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Embriogenesis somatik pada kultur in vitro daun kopi robusta (coffea canephora var. Robusta chev.) Murni, Pinta
Biospecies Vol. 3 No. 2 (2010): Februari 2010
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/biospecies.v3i2.245

Abstract

This research aims to induce tissue cells of robusta coffee leaves (Coffea canephoravar. Robusta Chev.) for embryogenesis through the addition of growth regulators kinetin and 2,4-D.The growth medium used is a solid Murashige-Skoog medium (MS). The added growth regulators areA = 10-7 Kinetin without 2,4-D, E = 5 x 10-6 M Kinetin and 2.5 x 10-5M 2,4-D; H = 5x10-6M Kinetin and5x10-5 M 2,4-D, I = 7.5 x 10-6M Kinetin and 5x10-5 2,4-D. Explants used were the second leaf from topbranch ortotroph of coffee plants with a size of about 0.5 x 1.0 cm. Observations were made on thepercentage of live explants, explant growth response including the formation of callus, organogenesis,and embryogenesis. The results showed that the planted explants are 100% alive, the growthresponse in the form of direct somatic embryogenesis occurred on the addition of Kinetin 10-7 without2,4-D. Other Treatment, E produced a response in the form of greenish compact callus, while twoother treatments, H and I, form whitish crumb/fragile structured callus. Thus, it was concluded that invitro culture of leaf tissue of Robusta coffee (Coffea canephora var. Robusta Chev.) on Murashige-Skoog (MS) medium with the addition of kinetin growth regulators and 2,4-D at different concentrationsproduce higher different growth rate. Response of growth that occurs is in the form of direct somaticembryogenesis, compact and crumb/fragile structured callus.
Raising pH of Red-Yellow Podsolik Soil by Adding Ashes and its Relation to Nitrogen Fixer Microorganism Acitivities Murni, Pinta
Biospecies Vol. 2 No. 2 (2009): Juni 2009
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/biospecies.v2i2.251

Abstract

The aim of this study to was to observe the impact of raising the pH of red-yellow soil byadding ashes and its relation to nitrogen fixer microorganisms activities. This experiment wasconducted using completely randomized design. The treatment is ash level i.e A = 0 g (control), B =20 g, C = 30 g, D = 40g, E = 50g, and F = 60g in 5 Kg of soil. The experiment was tested onsoybean (Glycine max (L.) Merr.). Measurement included soil pH both before and after treatment andthe number and biomass of nodules. The results of the study show that ashes significantly increasesoil pH (between 1,39 and 1,74 point) and significantlt affect on the number and biomass ofnodules. The highest number of nodules was found on treatment C and D, whereas the highestbiomass was on C and E. The optimal ash concentration to increases red-yellow podsolik soil pH andformation of nodule in Soybean is 30 to 50 g in 5 Kg soil.
Effect of Type and Arbuskular Mikoriza Mushroom Dosage (CMA) to Growth of Chili [Capsicum annuum L.] at Ultisol Soil Harlis, Harlis; Murni, Pinta; Fitria, Ayu Billy
Biospecies Vol. 1 No. 2 (2008): Agustus 2008
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/biospecies.v1i2.270

Abstract

The research has objective to know the effect of type and arbuskular mikoriza mushroom doses (CMA)to growth of chili (Capsicum annuum L.) at ultisol soil. This research used Completely Randomize Design of Factorialpattern consisting of two factor, that is : first factor of mikoriza type which consist of 3 level, j1 = Glomus sp., j2 =Gigaspora sp. and j3 = Glomus sp. and Gigaspora sp., than second factor of mikoriza doses which consist of 4level, d0 = 0 g, d1 = 5 g, d2 = 10 g. and d3 = 15 g. Data analyzed to use ANOVA and test continued DNMRT at 5% reallevel. The result showed that arbiskular mikoriza doses and type was significantly different to high plant, biomass growon and content of P. Type Gigaspora sp. with dose 15 g can be improve P element absorption and optimal growthvegetative.
Pengaruh Asam Giberelat (Ga3) Terhadap Perkecambahan dan Pertumbuhan Vegetatif Duku (Lansium Dookoo Griff.) Murni, Pinta; Harjono, Danang Puspo; Harlis, Harlis
Biospecies Vol. 1 No. 2 (2008): Agustus 2008
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/biospecies.v1i2.271

Abstract

Penelitian ini bertujuan mengetahui pengaruh Asam Giberelat (GA3) terhadap perkecambahan danpertumbuhan vegetatif duku. Perlakuan dengan pemberian GA3 pada beberapa konsentrasi yaitu 10 ppm, 50 ppm,100 ppm, 150 ppm, 200 ppm, 250 ppm, dan 0 ppm sebagai kontrol. Penelitian menggunakan Rancangan AcakLengkap (RAL) dengan empat kali ulangan. Pengamatan dilakukan terhadap waktu perkecambahan, dayaperkecambahan, tinggi tanaman, dan biomas (berat daun spesifik). Hasil analisis ragam menunjukkan bahwapemberian GA3 pada konsentrasi yang berbeda memberikan pengaruh berbeda nyata terhadap waktuperkecambahan dan daya perkecambahan (kecambah normal),. Berdasarkan hasil penelitian disimpulkan bahwa GA3dapat mempercepat perkecambahan biji duku, konsentrasi optimal untuk parameter perkecambahan yang diamatiadalah 100 dan 150 ppm.
PENGARUH PUPUK ORGANIK TERHADAP PERTUMBUHAN SENGON (Albizia falcataria (L.) Fosberg) Muswita, Muswita; Murni, Pinta; Herliana, Lia
Biospecies Vol. 1 No. 1 (2008): Februari 2008
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/biospecies.v1i1.278

