang：辣木叶提取物有望发展成为营养品，尤其是一种可咀嚼的软糖。可咀嚼软糖的理想特性是柔软、有弹性、有弹性和柔韧。明胶是一种广泛使用的胶凝剂，已被证明可以在储存过程中保持凝胶结构。同样决定可咀嚼凝胶结构的其他成分是填料和增塑剂。本研究的目的是确定蔗糖和丙二醇浓度对辣木叶提取物咀嚼软糖的影响。方法：采用倾倒法制备可咀嚼口香糖片。因子设计研究（22）应用于本研究，分析了填料和增塑剂两个因素的影响。在每个因素中优化了两个浓度水平，即蔗糖（30%和35%的浓度）和丙二醇（2%和4%的浓度）对粘性片剂的物理特性的影响。Hasil：析因分析的结果表明，蔗糖浓度的增加会产生更长的分散时间和更低的溶胀率。同时，丙二醇含量的增加降低了脱水能力。在储存14天期间，观察到物理特性的变化，特别是在分散时间、溶胀率和脱水百分比方面。Kespumplan：基于可行设计空间的结果，本研究优化的蔗糖浓度（30-35%）和丙二醇浓度（2-4%）产生了令人满意的咀嚼胶特性。
{"title":"Optimasi Konsentrasi Sukrosa dan Propilen Glikol dalam Formulasi Chewable Gummy Tablet Ekstrak Daun Kelor (Moringa oleifera L)","authors":"Karina Citra Rani, Nikmatul Ikhrom Eka Jayani, Maulidia Setaratika, Syalza Mumpuni Kusuma Dewi","doi":"10.22236/jbes/7110751","DOIUrl":"https://doi.org/10.22236/jbes/7110751","url":null,"abstract":"Latar Belakang: Moringa leaves extract is promising to develop into nutraceutical products, especially a chewable gummy. The desirable characteristics of chewable gummies are soft, elastic, springy, and flexible. Gelatin is a widely used gelling agent which has been proven to maintain gel structure during storage. The other ingredients which also determine the chewable gel structure are filler and plasticizer. The aim of this study was to determine the effect of sucrose and propylene glycol concentration on Moringa leaves extract based chewable gummy. Metode: The preparation of chewable gummy tablets was conducted by the pour method. Factorial design study (22) was applied in this study to analyze the effect of two factors herein filler and plasticizer. Two levels of concentration were optimized in each factor, herein sucrose (30% and 35% concentration) and propylene glycol (2% and 4% concentration) on the physical characteristics of the gummy tablet. Hasil: The results of the factorial analysis showed that the increase in sucrose concentration will produce a longer dispersion time and lower swelling ratio. Meanwhile, the increase in propylene glycol decreases the syneresis potency. The alteration of physical characteristics was observed during 14 days of storage, particularly in dispersion time, swelling ratio, and syneresis percentage. Kesimpulan: Based on the results of feasible design space, sucrose concentration (30-35%) and propylene glycol concentration (2-4%) optimized in this study produce the desirable characteristics of chewable gummy.","PeriodicalId":33216,"journal":{"name":"Bioeduscience","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48399450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Latar Belakang: Penelitian ini bertujuan untuk menganalisis perbedaan hasil belajar siswa antara siswa yang pembelajarannya menggunakan model pembelajaran (blended learning) dan memiliki kreativitas siswa yang tinggi dengan siswa yang pembelajarannya menggunakan model pembelajaran (discovery learning) dan memiliki kreativitas siswa yang tinggi. Metode: Penelitian ini menggunakan pendekatan metode kuantitatif. Jenis penelitian ini menggunakan metode eksperimen faktorial 2x2. Populasi penelitian yang digunakan adalah seluruh siswa kelas VII SMPN Labuan. Hasil: Hasil penelitian menunjukkan bahwa: 1) Terdapat perbedaan hasil belajar IPA antara siswa yang kegiatan pembelajarannya menggunakan model blended learning dan siswa yang menggunakan model pembelajaran discovery learning. 2) Terdapat perbedaan hasil belajar IPA antara siswa yang memiliki kreativitas tinggi dan siswa yang memiliki kreativitas rendah. 3) Terdapat perbedaan hasil belajar IPA antara siswa yang menggunakan model blended learning dan memiliki kreativitas tinggi dengan siswa yang menggunakan model pembelajaran discovery dan kreativitas tinggi. Kesimpulan: Terdapat perbedaan hasil belajar IPA antara siswa yang menggunakan model blended learning dan memiliki kreativitas rendah dengan siswa yang menggunakan model pembelajaran discovery dan memiliki kreativitas rendah.
