Trichoderma viride adalah patogen dalam dirinya sendiri dan dapat menyebabkan jamur busuk hijau pada jamur yang dibudidayakan. Pada awalnya koloni T. viride berwarna putih dalam media Potato Dextrose Agar (PDA), setelah dibiarkan lama berkisar 3-4 hari koloni tersebut akan berwarna hijau. Penelitian ini bertujuan untuk mengetahui “Uji aktivitas ekstrak jantung pisang (Musa paradisiaca formatypica) sebagai antifungi Trichoderma viride pada media tanam baglog jamur tiram var. Greyoyter sebagai sumber belajar mata kuliah mikrobiologi. Penelitian ini menggunakan metode uji difusi cakram dengan melihat zona hambat yang ditandai dengan adanya zona bening di sekeliling kertas cakram yang menggunakan 4 konsentrasi meliputi 0%, 50%, 75% dan 100% masing-masing perlakuan diulang sebanyak 6 kali. Diameter zona hambat yang ditandai dengan adanya zona bening disekeliling kertas cakram akan diukur dengan menggunakan jangka sorong dan hasil data tersebut akan dianalisis secara deskriptif. Hasil analisis menunjukkan adanya perbedaan zona hambat yang ditandai dengan adanya zona bening disekeliling kertas cakram dengan konsentrasi 100% rata-ratanya 23.96 mm sedangkan pada konsentrasi 50% rata-ratanya 19.76 mm.
{"title":"AKTIVITAS ANTIFUNGI EKSTRAK JANTUNG PISANG Musa Pradisiaca formatypica Terhadap Pertumbuhan Trichoderma viridae","authors":"Dwi Nur Rikhma Sari1","doi":"10.30742/jnsl.v1i1.21","DOIUrl":"https://doi.org/10.30742/jnsl.v1i1.21","url":null,"abstract":" Trichoderma viride adalah patogen dalam dirinya sendiri dan dapat menyebabkan jamur busuk hijau pada jamur yang dibudidayakan. Pada awalnya koloni T. viride berwarna putih dalam media Potato Dextrose Agar (PDA), setelah dibiarkan lama berkisar 3-4 hari koloni tersebut akan berwarna hijau. Penelitian ini bertujuan untuk mengetahui “Uji aktivitas ekstrak jantung pisang (Musa paradisiaca formatypica) sebagai antifungi Trichoderma viride pada media tanam baglog jamur tiram var. Greyoyter sebagai sumber belajar mata kuliah mikrobiologi. Penelitian ini menggunakan metode uji difusi cakram dengan melihat zona hambat yang ditandai dengan adanya zona bening di sekeliling kertas cakram yang menggunakan 4 konsentrasi meliputi 0%, 50%, 75% dan 100% masing-masing perlakuan diulang sebanyak 6 kali. Diameter zona hambat yang ditandai dengan adanya zona bening disekeliling kertas cakram akan diukur dengan menggunakan jangka sorong dan hasil data tersebut akan dianalisis secara deskriptif. Hasil analisis menunjukkan adanya perbedaan zona hambat yang ditandai dengan adanya zona bening disekeliling kertas cakram dengan konsentrasi 100% rata-ratanya 23.96 mm sedangkan pada konsentrasi 50% rata-ratanya 19.76 mm.","PeriodicalId":367361,"journal":{"name":"Journal of Natural Sciences and Learning","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124075162","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}
In the 21st century technological advances can support the improvement of thelearning process. By utilizing existing technology, teachers need to pay attention to aspectsof learning media in supporting the learning process. This research is an R&D (Researchand Development) development research which aims to produce appropriate and feasibledevelopment of natural science teaching materials (IPA) in junior high schools accordingto the validation results of material experts, media experts and student responses. Studentsbecome interested in studying and understanding the material provided.This development research leads to the ADDIE development model which consists of fivestages in research, namely: 1) Analysis, 2) Design, 3) Development, 4) Implementation, 5)Evaluation. The technique of using data uses student response questionnaires. Data analysisused qualitative and quantitative descriptive analysis techniques
在21世纪，技术进步可以支持学习过程的改进。通过利用现有的技术，教师需要注意学习媒体在支持学习过程中的各个方面。本研究是一项R&D (research and Development)开发研究，旨在根据材料专家、媒体专家和学生反馈的验证结果，对初中自然科学教材(IPA)进行适当的、可行的开发。学生对学习和理解所提供的材料产生了兴趣。本次开发研究得出了ADDIE开发模型，该模型分为五个阶段，即:1)分析，2)设计，3)开发，4)实施，5)评估。使用数据的技术使用学生回答问卷。数据分析采用定性和定量描述性分析技术
{"title":"Video Pembelajaran Wondershare Filmora Pada Materi Perkembangbiakan Tumbuhan","authors":"Mutiara Putty Padmasari, Sukian Wilujeng, Pramita Laksitarahmi Isrianto","doi":"10.30742/jnsl.v1i1.16","DOIUrl":"https://doi.org/10.30742/jnsl.v1i1.16","url":null,"abstract":"In the 21st century technological advances can support the improvement of thelearning process. By utilizing existing technology, teachers need to pay attention to aspectsof learning media in supporting the learning process. This research is an R&D (Researchand Development) development research which aims to produce appropriate and feasibledevelopment of natural science teaching materials (IPA) in junior high schools accordingto the validation results of material experts, media experts and student responses. Studentsbecome interested in studying and understanding the material provided.This development research leads to the ADDIE development model which consists of fivestages in research, namely: 1) Analysis, 2) Design, 3) Development, 4) Implementation, 5)Evaluation. The technique of using data uses student response questionnaires. Data analysisused qualitative and quantitative descriptive analysis techniques","PeriodicalId":367361,"journal":{"name":"Journal of Natural Sciences and Learning","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121020220","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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