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Kajian Agribisnis Komoditas Unggulan Tanaman Pangan di Kabupaten Lima Puluh Kota Marlinda, Barirah; Lubis, Iskandar; Sitorus, Santun R.P
Journal of Regional and Rural Development Planning (Jurnal Perencanaan Pembangunan Wilayah dan Perdesaan) Vol. 7 No. 3 (2023): Journal of Regional and Rural Development Planning (Jurnal Perencanaan Pembangu
Publisher : P4W IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jp2wd.2023.7.3.310-325

Abstract

Superior agricultural commodities, especially food crops, are one of the development potency in Lima Puluh Kota Regency, West Sumatra Province. Therefore, it is necessary to study the superior commodities by considering agribusiness systems from upstream to downstream in order to increase regional competitiveness and people's welfare. This study was conducted to identify superior food crops and examine the agribusiness system of superior food crops in Lima Puluh Kota Regency. Based on the analysis of superior commodities using Location Quotient (LQ) and Shift Share Analysis (SSA), superior food crop commodities are rice, corn, peanut, and cassava. These superior commodities are spread over 8 districts, namely Mungka, Payakumbuh, Harau (rice), Guguak, Luak, Lareh Sago Halaban (corn), Suliki (peanuts), and Akabiluru (cassava). The analysis of the agribusiness system describes the conditions of each agribusiness sub-system of the superior food crop commodities starting from the upstream (on-farm) downstream (off-farm). The agribusiness system for superior food crop commodities in Lima Puluh Kota Regency has not run well, integrated and synergistic, especially in the downstream agribusiness subsystem.
Pengaruh Dosis Pupuk Fosfor dan Kalium terhadap Produksi dan Pertumbuhan Kedelai (Glycine max (L.) Merrill) Harahap, Ade Tika Sari; Lubis, Iskandar; Palupi, Endah Retno
Buletin Agrohorti Vol. 12 No. 3 (2024): Buletin Agrohorti
Publisher : Departemen Agronomi dan Hortikultura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrob.v12i3.51660

Abstract

Kedelai merupakan salah satu komoditas prioritas yang diupayakan untuk ditingkatkan produksinya guna mengurangi impor. Upaya peningkatan produksi nasional kedelai di antaranya perbaikan teknik budi daya melalui pengaturan pupuk. Pupuk fosfor (P) dan kalium (K) yang merupakan pupuk dasar yang dibutuhkan dalam budi daya kedelai. Penelitian ini bertujuan mendapatkan informasi mengenai pengaruh dosis pupuk P dan K terhadap pertumbuhan dan produksi kedelai. Penelitian dilakukan di Kebun Percobaan IPB Sawah Baru dari bulan September hingga Desember 2021. Percobaan menggunakan rancangan kelompok lengkap teracak (RKLT) dengan dua faktor percobaan, yakni dosis pupuk P (0, 50, 100, dan 150 kg SP-36 ha- 1) dan dosis pupuk K (0, 100, dan 150 kg KCl ha-1). Varietas yang digunakan adalah Anjasmoro. Hasil penelitian menunjukkan pemberian pupuk P mempercepat umur panen serta menaikkan indeks luas daun, nilai kehijauan daun fase R1, bobot kering tajuk, laju pertumbuhan tanaman fase R5−R8, bobot biji per tanaman, bobot ubinan, dan potensi hasil kedelai. Dosis 150 kg SP-36 ha-1 menghasilkan bobot biji per tanaman, bobot ubinan, dan potensi hasil tertinggi dibanding dosis lainnya. Hasil panen perlakuan pupuk P 100 kg SP-36 ha-1 dan 150 kg SP-36 ha-1 melampaui potensi hasil varietas. Pemupukan K memperpanjang fase pengisian polong (R5) dan meningkatkan tinggi tanaman pada 9 MST, bobot kering tajuk, bobot biji per tanaman, bobot 100 butir, bobot ubinan, dan potensi hasil kedelai. Dosis 150 kg KCl ha-1 menghasilkan komponen produksi kedelai tertinggi dibanding dosis lainnya. Kata kunci: bobot biji, bobot kering tajuk, potensi hasil, umur panen, umur pengisian polong
Observasi Keragaan Ukuran Benih, Endosperma, dan Embrio Genotipe Padi (Oryza sativa L.) Tropis dengan Image Analysis: Observasi Keragaan Ukuran Benih, Endosperma, dan Embrio Genotipe Padi Tropis (Oryza sativa L.) dengan Image Analysis Fauzi, Ahmad Rifqi; Junaedi, Ahmad; Lubis, Iskandar; Ghulamahdi, Munif; Aswidinnoor, Hajrial
AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Vol 8 No 2 (2024): AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/agrosainstek.v8i2.442

Abstract

Rice is important staple food in the world. One important input in rice production is seed vigor, is determined by seed characteristics such as seed size and shape. The Digital image processing could facilitate observations of seed size faster, large samples, produce accurate, and robust data. However, this study was designed to investigate size of seed, endosperm and embryo of 55 tropical rice genotypes using image analysis and correlation anlysis between characters. A total of 400 seeds, 40 endosperms, and 8 embryos containing each genotype were investigated for their size characteristics. The results of the investigation showed that genotype differences had a significant effect on size of seed, endosperm and embryo. The length of tropical rice seeds is included in the medium-very long seeds and has a significant positive correlation (α <0.01) with the weight of 1000 grain grains, seed area, shape of the seed (length-to-width ratio), and endosperm length. Embryo size characters (length, width, area, and circumference) have a significant positive correlation (α <0.05) with seed area. The results can be considered in the crop improvement of tropical rice plants in the future.
Evaluation Trial of Drought Damage of Rice Based on RGB Aerial Image by UAV Giamerti, Yuti; Darmadi, Didi; Junaedi, Ahmad; Lubis, Iskandar; Sopandie, Didie; Yuanita Meishanti, Ospa Pea; Sari, Kartika; Hongo, Chiharu; Homma, Koki
agriTECH Vol 44, No 4 (2024)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.86077

Abstract

Unmanned Aerial Vehicle (UAV) remote sensing is recommended to evaluate damage quickly and quantitatively. Therefore, this study aimed to explore the use of RGB aerial images by UAV for evaluating drought damage of rice through canopy color and coverage. The procedures were conducted in the dry season of 2018 (August – September 2018) at the Balitkabi Experimental field, Muneng, Probolinggo, Indonesia. A split-plot experimental field design was used with 2 factors, namely drought treatments at growth stage (Vegetative/P1, Reproductive/ P2, Generative/P3, and Control/P0), and varieties (Jatiluhur/V1, IPB9G/V2, IPB 3S/V3, Hipa 19/V4, Inpari-17/ V5, Mekongga/V6, Mentik Wangi/V7, Ciherang/V8). Canopy temperature data were then obtained using FLUKE 574 Infrared Thermometer, while images were taken with an RGB camera (Zenmuse X5) attached to Drone DJI Inspire I. The images were taken twice during the treatment (4 DAT and 15 DAT), followed by analysis using QGIS 2.18 and ImageJ. The results showed that RGB aerial images by UAV could be used in agricultural insurance in Indonesia, and similar countries around the world. Although the effect on yield needed to be evaluated, quick assessment by UAV was still an effective tool. In addition, drought damage evaluation through canopy color was better than canopy coverage in terms of analysis. The conversion from RGB to Lab color space increased the determination coefficient in multiple regression of color values against temperature difference (Tc-Ta).
Response of Growth and Yield of "IPB 9G" Rice to The Application of NPK and Biofertilizers Manullang, Frisca Anggriani; Lubis, Iskandar; Munif Ghulamahdi
Journal of Tropical Crop Science Vol. 12 No. 01 (2025): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.12.01.70-76

Abstract

Rice is a staple food crop that is challenging to replace with alternative crops. Strategies that balance high yields with environmental sustainability are crucial to enhance rice production. One such approach is integrating organic, biological, and chemical fertilizers. This study aimed to evaluate the effects of combining these fertilizers on the growth and yield of "IPB 9G" rice. The experiment was conducted at the IPB experimental farm in Cikabayan, Bogor, Indonesia, from March to June 2024, using a randomized complete block design with two factors and three replications. Treatments included two doses of NPK fertilizer (100% and 50% of the recommended dose) and five combinations of organic and biofertilizers: Azotobacter sp., Azotobacter sp. + Pseudomonas sp., humic acid, PGPR (Plant Growth-Promoting Rhizobacteria), and a combination of Azotobacter sp. + Pseudomonas sp. + humic acid + PGPR. Parameters observed included leaf area, root volume, shoot dry weight, and yield components such as the number of panicles, 1000-grain weight, and the number of grains per panicle. The results demonstrated a significant interaction between NPK dosage and organic-biofertilizer combinations on plant growth and yield. Notably, applying 50% of the recommended NPK dose combined with Azotobacter sp. + Pseudomonas sp. produced comparable or superior yields to the full NPK dose. These findings highlight the potential of reducing chemical fertilizer usage by incorporating biofertilizers, offering an environmentally sustainable strategy for rice cultivation.
Agribusiness System Of Pomelo Citrus In Pangkajene And Kepulauan Regency Nur Fa'izah Zainal; Khursatul Munibah; Iskandar Lubis
SOCA: Jurnal Sosial Ekonomi Pertanian Vol 18 No 3 (2024)
Publisher : Program Studi Agribisnis, Fakultas Pertanian, Universitas Udayana Jalan PB.Sudirman Denpasar, Bali, Indonesia. Telp: (0361) 223544 Email: soca@unud.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SOCA.2024.v18.i03.p04

Abstract

Pomelo citrus is a leading commodity in Pangkajene and Kepulauan Regency (Pangkep), yet its production has declined in recent years. The decline in pomelo production and productivity is suspected to be due to an inadequate agribusiness system. This study aims to analyze the agribusiness system in order to enhance the effectiveness of pomelo orchard management. Respondents were selected using purposive sampling, comprising 47 farmers spread across several farmer groups. Interviews were conducted with farmers and buyers, while questionnaires were administered to farmers, collect, and pomelo traders. The analysis included farm business analysis to determine the R/C ratio, marketing margin analysis, and farmer’s share analysis using Microsoft Excel. The results showed that Ma’rang District possesses the most comprehensive subsystems compared to other districts, consisting of input subsystem, production/farming subsystem, agricultural product processing subsystem, marketing subsystem, and support subsystem. The R/C ratio analysis indicates that farming in Ma’rang (1.39), Labakkang (2.47), and Segeri (1.86) remains economically feasible. Five marketing chains were identified, with Marketing Chain 5 (farmer–consumer) being the most efficient, and Marketing Chain 4 (farmer–middleman–trader–consumer) the least profitable. The agribusiness system serves as a guide to enhance the efficiency and effectiveness of government efforts in developing and sustaining pomelo productivity as a flagship commodity in Pangkep Regency.
Nutrient Uptake of Paddy with Peat Humic Substance Application on Tidal Swamp Yartiwi, Yartiwi; Ghulamahdi, Munif; Sulistyono, Eko; Lubis, Iskandar; Sastro, Yudi
AGRIVITA Journal of Agricultural Science Vol 47, No 2 (2025)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v47i2.3889

Abstract

Numerous initiatives were carried out to enhance rice production in swampy areas, which required the implementation of suitable technology. The use of adaptive variety, soil, and water management have been reported as the main keys to agricultural culture on tidal swamps. Therefore, this study was conducted to analyze the effect of several levels of substance peat humic application on the growth and yield of rice in tidal swamps. A completely randomized design was also used with two factors and four replications between March to June 2022, in Karya Bakti, Rantau Rasau sub-district of Tanjabtim District, Jambi Province. The first factor was varieties IR-64 and Inpara-4, while the second was the use of humic substance in peat consisting of 0 g/plant, 0.04 g/plant, 0.08 g/plant, and 0.12 g/plant. The cultivation process included the planting of paddy seeds within buckets containing 10 kg of soil. The result showed that the optimal yield of rice varieties IR-64 and Inpara-4, when subjected to peat humic substance in saturated soil culture, was achieved at 0.12 g/plant. This was substantiated by the enhanced uptake of essential nutrients such as N, P, and K in the plants, resulting in superior plant biomass compared to other concentration levels.
Pengaruh Pemupukan Urea dan Varietas pada Tanaman Jagung (Zea mays L.) terhadap Produksi Biomassa dan Biji Fahmi, Muhammad Rasyid Noor; Lubis, Iskandar; Purnamawati, Heni
Buletin Agrohorti Vol. 13 No. 1 (2025): Buletin Agrohorti
Publisher : Departemen Agronomi dan Hortikultura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrob.v13i1.60720

Abstract

Jagung merupakan tanaman pangan yang mempunyai peran strategis dalam pembangunan pertanian dan perekonomian nasional. Produktivitas jagung sangat ditentukan oleh mutu genetik varietas yang ditanam dan pemupukan yang tepat. Kegiatan penelitian ini bertujuan mengetahui pengaruh pemupukan berbagai dosis pupuk urea terhadap dua varietas jagung yang ditanam melalui produksi biomassa dan biji. Penelitian dilakukan pada Januari hingga Mei 2023 di Kebun Percobaan Leuwikopo Departemen Agronomi dan Hortikultura, Institut Pertanian Bogor, Dramaga, Bogor, Jawa Barat. Penelitian dilaksanakan menggunakan rancangan petak terbagi dalam rancangan kelompok lengkap teracak dengan tiga kali ulangan. Perlakuan terdiri dari 2 faktor yaitu varietas dan dosis pupuk urea. Varietas sebagai petak utama dan dosis pupuk urea sebagai anak petak. Dua varietas jagung, BISI-18 (hibrida) dan Bisma (komposit) ditanam dan dipupuk dengan dosis urea 0, 175, 350, dan 525 kg ha-1. Peningkatan dosis urea hingga 525 kg ha-1 secara linier meningkatkan total bobot kering, bobot tongkol dengan kelobot, bobot tongkol tanpa kelobot, diameter tongkol, bobot biji per tongkol, dan bobot biji per plot. Tinggi tanaman, jumlah daun, diameter batang, panjang tongkol, dan nilai SPAD menunjukkan respons kuadratik dengan dosis Urea optimum masing-masing 461.25; 435; 350; 435 dan 518 kg ha-1. Dosis urea 439.25 kg ha-1 merupakan dosis optimum untuk mencapai produktivitas tinggi pada kedua varietas tersebut. Kata kunci: bobot tongkol, diameter tongkol, dosis optimum, produktivitas, total bobot kering
Population of vector and tungro disease incidence at dosage of nitrogen fertilizer in rice field Gunawan, Achmad; Purwono; Lubis, Iskandar; Widiarta, I Nyoman; Suwitono, Bayu
Jurnal AGRO Vol. 12 No. 1 (2025)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/j.agro.45232

Abstract

One of the biotic threats that can reduce rice yield is tungro disease. This disease is spread with green leafhopper (Nephotettix virescens) vector. The population density of leafhoppers is one of the factors contributing to the increased incidence of tungro. Excessive nitrogen used in crop cultivation, especially rice, has been known to impact the population dynamics of insect pests. This study aims to determine the population development of green leafhoppers at different nitrogen doses. The study was conducted at the Muara Experimental Field, Bogor. The experimental treatment used three rice varieties representing susceptible varieties, resistant to green leafhoppers and resistant to tungro virus (Ciherang, IR64 and Inpari 36 Lanrang) and four levels of fertilization doses (without additional urea, Urea 250 kg ha-1, 350 kg ha-1 and 500 kg ha-1). The experiment used Split Plot design with three replication. The insect population in the field was found at the beginning of the observation and the peak of insect population density occurred at 6 WAP observationsVariety has a significant effect on insect vector population density and plant growth and yield in the field. The population density of green leafhoppers was higher in the Ciherang and IR 64 varieties than in the Inpari 36 Lanrang variety. Fertilization doses had no significant effect on the population of green leafhopper insects in the field except in the nymph phase in fertilization without the addition of urea and had no effect on growth and yield except on the number of tillers. The combination of resistant varieties and fertilization without the addition of urea reduced the population density of green.   ABSTRAK Cekaman biotik yang dapat menurunkan hasil padi salah satunya penyakit tungro. Penyakit ini disebarkan oleh vektor wereng hijau (Nephotettix virescens). Kepadatan populasi wereng menjadi salah satu faktor penyebab meningkatnya keberadaan penyakit tungro. Penggunaan nitrogen yang berlebihan dalam budidaya tanaman, terutama padi, telah diketahui berdampak pada dinamika populasi serangga hama. Penelitian ini bertujuan untuk mengetahui perkembangan populasi wereng hijau pada pemberian dosis nitrogen berbeda.Penelitian dilakukan di Kebun Percobaan Muara, Bogor. Perlakuan percobaan mengunakan tiga varietas padi yang mewakili varietas rentan, tahan wereng hijau dan tahan virus tungro (Ciherang, IR64 dan Inpari 36 Lanrang) dan lima taraf dosis pemupukan (tanpa tambahan pupuk urea, Pupuk Urea 250 kg ha-1, 300 kg ha-1 dan 500 kg ha-1). Percobaan mengunakan rancanngan Split Plot dalam RAK dengan tiga kali ulangan. Populasi serangga di lapangan ditemukan diawal pengamatan dan puncak kepadatan populasi serangga terjadi pada pengamatan 6 MST. Varietas berpengaruh nyata terhadap kepadatan populasi serangga vektor, pertumbuhan dan hasil tanaman di lapangan. Kepadatan populasi wereng hijau lebih tinggi pada pertanaman varietas Ciherang dan IR 64 dibandingkan pada varietas Inpari 36 Lanrang. Dosis pemupukan tidak berpengaruh nyata terhadap populasi serangga wereng hijau di lapangan kecuali pada fase nimfa pada pemupukan tanpa penambahan urea dan tidak berpengaruh terhadap pertumbuhan dan hasil kecuali pada jumlah anakan. Kombinasi varietas tahan dan pemupukan tanpa penambahan urea mengurangi kepadatan populasi wereng hijau menyebarkan virus tungro.   Kata kunci: Populasi, pupuk nitrogen, wereng hijau
Analysis of drought stress tolerance in doubled haploid lines of green super rice at the vegetative stage Nurhidayah, Siti; Purwoko, Bambang Sapta; Dewi, Iswari Saraswati; Suwarno, Willy Bayuardi; Lubis, Iskandar; Hadianto, Wira; Munandar, Arief
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 53 No. 2 (2025): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24831/jai.v53i2.63893

Abstract

Current climate change has caused drought in various regions, which has decreased rice yields. Green super rice (GSR) has the characteristic of being tolerant to water limitation. GSR lines were bred through anther culture technique to obtain doubled haploid (DH) plants. This study aimed to analyze the response of DH GSR lines to drought stress at the vegetative stage and identify potential lines based on the weighted selection index. The experiment was arranged in a randomized complete block design with three replications. The materials used consisted of twenty DH lines, Inpari 42 Agritan GSR, and Inpari 18 as check varieties, Salumpikit as a drought-tolerant check, and IR 20 as a drought-sensitive check. Qualitative data were analyzed using the non-parametric Friedman test. The result showed different responses among the lines for leaf rolling, leaf drying, and recovery ability. Line SN14 exhibited moderate leaf drying and showed improvement to mild tolerance during the recovery phase. Nine lines (SN12, 14, 32, 40, 51, 57, 58, 59, and 60) were selected using a selection index based on leaf rolling, leaf drying, and recovery ability. These lines can be further tested for drought tolerance tests until the reproductive stage, and the tolerant lines could be useful for future development. Keywords: abiotic stress; anther culture; climate change; selection index; water limitation
Co-Authors , Yudiwanti , Yudiwanti - Suwarno - Suwarno - Triwidiyati . Suwarno Achmad Gunawan Achmad Gunawan Adi, Defiyanto Djami Adinda Soraya Nasution Afifah, Septi Nur Ahmad Ghozi Manshuri Ahmad Ghozi Mansyuri AHMAD JUNAEDI Ahmad Junaidi Ahmad Junaidi Ahmad Rifqi Fauzi Ahmad Zamzami Aidi Noor Ananda Diah Oktaviani and Koki Homma Andrea Emma Pravitasari, Andrea Emma Arinta, Kistia Asep Hambali Bagus Arrasyid Bambang Sapta Purwoko Boedi Tjahjono Butar Butar, Dewi Valentina Chiharu Hongo, Chiharu dan Yoshinori Yamamoto Danner Sagala Dede Kismantoro Deni Suhendar Desta Wirnas Dewi Valentina Butar Butar Didi Darmadi, Didi Didy Sopandie Dini Gustiningsih Eko Sulistyono Endah Retno Palupi Erika Santi Faadhilah, Fajar Fahmi, Muhammad Rasyid Noor Faisal Faisal Faqih Udin Fathnoer, Veronica Faza Yasmin Saidah Firdaus Puja Santana Fitratunnisah Fitriyah Nurul Ghulamhdi, Munif Gunawan, Achmad HAJRIAL ASWIDINNOOR Hambali, Asep Harahap, Ade Tika Sari Hirokazu Higuchi Hiroshi Ehara Hiroshi Ehara Hiroshi Ehara Homma, Koki I Nyoman Widiarta I Nyoman Widiarta I Nyoman Widiarta Ian Surya Fitra Atmaja ian Surya Fitra Atmaja Ilham iwan Tona Iswari Saraswati Dewi Jayawarsa, A.A. Ketut Khairil Anwar Khursatul Munibah Kistia Arinta Koki Homma Kurniawan, Dede Yudo Laili Munawaroh Luh Made Indah Sri Handari Adiputra Luh Putu Ratna Sundari M A Chozin M A Chozin Maisura Maisura Manullang, Frisca Anggriani Marlinda, Barirah Maudy Susanti Maulana, Arlingga Ichwan Megayani Sri Rahayu Miftakhul Bakhrir Rozaq Khamid Muhamad Ahmad Chozin Muhamad Syukur Muhammad Ahmad Chozin Muhammad Firdaus Lubis Muhammad Firdaus Lubis Muhammad Hasjim Bintoro Djoefrie Hasjim Bintoro Djoefrie Mujio Munandar, Arief Munif Ghulamahdi Novita Niken Putri Ulayyah Nur Fa'izah Zainal Ospa Pea Yuanita Meishanti Purwono Purwono Purwono Purwono Rakhman Adhiatma Renica Nurhermawati Riska Firotul Hidayah Roedhy Poerwanto SANTUN R.P SITORUS Septi Nur Afifah Siti Nurhidayah Siti Ria Chaerunisa Sitta Mujahid Sopandie, Didie Sri Astuti Rais Sri Astuti Rais Sri Purwanti Sugiyanta Supijatno Suwarno - Suwarto Suwitono, Bayu Tatsuhiko Shiraiwa Tatsuhiko Shiraiwa Tatsuhiko Shiraiwa Titi Candra Sunarti Titiek S. Yuliani Tomohiro Kondo Tri Koesoemaningtyas Trikoesoemaningtyas Widiatmaka Willy Bayuardi Suwarno Willy Monika Yohansyah Willy Monika Yohansyah Wira Hadianto, Wira Yartiwi, Yartiwi Yati Astuti Yudi Sastro Yuti Giamerti, Yuti