{"title":"Pengaruh Model Pembelajaran Blended Learning dan Kreativitas Siswa Terhadap Hasil Belajar IPA Siswa Kelas VII","authors":"Andrian Irwansyah, Lukman Nulhakim, Suherman","doi":"10.22236/jbes/7110920","DOIUrl":"https://doi.org/10.22236/jbes/7110920","url":null,"abstract":"Latar Belakang: Penelitian ini bertujuan untuk menganalisis perbedaan hasil belajar siswa antara siswa yang pembelajarannya menggunakan model pembelajaran (blended learning) dan memiliki kreativitas siswa yang tinggi dengan siswa yang pembelajarannya menggunakan model pembelajaran (discovery learning) dan memiliki kreativitas siswa yang tinggi. Metode: Penelitian ini menggunakan pendekatan metode kuantitatif. Jenis penelitian ini menggunakan metode eksperimen faktorial 2x2. Populasi penelitian yang digunakan adalah seluruh siswa kelas VII SMPN Labuan. Hasil: Hasil penelitian menunjukkan bahwa: 1) Terdapat perbedaan hasil belajar IPA antara siswa yang kegiatan pembelajarannya menggunakan model blended learning dan siswa yang menggunakan model pembelajaran discovery learning. 2) Terdapat perbedaan hasil belajar IPA antara siswa yang memiliki kreativitas tinggi dan siswa yang memiliki kreativitas rendah. 3) Terdapat perbedaan hasil belajar IPA antara siswa yang menggunakan model blended learning dan memiliki kreativitas tinggi dengan siswa yang menggunakan model pembelajaran discovery dan kreativitas tinggi. Kesimpulan: Terdapat perbedaan hasil belajar IPA antara siswa yang menggunakan model blended learning dan memiliki kreativitas rendah dengan siswa yang menggunakan model pembelajaran discovery dan memiliki kreativitas rendah.","PeriodicalId":33216,"journal":{"name":"Bioeduscience","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43275629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sahasika Sean Putra, Triastuti Rahayu, Erma Musbita Tyastuti
Latar Belakang: Tempat pemakaman umum (TPU) adalah lokasi penguburan jenazah dan terjadi dekomposisi jasad secara aktif menghasilkan nutrisi dan mineral tanah yang mendukung pertumbuhan makhluk hidup di sekitarnya termasuk bakteri dan pohon Kamboja. Pohon Kamboja dikenal tahan terhadap cekaman biotik maupun abiotik yang mumgkin dipengaruhi keberadaan bakteri rizosfer sebagai plant growth promoting rhizobacteria (PGPR). Berdasar penelusuran referensi, belum ditemukan penelitian yang membahas tentang bakteri rizosfer pohon kamboja di tanah pemakaman. Penelitian ini bertujuan untuk isolasi dan karakterisasi bakteri rizosfer pohon Kamboja dari tanah makam yang berpotensi menghasilkan IAA. Metode: Sampel tanah rizosfer diambil dari TPU Pracimaloyo Surakarta Jawa Tengah pada 5 titik yang menempel pada permukaan akar pohon kamboja untuk diinokulasi menggunakan metode cawan tebar pada pengenceran 10-5 dan 10-6 di media NA (nutrient agar). Setelah 48 jam, koloni dihitung untuk mendapatkan data populasi. Kemampuan bakteri rizosfer sebagai penghasil IAA dilakukan secara kualitatif dan kuantitatif pada umur kultur 24 dan 48 jam. Isolat bakteri rizosfer potensial menghasilkan IAA dikarakterisasi secara makroskopis (morfologi koloni) dan mikroskpis dengan pewarnaan Gram. Hasil: Populasi bakteri rizosfer pohon kamboja di semua blok tidak menunjukkan perbedaan yang signifikan dan terdeteksi memiliki populasi antara 1,9 – 10,4 x 106. Uji kualitatif kemampuan menghasilkan IAA, terdeteksi 34,88% isolat menghasilkan IAA sangat tinggi. Konsentrasi IAA paling tinggi dihasilkan oleh isolat P37, diikuti P38 dan P24 pada umur 48 jam adalah 113,58 ppm, 77,95 ppm dan 55,69 ppm. Semua isolat potensial menghasilkan IAA merupakan bakteri gram negatif berbentuk kokus. Kesimpulan: Populasi bakteri rizosfer pohon kamboja di TPU Pracimaloyo berkisar antara 1,9-10,4 x 106 CFU/g dan 34,88% mempunyai kemampuan menghasilkan IAA. Konsentrasi IAA yang dihasilkan lebih tinggi pada umur kultur 48 jam dibanding 24 jam dengan konsentrasi tertinggi oleh isolat P37 (83,098 ppm dan meningkat menjadi 113,588 ppm). Isolat P37 merupakan bakteri Gram negatif berbentuk kokus dan koloni irregular.
背景：公共墓地（TPU）是尸体的埋葬地，尸体经过积极分解，产生营养和土壤矿物质，支持周围生物的生长，包括细菌和柬埔寨树木。众所周知，Campoy树对生物或非生物筛选具有抗性，这可能会影响rizosfer细菌作为植物生长促进根际细菌（PGPR）的存在。根据参考的结果，还没有发现任何研究讨论柬埔寨树木在墓地中的rissphere细菌。本研究旨在从可能产生IAA的土地上分离和鉴定柬埔寨树木rizosphere细菌。方法：从Pracimaloyo Surakarta Square Center TPU中，在NA培养基（营养琼脂）中的10-5和10-6扰动下，用厚杯法在附着在柬埔寨树表面根部的5个点处采集rizosphere土壤样品进行接种。48小时后，计算菌落以获得种群数据。risosphere细菌作为IAA产物的能力在24和48小时龄时进行定性和定量测定。潜在的rissphere分离株宏观上（菌落形态）和显微镜下革兰氏染色产生IAA。结果：所有区块的柬埔寨树木rizosphere细菌种群在1.9–10.4 x 106之间没有显示出显著的检测差异。质量检测表明，34.88%的分离株能产生很高的IAA。在48小时时，分离株P37产生的IAA浓度最高，其次是P38和P24，分别为113.58ppm、77.95ppm和55.69ppm。所有产生IAA的潜在分离株均为焦炭状阴性革兰氏细菌。结论：Pracimaloyo TPU中柬埔寨rizosphere的种群数量在1.9-10.4x106CFU/g至34.88%之间，具有产生IAA的能力。培养48小时产生的IAA浓度高于24小时，分离株P37的浓度最高（83098ppm，上升至113588ppm）。P37分离株是一种焦炭形状的革兰氏阴性菌，是一个不规则菌落。
{"title":"Isolasi dan Karakterisasi Bakteri Rizosfer Pohon Kamboja (Plumeria acuminata) di TPU Pracimaloyo sebagai penghasil IAA","authors":"Sahasika Sean Putra, Triastuti Rahayu, Erma Musbita Tyastuti","doi":"10.22236/jbes/7111375","DOIUrl":"https://doi.org/10.22236/jbes/7111375","url":null,"abstract":"Latar Belakang: Tempat pemakaman umum (TPU) adalah lokasi penguburan jenazah dan terjadi dekomposisi jasad secara aktif menghasilkan nutrisi dan mineral tanah yang mendukung pertumbuhan makhluk hidup di sekitarnya termasuk bakteri dan pohon Kamboja. Pohon Kamboja dikenal tahan terhadap cekaman biotik maupun abiotik yang mumgkin dipengaruhi keberadaan bakteri rizosfer sebagai plant growth promoting rhizobacteria (PGPR). Berdasar penelusuran referensi, belum ditemukan penelitian yang membahas tentang bakteri rizosfer pohon kamboja di tanah pemakaman. Penelitian ini bertujuan untuk isolasi dan karakterisasi bakteri rizosfer pohon Kamboja dari tanah makam yang berpotensi menghasilkan IAA. Metode: Sampel tanah rizosfer diambil dari TPU Pracimaloyo Surakarta Jawa Tengah pada 5 titik yang menempel pada permukaan akar pohon kamboja untuk diinokulasi menggunakan metode cawan tebar pada pengenceran 10-5 dan 10-6 di media NA (nutrient agar). Setelah 48 jam, koloni dihitung untuk mendapatkan data populasi. Kemampuan bakteri rizosfer sebagai penghasil IAA dilakukan secara kualitatif dan kuantitatif pada umur kultur 24 dan 48 jam. Isolat bakteri rizosfer potensial menghasilkan IAA dikarakterisasi secara makroskopis (morfologi koloni) dan mikroskpis dengan pewarnaan Gram. Hasil: Populasi bakteri rizosfer pohon kamboja di semua blok tidak menunjukkan perbedaan yang signifikan dan terdeteksi memiliki populasi antara 1,9 – 10,4 x 106. Uji kualitatif kemampuan menghasilkan IAA, terdeteksi 34,88% isolat menghasilkan IAA sangat tinggi. Konsentrasi IAA paling tinggi dihasilkan oleh isolat P37, diikuti P38 dan P24 pada umur 48 jam adalah 113,58 ppm, 77,95 ppm dan 55,69 ppm. Semua isolat potensial menghasilkan IAA merupakan bakteri gram negatif berbentuk kokus. Kesimpulan: Populasi bakteri rizosfer pohon kamboja di TPU Pracimaloyo berkisar antara 1,9-10,4 x 106 CFU/g dan 34,88% mempunyai kemampuan menghasilkan IAA. Konsentrasi IAA yang dihasilkan lebih tinggi pada umur kultur 48 jam dibanding 24 jam dengan konsentrasi tertinggi oleh isolat P37 (83,098 ppm dan meningkat menjadi 113,588 ppm). Isolat P37 merupakan bakteri Gram negatif berbentuk kokus dan koloni irregular.","PeriodicalId":33216,"journal":{"name":"Bioeduscience","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43913159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Background: Baringeng is a corn-producing village in Soppeng Regency, South Sulawesi. The main problem for corn farmers in the town is insect pests. Insect pests damage the plant, which has an impact on decreasing yields. Control of insect pests must be by the type of insect pests. This study aims to calculate the diversity of insect pests of corn in Baringeng Village and the damage they cause. Methods: Data was collected in Takku Hamlet, Baringeng Hamlet, and Tanjonge Hamlet. with a systematic plot sampling method with the help of light traps, sweep nets, and direct collection of pests. Observations included the number of individuals and types of insect pests. Data were analyzed by the Shannon-Wiener diversity index (H'), evenness index (E), dominance index (C), and similarity index. Results: There were three types of insect