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  • Item type:Item,
    Perbedaan Hasil Belajar Siswa Menggunakan Pembelajaran Problem Based Learning (PBL) dengan Pembelajaran Cooperative Learning Tipe Think Pair Share (TPS) pada Siswa Kelas X Mata Pelajaran Ekonomi SMAN 1 Tanggul Kabupaten Jember
    (Fakultas Keguruan dan Ilmu Pendidikan, 2026-08-26) Sevrina Bella Pradana
    Good learning is certainly driven by the achievement of good learning outcomes. Education has undergone significant changes, including in a wide variety of learning models, such as PBL and TPS-type cooperative learning. The purpose of this study was to determine the differences in student learning outcomes between problem-based learning models and cooperative learning type TPS in grade X of SMAN 1 Tanggul, Jember Regency, in the 2025/2026 academic year. The population of this study was grade X students at SMAN 1 Tanggul. The research method used in this study was a quasi-experimental with a quantitative approach. The sample taken in this study was grades X4 and X6, each with 36 students. The sampling technique used the purposive sampling method, which was based on the result of interviews with economics teachers who stated that economics learning outcomes were still low. The technique used to collect learning outcome data was a post-test with 10 descriptive questions. . The results of the instrument validity tests show that all questions obtained valid results, as evidenced by a significance value of <0.05. The results of the instrument reliability test show that all questions obtained reliable results, as evidenced by the magnitude obtained from the reliability test being 0.848. The results of the hypothesis testing show that the results of the normality test show that the control class obtained a significance of 0.078 and the experimental class obtained a significance value of 0.131 with the results of all data being normally distributed. The results of the homogeneity test obtained a significance value of 0.146 with these results, the data was declared homogeneous. Based on the results of the Independent sample t Test analysis, the results were 0.000 <0.05, which means there is a significant influence on the differences in learning outcomes of the Problem Based Learning (PBL) learning model and the Cooperative Learning learning model of the Think Pair Share (TPS) type.
  • Item type:Item,
    Identifikasi Morfologi, Fisiologi, dan Ekspresi GmSLAH3 pada Tanaman Kedelai (Glycine max L.) terhadap Cekaman Salinitas dengan Aplikasi Silika pada Sistem Hidroponik
    (Fakultas Pertanian, 2026-07-30) Dara Shinta Nurhidayah
    Cekaman salinitas merupakan salah satu faktor pembatas utama dalam budidaya kedelai karena dapat menghambat pertumbuhan, mengganggu keseimbangan ion, menurunkan aktivitas fotosintesis, serta meningkatkan stres oksidatif. Aplikasi silika diketahui mampu meningkatkan toleransi tanaman terhadap cekaman salinitas, sedangkan GmSLAH3 berperan dalam regulasi homeostasis ion dan pembukaan stomata selama tanaman mengalami cekaman. Penelitian ini bertujuan untuk mengkaji pengaruh aplikasi silika terhadap respons morfologi, fisiologi, biokimia, kandungan pigmen fotosintesis, kandungan silika, dan ekspresi GmSLAH3 pada tanaman kedelai yang mengalami cekaman salinitas. Penelitian menggunakan dua varietas kedelai, yaitu Dering 1 dan Gepak Kuning, dengan empat perlakuan, yaitu kontrol, NaCl 160 mM, silika, dan NaCl+silika pada hidroponik wick system. Parameter yang diamati meliputi pertumbuhan tanaman, kandungan pigmen fotosintesis, H₂O₂, MDA, kebocoran elektrolit, kadar air relatif, karakter stomata, kandungan silika, dan ekspresi GmSLAH3. Hasil penelitian menunjukkan bahwa cekaman salinitas menurunkan pertumbuhan tanaman, kandungan klorofil, serta karakter stomata, dan meningkatkan kandungan H₂O₂ serta MDA. Aplikasi silika mampu meningkatkan kandungan klorofil dan silika, menekan akumulasi H₂O₂ dan MDA, serta memengaruhi ekspresi GmSLAH3.
  • Item type:Item,
    Skrining Aktinomisetes Selulolitik Asal Rizosfer Dehaasia pugerensis Koord. & Valeton di Kawasan Bandealit
    (Fakultas Matematika dan Ilmu Pengetahuan Alam, 2026-07-20) Lilis Setiyorini
    The bioconservation of Dehaasia pugerensis, a rare and endemic plant, can be supported through preliminary exploration of the potential of actinomycete isolates derived from the rhizosphere of D. pugerensis. Cellulolytic actinomycetes play a role in litter decomposition through the production of cellulase enzymes, thereby potentially increasing the availability of nutrients, particularly organic carbon, in the soil. This study aims to obtain actinomycete isolates with the highest cellulase activity and to determine the morphological characteristics of the selected isolates. The research methodology included screening cellulolytic actinomycetes on cellulase medium, macroscopic observations including colony shape and texture, as well as the color of the substrate and aerial mycelium and microscopic observations including spore chain structure using the cover slip method and Gram staining followed by identification to the genus level based on literature references. The results showed that all 24 selected actinomycete isolates exhibited cellulolytic activity. The actinomycete isolates with the highest cellulase activity were DP2, DP11, DP15, and DP19. Morphological observations showed that isolates DP2, DP11, DP15, and DP19 had powdery colony textures and circular colony shapes, while Gram staining results indicated that all of these isolates were Gram-positive bacteria. The spore chain structure in isolates DP2, DP11, and DP15 was open spiral, whereas isolate DP19 had a closed spiral spore chain. Based on these spore chain structures, isolates DP2, DP11, DP15, and DP19 belong to the genus Streptomyces.