Abstract

The research has objectives to know the effect of kind of organic manure to growth and know optimal kind ofmanure to growth sengon (Albizia falcataria(L.) Fosberg). This research used completely randomize designconsisted of 5 treatment such as goats manure, chickens manure, cows manure, compost manure andwithout manure with 5 replication. The data dianalysed with Anova and test continue DNMRT at 5% reallevel. The result showed that organic manure was significantly different to high and sengon stem diameter butwas not significantly differen to amount of leaf. Based of the result of research , it may be concleted thatgoats manure gave the best result.
The Effect of the Problem-Based Learning Model Based on the Science, Technology, Engineering, and Mathematics (STEM) Approach on Students' Creative Thinking Ability Nenni Sara; Pinta Murni; Syamsurizal Syamsurizal
Jurnal Inovasi Pendidikan dan Sains Vol 6 No 2 (2025): August
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Nahdlatul Wathan Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51673/jips.v6i2.2528

Abstract

This research aims to analyze the effect of the Problem-Based Learning (PBL) model based on the STEM approach on students' creative thinking ability in the topic of the plant reproductive system. The design used was a quasi-experiment with a pretest-posttest control group model. The population consisted of all Grade IX students of MTS Laboratorium Jambi, totaling 120 students, while the sample comprised 48 students, consisting of Class IX-D and Class IX-E. The instruments used were an essay test of creative thinking ability and a student response questionnaire toward the Problem-Based Learning Model based on STEM. The initial data analysis techniques used the normality test, homogeneity test, and hypothesis test, while the final data analysis techniques used the N-Gain test and analysis of creative thinking ability data. The results of the analysis of creative thinking ability showed an N-Gain score of 0.57 in the experimental class, which is categorized as moderately effective, while the control class obtained an N-Gain score of 0.44, which is categorized as less effective. The PBL Model Based on STEM had a moderate effect on creative thinking ability. Based on the research findings, the dominant indicator of creative thinking was originality, which was moderately effective, while flexibility was found to be effective
Flowering and Fruiting Phenology of Kecipir (Psophocarpus tetragonilobus (L.) DC.) Anggun Yuniar; Pinta Murni; Erick Sanjaya
Jurnal Inovasi Pendidikan dan Sains Vol 6 No 3 (2025): December
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Nahdlatul Wathan Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51673/jips.v6i3.2702

Abstract

Winged bean (Psophocarpus tetragonolobus (L.) DC.) is a plant with high potential as a nutritious food source. Information on the flowering and fruiting phenology of winged bean is the main focus of this study, which aims to observe and analyze each phase of flower and fruit development as well as environmental factors. The study was conducted in Pandan Lagan Village, Geragai District, East Tanjung Jabung Regency, Jambi, from September 2024 to January 2025, using a descriptive method with qualitative and quantitative approaches. The study population included all winged bean plants planted at the study site, while three winged bean plants were sampled. Each plant was observed for five flower buds, resulting in a total sample of 15 flower buds. Observations were made on the flower and fruit development phases, starting from the initiation phase of flower bud formation, until ripe fruit, and environmental factors. Observations were carried out every day, namely at 08.00–10.00 WIB. The results of the study showed that the winged bean flowering phase lasted for 22 days, the initiation to anthesis phase lasted for 20 days, followed by a two-day post-anthesis phase. Meanwhile, the fertilization process from fruit initiation to maturity lasted for 13 days. Environmental factors included an average temperature of 26.04°C, air humidity of 40.69%, light intensity of 4,435.46 lux, and rainfall of 9.68 mm. These findings are expected to provide data information that can be used as a crucial basis for consideration in planning winged bean cultivation in the region
Penambahan Wawasan Kompetensi Literasi Sains Melalui Pembelajaran Praktikum Virtual Bagi Guru-guru MGMP Biologi Kabupaten Tanjung Jabung Timur Kartika, Winda Dwi; Hariyadi, Bambang; Subagyo, Agus; Murni, Pinta; Siburian, Jodion
Jurnal ABDINUS : Jurnal Pengabdian Nusantara Vol 7 No 1 (2023): Volume 7 Nomor 1 Tahun 2023
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/ja.v7i1.17716

Abstract

Teachers in the regions need training and assistance, especially during the current Covid-19 pandemic. The Biology Subject Teacher Deliberation (MGMP) of Tanjung Jabung Timur Regency in collaboration with the Community Service Team of the Biology Education Study Program, Jambi University seeks to find solutions to several problems faced by teachers as partners by designing virtual practicum training and simple practicum. Service activities are carried out of increasing teacher knowledge regarding scientific literacy competencies in conditions with limited facilities and infrastructure. Through this training activity, it is expected to increase the creativity and innovation of teachers in carrying out practicums. The implementation of the service is designed online through several platforms, namely zoom meeting, WAG and google form. The Devotion Team made learning videos and virtual practicum guides and prepared materials that were distributed to participants via WAG. Furthermore, an online meeting was held through a zoom meeting for the delivery of learning contracts and materials. In general, the implementation of the activities went well. The participants were 20 people, consisting of high school teachers throughout Tanjung Jabung Timur Regency, and the Community Service Team. The activities are carried out through zoom and discussion via WAG. During the implementation via zoom, some participants experienced signal difficulties because the location of their residence/school was quite remote and difficult to access. Furthermore, participants provide weekly reports for invoices from this training activity and discuss actively through WAG.
Development of Integrated Learning Tools for Character Values in Science Subjects in Junior High School Monita, Monita; Asyhar, Rayandra; Murni, Pinta
Integrated Science Education Journal Vol 5 No 1 (2024): January
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/isej.v5i1.692

Abstract

Purpose of the study: The purpose of this study is to provide learning tools along with Student Worksheets that are integrated with character values, to determine student responses to Student Worksheets contained in learning tools, and to determine the effectiveness of Student Worksheets. Methodology: The development procedures used are ADDIE, Analysis, Design, Development, Implement, Evaluate, with a research design of one group pretest-postest design. The sample of the study was 33 grade VIII students, Junior High school 17 Jambi City. The instruments used are questionnaires, observation sheets of teacher and student needs, and documentation. The instruments used are obtained by adaptation. Main Findings: The results of the teacher's response obtained an average score of 4 with a good category and the results of the average student response of 4.2 with a good category. The validation results of material experts and media experts were 3.9, Good category and 4.5, Very Good category, respectively Novelty/Originality of this study: This research integrates character values into a learning tool equipped with Student Worksheets. From this research will help readers to know how to integrate character values into a learning tool.
Eksplorasi Etnomatematika pada Motif Batik Sarolangun dalam Pembelajaran Geometri Sri Mariana; Bambang Hariyadi; Pinta Murni; M. Naswir
GAUSS: Jurnal Pendidikan Matematika Vol. 9 No. 1 (2026)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/7gpa8q38

Abstract

Abstrak Pembelajaran matematika berbasis budaya lokal menghubungkan konsep matematis dengan pengalaman sehari-hari peserta didik. Penelitian ini menelusuri unsur etnomatematika pada motif Batik Sarolangun dan keterkaitannya dengan konsep geometri untuk pembelajaran sekolah. Pendekatan kualitatif dengan desain etnografi digunakan, dengan data dikumpulkan melalui observasi partisipatif, wawancara mendalam, dan dokumentasi di dua sentra Batik Sarolangun. Tiga pengrajin senior dipilih secara purposif sebagai informan. Analisis data mengikuti model Spradley (domain, taksonomi, komponen, tema budaya), sementara identifikasi konsep geometri dilakukan melalui analisis visual bentuk, pola pengulangan, simetri, dan transformasi motif. Hasil menunjukkan delapan motif utama memuat bangun datar (lingkaran, elips, segitiga, trapesium, belah ketupat, setengah lingkaran, persegi panjang) serta transformasi geometri (translasi, refleksi, rotasi, dilatasi). Penelitian ini menegaskan Batik Sarolangun sebagai sumber belajar geometri berbasis budaya lokal dan menyediakan dasar empiris untuk pengembangan bahan ajar dan strategi pembelajaran yang kontekstual di SD dan SMP. Kata kunci: Etnomatematika, Batik Sarolangun, Geometri, Transformasi Geometri, Pembelajaran Matematika. Abstract Culture-rooted mathematics instruction offers a contextual route to bridging mathematical ideas with learners' lived realities. The present study seeks to investigate ethnomathematical features embedded in Sarolangun Batik motifs and to map the geometric concepts contained therein onto school mathematics content. A qualitative approach with an ethnographic design was adopted. Data were gathered through participatory observation, in-depth interviews, and documentation at two Sarolangun Batik production centres in Sarolangun Regency, Jambi Province. Three senior batik artisans were selected purposively, each with at least ten years of crafting experience and full mastery of the regional motif repertoire. Spradley's analytical stages domain, taxonomic, componential, and cultural theme analysis—guided the data interpretation. Geometric concepts were identified through systematic visual analysis of shape, repetition, symmetry, and transformation patterns. The findings reveal that eight principal motifs of Sarolangun Batik encode plane-geometry concepts (circles, ellipses, triangles, trapezoids, rhombi, semicircles, rectangles) and transformation-geometry concepts (translation, reflection, rotation, and dilation). These results suggest that Sarolangun Batik holds considerable promise as an authentic, contextual ethnomathematical resource for teaching plane figures, symmetry, and geometric transformations at the elementary and lower-secondary levels. Keywords: Ethnomathematics, Sarolangun Batik, Geometry, Geometric Transformation, Mathematics Learning.