pests with a total of 153 individuals that attacked corn in Baringeng Village, namely grasshoppers (Oxya sp.), planthoppers (Peregrinus maidis), and armyworm (Spodoptera frugiperda). The diversity index is included in the low category (H'=0.89), the evenness index (E) is in the high sort (E=0.81), the dominance index is in the low sort (C=0.44), and the lowest similarity index shown between Dusun Baringeng and Dusun Takku (IS=50%). Conclusions: The types of insect pests found in Baringeng Village come from three different orders, namely Orthoptera, Lepidoptera, and Hemiptera. Each problem shows other attack characteristics, but all attack the leaves. So that pest control can use natural materials by spraying on leaves, polyculture, crop rotation, or taking pests directly.
{"title":"Insect Pest Diversity of Corn Plants (Zea mays) in Baringeng Village, Soppeng Regency, South Sulawesi Province","authors":"Phika Ainnadya Hasan, Nurul Hidayah, Nur Fadillah","doi":"10.22236/jbes/7111419","DOIUrl":"https://doi.org/10.22236/jbes/7111419","url":null,"abstract":"Background: Baringeng is a corn-producing village in Soppeng Regency, South Sulawesi. The main problem for corn farmers in the town is insect pests. Insect pests damage the plant, which has an impact on decreasing yields. Control of insect pests must be by the type of insect pests. This study aims to calculate the diversity of insect pests of corn in Baringeng Village and the damage they cause. Methods: Data was collected in Takku Hamlet, Baringeng Hamlet, and Tanjonge Hamlet. with a systematic plot sampling method with the help of light traps, sweep nets, and direct collection of pests. Observations included the number of individuals and types of insect pests. Data were analyzed by the Shannon-Wiener diversity index (H'), evenness index (E), dominance index (C), and similarity index. Results: There were three types of insect pests with a total of 153 individuals that attacked corn in Baringeng Village, namely grasshoppers (Oxya sp.), planthoppers (Peregrinus maidis), and armyworm (Spodoptera frugiperda). The diversity index is included in the low category (H'=0.89), the evenness index (E) is in the high sort (E=0.81), the dominance index is in the low sort (C=0.44), and the lowest similarity index shown between Dusun Baringeng and Dusun Takku (IS=50%). Conclusions: The types of insect pests found in Baringeng Village come from three different orders, namely Orthoptera, Lepidoptera, and Hemiptera. Each problem shows other attack characteristics, but all attack the leaves. So that pest control can use natural materials by spraying on leaves, polyculture, crop rotation, or taking pests directly.","PeriodicalId":33216,"journal":{"name":"Bioeduscience","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45348950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Background: Coronavirus Disease 2019 (Covid-19) is currently a serious world problem with the number of cases always increasing every day. Methods: To find out the factors related to the incidence of coronavirus disease 2019 (Covid-19) in clinical practice, this research was conducted using a quantitative method equipped with a qualitative one and using a cross-sectional design. A sample of 198 people was selected using random sampling. The research instrument used a questionnaire. Out of 198 visitors at the clinic, Result: the respondents were female 53.0%, age > 18 years 70.2%, high school graduate education 86.4%, high minimum income 78.8%, knowledge good 50%, not densely occupied 86.4%, adequate ventilation 82.2% good room lighting 97.5%, washing hands 52.9%, maintaining cough etiquette 51.9%, wearing a mask 51.4%), not holding large-scale gatherings 80.8%, Not maintaining body immunity 69.2%, good facilities and infrastructure 80.8%, Access to remote services 53.0%, there is family support 59.6%. Conclusion: The chi-square test shows that there is a significant relationship between family support and the incidence of Covid-19, Washing Hands, Wearing a Mask, PSBB. Body Immunity, Cough Ethics, then the qualitative results show that almost all informants said they always prevent COVID-19 by implementing health protocols in the form of wearing masks and keeping a distance.
{"title":"Faktor-Faktor yang Berhubungan Antara Pemberi Pelayanan Kesehatan Gigi Terhadap Pasien Disaat Kejadian Coronavirus Disease 2019 (Covid-19) Pada Praktek Klinik","authors":"Pradnya Paramita, Nuraini","doi":"10.22236/jbes/6310690","DOIUrl":"https://doi.org/10.22236/jbes/6310690","url":null,"abstract":"Background: Coronavirus Disease 2019 (Covid-19) is currently a serious world problem with the number of cases always increasing every day. Methods: To find out the factors related to the incidence of coronavirus disease 2019 (Covid-19) in clinical practice, this research was conducted using a quantitative method equipped with a qualitative one and using a cross-sectional design. A sample of 198 people was selected using random sampling. The research instrument used a questionnaire. Out of 198 visitors at the clinic, Result: the respondents were female 53.0%, age > 18 years 70.2%, high school graduate education 86.4%, high minimum income 78.8%, knowledge good 50%, not densely occupied 86.4%, adequate ventilation 82.2% good room lighting 97.5%, washing hands 52.9%, maintaining cough etiquette 51.9%, wearing a mask 51.4%), not holding large-scale gatherings 80.8%, Not maintaining body immunity 69.2%, good facilities and infrastructure 80.8%, Access to remote services 53.0%, there is family support 59.6%. Conclusion: The chi-square test shows that there is a significant relationship between family support and the incidence of Covid-19, Washing Hands, Wearing a Mask, PSBB. Body Immunity, Cough Ethics, then the qualitative results show that almost all informants said they always prevent COVID-19 by implementing health protocols in the form of wearing masks and keeping a distance.","PeriodicalId":33216,"journal":{"name":"Bioeduscience","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41627714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. R. T. Marpaung, B. Yolida, Arrum Ardila Faros, M. A. Priadi, Dina Maulina, I. Rakhmawati, Nadya Meriza, Laily Fatimatuzzahra, Yosi Fatmawati
Background: The low scientific literacy of students is caused by the selection of models and learning media that are less varied. This study aims to analyze the effect of the PBL model with digital comics on students’ scientific literacy on environmental pollution material. Methods: This type of research is a quasi-experimental nonequivalent control group design. The research sample used classes, namely class VII A and VII F, with 55 students selected using a purposive sampling technique. Results: The experimental class's average N-Gain of scientific literacy ability (0.42 ± 0.171) is moderate, while the control class (0.26 ± 0.17) is low. Conclusions: The results of this study indicate that Sig. (2-tailed) 0.001 < 0.0, meaning that the PBL model using digital comics model cs influences students' scientific literacy skills.
{"title":"The Effect of the Problem-Based Learning Model with the Help of Digital Comics on Students' Scientific Literacy Skills","authors":"R. R. T. Marpaung, B. Yolida, Arrum Ardila Faros, M. A. Priadi, Dina Maulina, I. Rakhmawati, Nadya Meriza, Laily Fatimatuzzahra, Yosi Fatmawati","doi":"10.22236/jbes/638790","DOIUrl":"https://doi.org/10.22236/jbes/638790","url":null,"abstract":"Background: The low scientific literacy of students is caused by the selection of models and learning media that are less varied. This study aims to analyze the effect of the PBL model with digital comics on students’ scientific literacy on environmental pollution material. Methods: This type of research is a quasi-experimental nonequivalent control group design. The research sample used classes, namely class VII A and VII F, with 55 students selected using a purposive sampling technique. Results: The experimental class's average N-Gain of scientific literacy ability (0.42 ± 0.171) is moderate, while the control class (0.26 ± 0.17) is low. Conclusions: The results of this study indicate that Sig. (2-tailed) 0.001 < 0.0, meaning that the PBL model using digital comics model cs influences students' scientific literacy skills.","PeriodicalId":33216,"journal":{"name":"Bioeduscience","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45497778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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