  • Item type:Item,
    Aplikasi Value Engineering pada Desain Kemasan UMKM Roti Gembong Hamasah
    (Fakultas Teknologi Pertanian, 2026-07-30) Muhammad Rizky Alamsyah
    Kemasan produk Roti Gembong Hamasah saat ini dinilai kurang menarik secara visual dan belum optimal dalam menyajikan informasi produk, sehingga menghambat daya saing di pasaran. Penelitian ini bertujuan untuk merancang alternatif desain kemasan yang sesuai dengan preferensi konsumen dengan menerapkan metode Value Engineering (VE). Pendekatan ini diterapkan untuk menganalisis fungsi-fungsi utama kemasan dan mengembangkan alternatif desain yang sesuai dengan kebutuhan konsumen serta mempertimbangkan aspek biaya produksi. Tahapan penelitian meliputi identifikasi atribut kemasan melalui kuesioner kepada 100 responden, pemetaan fungsi menggunakan FAST Diagram, pengembangan alternatif desain melalui analisis morfologi, dan evaluasi performansi menggunakan metode zero-one serta perhitungan biaya produksi. Hasil penelitian menunjukkan bahwa atribut bahan kemasan dan informasi produk memiliki tingkat kepentingan relatif tertinggi bagi konsumen. Berdasarkan analisis performansi dan biaya, Konsep 3 terpilih sebagai desain terbaik dengan nilai (Value) tertinggi sebesar 1,344. Konsep ini menggunakan bahan kertas kraft dengan bentuk Gable Box, label informasi lengkap, dan elemen inovasi yang kuat. Desain ini menawarkan performansi unggul dengan biaya produksi sebesar Rp2.600 per unit. Penerapan desain kemasan baru ini diharapkan dapat meningkatkan daya tarik produk, memperkuat citra merek, serta memberikan nilai tambah yang signifikan bagi UMKM Roti Gembong Hamasah.
  • Item type:Item,
    Skrining Aktinomiset Pelarut Fosfat Asal Rizosfer Dehaasia pugerensis Koord. & Valeton di Kawasan Bandealit
    (Fakultas Matematika dan Ilmu Pengetahuan Alam, 2026-07-19) Dini Wasila
    Dehaasia pugerensis Koord. & Valeton is a Critically Endangered (CR) plant species endemic to Jember Regency, Indonesia. Its natural habitat is dominated by calcareous soils, which tend to have low phosphorus availability due to calcium binding. This condition may inhibit plant growth, thereby necessitating the role of phosphate-solubilizing microorganisms, including actinomycetes. This study aimed to determine the ability of actinomycetes isolated from the rhizosphere of D. pugerensis to solubilize phosphate and to identify the best isolates based on their macroscopic and microscopic morphological characteristics. A total of 24 actinomycetes isolates from the Sub-Microbiology Collection of the Faculty of Mathematics and Natural Sciences, University of Jember, were used in this study. Phosphate-solubilizing ability was screened on Pikovskaya agar by observing clear zones and calculating the phosphate solubilization index. Isolates with the highest phosphate solubilization indices were subsequently characterized macroscopically on ISP-4 medium and microscopically using Gram staining and the cover slip method to observe spore chains. The results showed that most isolates formed clear zones, indicating phosphate-solubilizing activity. The ten isolates with the highest phosphate solubilization indices were DP30, DP21, DP11, DP17, DP10, DP27, DP4, DP9, DP14, and DP24. Macroscopic characterization revealed considerable variation in colony morphology, including colony shape, margin, elevation, aerial and substrate mycelial color, and pigment production among the selected isolates. Morphological characterization revealed that all isolates exhibited spiral spore chains and long, straight chains of spores. According to Bergey’s Manual of Systematic Bacteriology (9th Edition), these characteristics indicate that the isolates belong to the genus Streptomyces. All isolates were Gram-positive. It can be concluded that actinomycetes from the rhizosphere of D. pugerensis have potential as phosphate solubilizers, with isolate DP30 showing the highest phosphate solubilization index.