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All Journal Journal of Tropical Soils AGRIVITA, Journal of Agricultural Science Jurnal Agro Planta Tropika JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Jurnal Penelitian Pertanian Terapan Jurnal Komputasi Jurnal Agrotek Tropika TheJournalish: Social and Government Jurnal Agrotropika Fruitset Sains : Jurnal Pertanian Agroteknologi Jurnal Inovasi Pembangunan Open Science and Technology Jurnal Pengabdian Fakultas Pertanian Universitas Lampung
Paul Benyamin Timotiwu
Fakultas Pertanian Universitas Lampung
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Transportation Other

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Sistem Inventarisasi Data Global dan Sentra Inovasi Teknologi Pada UPT LT-SIT Universitas Lampung Berbasis Web julia, alika nera giriyana julia; Timotiwu, Paul Benyamin
Jurnal Komputasi Vol 5, No 2 (2017)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/komputasi.v5i2.1521

Abstract

Penelitian ini dilakukan untuk membuat suatu sistem inventarisasi UPT yang mampu membantu pihak UPT LT-SIT mempermudah pendataan dan pengecekan barang di dalam laboratorium. Data penelitian ini terdiri dari data menu users,  bahan kimia, alat laboratorium, jasa analisis, dokumen mutu, data customer dan data pengunjung. Data user digunakan untuk menguji sistem siapakah yang dapat melakukan login pada sistem tersebut. Hasil penelitian menunjukkan bahwa: (1) Pengujian fungsional dengan menggunakan metode Black Box Equivalence Partitioning (EP) mendapatkan hasil sesuai dengan yang diharapkan pada skenario uji di setiap kelas uji. (2) Hasil dari pengujian sistem dengan menggunakan metode ini dapat disimpulkan bahwa secara keseluruhan sistem ini sudah berjalan dengan baik dan berhasil secara keseluruhan. (3) Dalam pengujian ini ditujukan untuk mengetahui fungsional sistem apakah sudah berjalan sesuai fungsi atau belum. Sistem ini digunakan untuk membantu kinerja user pada UPT LT-SIT yang mengolah data, khususnya ketersediaan barang. (4) Dengan aplikasi sistem informasi inventaris pengadaan barang yang telah dikembangkan setiap user yang bertanggung jawab dapat mengetahui aset apa saja yang dimiliki oleh UPT LT-SIT Universitas Lampung, sehingga akan muncul rasa tanggung jawab untuk merawat data dan barang.  Kata Kunci : Inventarisasi, pengujian, sistem , UPT,  barang.
Pengaruh priming terhadap vigor benih kedelai (Glycine max (L.) Merril.) yang dikecambahkan pada media dengan cekaman alumunium Agustiansyah Agustiansyah; Paul B Timotiwu; Nabila Lutfiah
Jurnal Agro Vol 8, No 2 (2021)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/13458

Abstract

Kandungan aluminium yang tinggi pada tanah Ultisol merupakan salah satu masalah utama dalam budidaya tanaman kedelai mulai dari fase perkecambahan hingga pertumbuhan tanaman. Perlakuan priming pada benih diyakini mampu memperbaiki perkecambahan pada lingkungan yang kurang menguntungkan. Penelitian dilakukan untuk mengetahui pengaruh priming pada perkecambahan benih kedelai yang dikecambahkan dalam media masam dan mengandung aluminium. Penelitian disusun dalam Rancangan Acak Lengkap (RAL) pola faktorial. Faktor pertama adalah jenis priming : tanpa priming, H2O (air), KNO3 1%, KNO3 2%, GA3 50 ppm, GA3 100 ppm, dan PEG 6000 7,5%. Faktor kedua adalah varietas kedelai yaitu: Anjasmoro, Burangrang, dan Grobogan. Data dianalisis sidik ragamnya dan dilanjutkan dengan uji Beda Nyata Jujur (BNJ) 5% menggunakan program statistika R Studio. Hasil penelitian menunjukkan priming PEG 7,5% dan varietas Burangrang secara mandiri merupakan perlakuan terbaik untuk meningkatkan vigor benih kedelai berdasarkan variabel waktu muncul kecambah, kecepatan perkecambahan, dan panjang hipokotil. Implikasi penelitian ini adalah PEG 7,5% dapat digunakan untuk perbaikan perkecambahan pada tanah masam dengan kandungan aluminium yang relatif tinggi. High aluminium content in Ultisol is the main problem in soybean cultivation from germination to planting growth phases.Priming treatment is believed to improve seed germination in a poor-growing environment. This study aimed to determine the effect of priming of soybean seeds germinated under acid medium and aluminium stress. The experimental design used was Completely Randomized Design (CRD) with factorial pattern. The first factor was priming type : no priming, H2O (water), 1% KNO3, 2% KNO3, 50 ppm GA3, 100 ppm GA3, and 7.5% PEG 6000. The second factor was soybean variety : Anjasmoro, Burangrang, and Grobogan.  The data obtained were analyzed using the R Studio statistic program with a 5% HSD test. The study resulted that each PEG 7.5% priming and Burangrang  variety independently was the best in increasing soybean seed vigor based on sprout time emergence, germination speed and hypocotyl length. This research implicates that PEG 7.5% can be used to improve seed germination on acid soils with high aluminium content. 
Growth and Yield Responses of Four Soybean (Glycine max (l.) Merrill.) Cultivars to Different Methods of NPK Fertilizer Application Paul Benyamin Timotiwu; Yayuk Nurmiaty; Eko Pramono; Siti Maysaroh
PLANTA TROPIKA: Jurnal Agrosains (Journal of Agro Science) Vol 8, No 1 (2020)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.2020.112.39-43

Abstract

This study aimed to determine the growth and yield responses of four soybean cultivars to different methods of N, P, and K fertilizers application. The methods consisted of one-time application (at the planting time) and split application (at the planting time and during the initial stage of pod formation (R3 stage)). Four superiors soybean cultivars were used, namely Anjasmoro, Grobogan, Dena-1, and Argomulyo. One-time fertilizers application resulted in an increased plant height compared to split fertilizers application. In contrast, the split fertilizers application led to a higher yield of soybeans indicated by the higher total number of pods, number of filled pods, 100-grain weight, and seed dry weight. Cv. Anjasmoro produced higher growth and yield than cv. Grobogan, Dena-1, and Argomulyo. It also produced the highest yield compared to other cultivars. Meanwhile, cv. Argomulyo produced the lowest yield in both fertilization methods. Based on the soil analysis after harvest, the nutrient content of K in the soil was higher than before planting in both fertilization methods. In addition, the split fertilizers application led to higher utilization of P in the soil after harvest.
The Growth of Oil Palm (Elaeis guineensis Jacq.) Seedlings with the Application of Different Arbuscular Mycorrhiza Fungi and Various Phosphorous Dosages Krisnarini Krisnarini; Maria Viva Rini; Paul Benyamin Timotiwu
JOURNAL OF TROPICAL SOILS Vol 23, No 3: September 2018
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2018.v23i3.117-124

Abstract

The effectiveness of Arbuscular Mycorrhiza Fungi (AMF) colonization depends on the type of AMF, plant species and phosphorus fertilization.  The aims of this study were to determine: the best type of AMF and the appropriate dosage of P fertilizer for the growth of oil palm seedlings, and whether the oil palm seedling responses to the application of AMF type is determined by the dosage of phosphorus applied. The experiment was arranged in a Randomized Complete Block Design (RCBD) with two factors and 5 replications. The first factor was the types of AMF (m), consisting of without mycorrhiza inoculation (m0), Gigaspora sp. MV16 isolate (m1), Glomus sp. MV7 isolate (m2), Gigaspora sp. MV16 isolate + Glomus sp. MV7 (m3) isolate.  The second factor was phosphorus fertilization (SP-36), consisting of 3 levels: 1/3 recommended dosage (p1), 2/3 recommended dosage (p2), full recommended dosage (p3). The results showed that the application of all AMF types resulted in the same effects on the growth of oil palm seedlings, however the seedling growth in the inoculated plants were better than in uninoculated plants (control). The application of the recommended dosage of P fertilizer produced the highest seedling growth. The response of seedlings to the application of AMF type was not determined by doses of phosphorus fertilizer applied.
Penerapan Pupuk Urea pada Tumpangsari Jagung “Double Row” dan Kacang Tanah Terhadap Pertumbuhan dan Hasil Jagung (Zea mays L.) Margaretha S. Gadmor; Niar Nurmauli; Paul B. Timotiwu; Herawati Hamim
Jurnal Penelitian Pertanian Terapan Vol 17 No 2 (2017)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (596.417 KB) | DOI: 10.25181/jppt.v17i2.287

Abstract

The study aims to determine: (1) response growth and result of corn and peanut on monoculture and intercropping; (2) an optimal urea doze on growth and result of corn and peanut. Research did from July to November 2014 in Laboratory of Integrated, Faculty of Agriculture, University of Lampung. The research used complete Random Group Design with Triple Multiply. Homogenity of variance was tested by Bartlett test. Separation of median is done by using the test Polynomial Orthogonal with real level 5 %. The result showed that picking of corn per hectar for monoculture higher than intercropping but the other variable wasn’t really different. Peanut monoculture higher than intercropping for number of pods, weight of 100 grains, and production of seed per hectar but for plant height and greening level, pattern levels of intercropping higher than monoculture, and there were not find an optimal urea doze for corn on intercropping of corn “double row” and peanut. Keywords : corn, intercropping, peanuts, urea
Analisis Jalur Respons Hasil Kedelai (Glycine max (L.) Merr.) Varietas Unggul Nasional Terhadap Dua Cara Pemberian Kombinasi Pupuk Npk Paul Benyamin Timotiwu; Yayuk Nurmiaty; