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All Journal Vegetalika INOTEKS : Jurnal Inovasi Ilmu Pengetahuan, Teknologi, dan Seni AGRITROP Agrikultura Jurnal Ilmu Dasar e-Journal Pustaka Kesehatan Berkala Ilmiah Pertanian Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan UNEJ e-Proceeding Jurnal Penelitian Pertanian Terapan Panrita Abdi - Jurnal Pengabdian pada Masyarakat Agriprima : Journal of Applied Agricultural Sciences Jurnal Bioteknologi & Biosains Indonesia (JBBI) Jurnal Penelitian Pendidikan IPA (JPPIPA) Caraka Tani: Journal of Sustainable Agriculture Indonesian Food Science and TechnologyJournal Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Agritrop : Jurnal Ilmu-Ilmu Pertanian (Journal of Agricultural Science) Jurnal Pengabdian Magister Pendidikan IPA Jurnal Karinov Jurnal Agrinika : Jurnal Agroteknologi dan Agribisnis BIOLOVA Transformasi BIOVALENTIA: Biological Research Journal Jurnal Ilmiah Buana Bastra: Bahasa, Susastra, dan Pengajarannya Jurnal Talenta Sipil JIMAKUKERTA Semanggi: Jurnal Pengabdian kepada Masyarakat Jurnal Riset Mahasiswa PAPUMA: Journal of Comunnity Services Biosaintifika: Journal of Biology & Biology Education Jurnal Keselamatan Transportasi Jalan
TRI HANDOYO
Fakultas Pertanian Universitas Jember
Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Transportation Other

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Produktivitas Pekerjaan Struktur Pondasi Bore Pile pada Proyek Hotel X di Kota Lumajang Handoyo, Tri; Ihsan, Daimil; Sucipto, Sucipto
Jurnal Talenta Sipil Vol 9, No 1 (2026): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v9i1.1146

Abstract

Construction productivity plays a crucial role in determining the success and efficiency of project implementation. In foundation works, particularly bored pile installations, productivity is often affected by various technical and environmental factors. This study focuses on analyzing the productivity of bored pile foundation work on the Hotel X project in Lumajang City and identifying the dominant factors that hinder performance. The research employed a mixed-method approach combining quantitative productivity analysis with qualitative field observations and interviews. Productivity data were calculated using the Unit Completed method, while statistical testing was conducted using SPSS software to determine the correlation between influencing variables such as materials, equipment, labor, environment, and management. The analysis revealed that for bored piles with diameters of 600 mm and 500 mm at depths ranging from 5 to 18 meters, the average productivity rate was 0.86 meters per hour per unit during a 37-day observation period (totaling 1,713 working hours). Material factors contributed most significantly to productivity losses, accounting for 39.66% of total lost work hours (165.53 hours out of 417.35 hours), followed by environmental, equipment, labor, and management factors. The findings demonstrate that inadequate material logistics and unstable soil conditions substantially reduce project efficiency. In conclusion, effective management of these key factors is essential to improve productivity performance in bored pile foundation work on construction projects.
KERAGAMAN PERTUMBUHAN VEGETATIF SEMBILAN JENIS PADI HITAM SEBAGAI SUMBER PLASMA NUTFAH POTENSIAL Zainal Abidin; Tri Handoyo; Ummi Sholikhah; Ida Maratul Khamidah; Nur Meili Zakiyah; Roby
BIOLOVA Vol. 7 No. 1 (2026): Volume 7 Nomor 1 Maret Tahun 2026
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/biolova.v7i1.11071

Abstract

Abstrak: Karakter pertumbuhan vegetatif tanaman padi merupakan indikator awal yang penting dalam mengevaluasi potensi genotipe sebagai sumber daya genetik tanaman. Penelitian ini bertujuan untuk menganalisis keragaman karakter vegetatif pada sembilan genotipe padi hitam lokal, yang meliputi tinggi tanaman, diameter batang, jumlah anakan, serta panjang dan lebar daun. Pengamatan dilakukan pada fase vegetatif dengan menggunakan Rancangan Acak Kelompok (RAK). Hasil penelitian menunjukkan bahwa perbedaan genotipe berpengaruh sangat nyata terhadap seluruh parameter vegetatif yang diamati (p < 0,05). Genotipe Hitam Purwokerto menunjukkan tinggi tanaman dan jumlah anakan tertinggi, sedangkan genotipe Hitam Melik memiliki diameter batang terbesar, dan genotipe Pari Ireng memperlihatkan panjang daun terpanjang. Variasi karakter tersebut mencerminkan adanya perbedaan genetik serta potensi adaptasi genotipe terhadap lingkungan tumbuh. Hasil penelitian menegaskan pentingnya karakter vegetatif sebagai dasar dalam seleksi genotipe unggul untuk kegiatan konservasi dan pemuliaan padi hitam lokal, khususnya dalam pengembangan varietas dengan kombinasi sifat optimal yang tahan rebah dan efisien dalam proses fotosintesis. Kata kunci: Karakter morfologi, genotipe, seleksi Abstrack: Vegetative growth characteristics of rice plants are important early indicators in evaluating the potential of a genotype as a plant genetic resource. This study aimed to analyze the diversity of vegetative characteristics in nine local black rice genotypes, including plant height, stem diameter, number of tillers, and leaf length and width. Observations were conducted during the vegetative phase using a Randomized Block Design (RBD). The results showed that genotype differences significantly affected all observed vegetative parameters (p < 0.05). The Black Purwokerto genotype showed the highest plant height and number of tillers, while the Black Melik genotype had the largest stem diameter, and the Pari Ireng genotype showed the longest leaf length. These character variations reflect genetic differences and the potential adaptation of genotypes to the growing environment. The results of this study emphasize the importance of vegetative characteristics as a basis for selecting superior genotypes for conservation and breeding activities of local black rice, especially in developing varieties with optimal combinations of traits that are resistant to lodging and efficient in the process of photosynthesis. Key word: Morphological characters, genotype, selection
Morpho-Physiological Responses of Purbalingga and Purowkerto Local Black Rices to Drought Stress Ummi Sholikhah; Khusna Khamidah; Tri Handoyo; Ahmad Ilham Tanzil; Wahyu Indra Duwi Fanata; Tri Ratnasari; Tri Wahyu Saputra
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 4 (2025): August 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i4.1148-1155

Abstract

Black rice (Oryza sativa L. indica) is a pigmented rice plant that has high antioxidant content. Drought is an abiotic stress that can inhibit the growth and productivity of rice plants. Planting of local black rice with several drought treatments using PEG 6000 was observed in this study. The aim of this research is to determine the morphological and physiological response of local black rice plants in Purbalingga and Purwokerto at various levels of drought stress. This research used a Completely Randomized Design (CRD) with 2 factors. The first factor is 2 local black rice plants, namely Purbalingga and Purwokerto. The second factor was drought stress treatment via PEG 6000 with 4 treatments, namely 0% PEG (control), 5%, 10%, and 15%. The results showed that when applying 15% PEG, local black rice in Purbalingga and Purwokerto experienced a decrease in plant height and number of leaves but increased root length. Based on the physiological response, when addition 15% PEG there was a decrease in the amount of chlorophyll and an increase in the content of H2O2 and anthocyanins in both Purbalingga and Purwokerto local black rice.   Keywords: Black Rice, Drought Stress, Morphological Response, Physiological Response.
Perubahan Karakter Agronomi, Fisiologi, dan Biokimia pada Beberapa Varietas Tebu Selama Cekaman Kekeringan Muslimah Arniyanti; Risky Mulana Anur; Bambang Sugiharto; Tri Handoyo
Vegetalika Vol 15, No 1 (2026)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/veg.112692

Abstract

Climate change in Indonesia has led to an increase in abiotic stress, particularly drought, which significantly affects sugarcane productivity. This research was conducted from 2024 to 2025 at the Laboratory of Molecular Biology and Biotechnology, Waste Management Unit, and Integrated Laboratory, University of Jember. The aim of this study was to evaluate the agronomic, physiological, and biochemical responses of five sugarcane varieties under drought stress conditions. The results showed that drought stress had varying impacts depending on the tolerance of each variety. The drought-tolerant transgenic variety (NXI4T) exhibited more stable responses, as indicated by lower drought and leaf rolling scores, higher soil water content (SWC) and relative water content (RWC), and relatively stable levels of chlorophyll, phenolics, and flavonoids. In addition, lower H₂O₂ accumulation and a stronger root system supported better adaptation to drought conditions.
Analysis of the Application of Vitamin B1 on the Response of Salinity Stress Resistance in Several Varieties of Rice (Oryza Sativa L.) Tri Ratnasari; Tri Handoyo; Parawita Dewanti; Didik Pudji Restanto
Jurnal Penelitian Pendidikan IPA Vol 10 No 8 (2024): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i8.6324

Abstract

One of the most common stresses in rice cultivation is salinity. Rice plants stressed by salinity exhibit changes such as yellowing leaves, drying tips, and chlorosis. The efforts made by the government and farmers so far include implementing cultivation scheduling techniques, planting patterns, and using stress-resistant varieties, as well as improving soil to increase water-holding capacity through lime application. Each of these efforts comes with its own risks. Another approach to enhance the growth and yield of rice plants is the application of vitamins. Providing vitamins can stimulate the growth of plant organs, as they play a crucial role in the growth process by acting as catalysts for metabolism. Research has indicated that vitamin B1 can significantly promote plant growth under stressful conditions. This study aims to investigate the positive effects of various concentrations of vitamin B1 on the growth and yield of rice plants while also reducing salinity stress. The method used involved planting three varieties of rice—IR-46, Inpari-32, and Pokkali—in planting buckets using the TABELA system. Vitamin B1 was applied at concentrations of 0, 5, and 10 mM during the peak vegetative phase, with salinity stress of 6 dS/m introduced one day after vitamin application. The plants were maintained under salinity stress conditions until harvest, during which morphological and phytochemical analyses were conducted. Morphological analysis included measurements of plant height, number of tillers, number of productive tillers, number of grains per panicle, and percentage of healthy grains. Biochemical parameters measured included total chlorophyll and electrolyte leakage analysis. The results indicate that vitamin B1 can effectively reduce stress in plants affected by salinity.
Effect of Colchicine and Bio-catharantin on the DNA Relative Content and Stomatal Structure of Black Rice (Oryza sativa L. var. Jeliteng) Setyati, Dwi; Su’udi, Mukhamad; Wulandari, Dyah Retno; Handoyo, Tri; Ulum, Fuad Bahrul
Caraka Tani: Journal of Sustainable Agriculture Vol 39, No 2 (2024): October
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v39i2.88279

Abstract

Black rice (Oryza sativa L. var. Jeliteng), known for its health benefits compared to white rice, faces challenges in productivity. Among varieties, this black rice is popular in Indonesia but shows low yield. Research on improving black rice through genetic manipulation with antimitotic substances is limited. Therefore, this study aims to compare the effects of colchicine and Bio-catharantin on the germination rate, DNA relative content, and stomatal structure of O. sativa L. var. Jeliteng. Seeds were treated with colchicine (0.1%, 0.2%, and 0.3%) and Bio-catharantin (0.1%, 0.2%, 0.3%, 0.4%, and 0.5%) at soaking durations of 12, 24, and 48 hours. Germination was assayed, ploidy was determined using flow cytometry, and stomatal traits, including size and density, were examined microscopically. The results showed that Bio-catharantin did not exhibit any toxic effects on germination rates, whereas colchicine reduced germination starting at 0.2% concentration. Both chemical agents modified the DNA relative content of Jeliteng black rice. Colchicine generally increased stomatal length and width while decreasing stomatal density, with significant changes at 0.3% concentration for 24 hours. Bio-catharantin also altered stomatal traits, enhancing length and width in most cases but significantly reducing density under certain conditions. Bio-catharantin emerged as a promising alternative to colchicine for inducing chromosomal mutations in plants, offering benefits in altered stomatal structures without the toxic effects on germination, compared to colchicine.
Co-Authors Agus Sasmito, Agus Ahdatu Uli Khikamil Maulidiya Ahmad Ilham Tanzil Ahmad Ilham Tanzil Ahmad Rivaldy, Dhea Andari, Syamsiyah Yuli Dwi Arif, Muzayin Arifin, Muhammad Reza Arum, Ayu Puspita Assery, Syeh Azmi Saleh Azmia, Azmia Mar'atul Latipah Bambang Sugiharto Bambang Sugiharto Banun Kusumawardani Budi Kriswanto, Budi Candra Prayoga, Mohammad Damayanti, Dwi Putri Oktavia Dwi Putri Oktavia Damayanti Dwi Setyati Dwika Nano Hariyanto Efsari, Aqilla Nur Fanata, Wahyu Indra Duwi Fariza Oktaviani Fuad Bahrul Ulum Galih Kusuma, Raditya Hakim, Mohammad Sulton Hakim, Saila Najma Haq, Ahmad Thoriq Izzul HARDIAN SUSILO ADDY Hopipah, Opi Ida Maratul Khamidah Ihsan, Daimil Intan Kartika Setyawati Irma Novita Sari Irza Guari Syah Fitri Juhardi, Ujang Kacung Hariyono Kartikasari, Subekah Nawa Khusna Khamidah Kiki Ulfaniah Kiki Ulfaniah Laily Ilman Widuri Laily Ilman Widuri, Laily Ilman Latif, Arkanudin Lenny Widjayanthi Luh Putu Suciati Magfiroh, Illia Seldon Mahros Darsin Marcus dos Santos Soares MISWAR - Mochammad Amrun Hidayat Mohammad Ali Mudhor Mohammad Ubaidillah Muchammad Devara , Yusuf Muhammad Hazmi Muhammad Imron Rosadi Muhammad Nur Thoriq Alfy Muhammad Syauqi Munandar, Denna Eriani Muslimah Arniyanti Nasti, Elyanisa Maharani Nisrina, Sofia Bunga Nur Meili Zakiyah Nur Widodo Parawita Dewanti Parawita Dewanti Popy Hartatie Hardjo Pratiwi, Helti Anggiana Prayoga, Mohammad Candra Pudji Restanto, Didik Puji Rahayu Putu Gita Maya Widyaswari Mahayasih Rahadiyan, Aristyo Ratnasari, Tri Restanto, Didik Restanto, Didik Pudji Risky Mulana Anur Rizka Amalia Roby Rony, Zahara Tussoleha Rudi Joelijanto Saputra, Tio Eka Saputro Gumelar, Bachtiar Sholeh Avivi Sigit Soeparjono Slameto Slameto Slameto Slameto SRI AYU MADE Sri Hartatik Sucipto Sucipto Suryo Prakoso, Suryo Su’udi, Mukhamad Tri Agus Siswoyo Tri Ratnasari Tri Wahyu Saputra Ubaidillah, Mohammad Umar Santoso Ummi Sholikhah Ummi Sholikhah Veronenci Yuliarbi Farlisa Wachju Subchan Wahyu Indra Duwi Fanata Wulandari, Dyah Retno Wulanjari, Distiana Yani Corvianindya Rahayu Yugistia Bima, Rafi Yuli Witono Zahratus Sakdiyah Zahratus Sakdiyah Zainal Abidin Zainal Zaiyin Rizky Ageng Maulidia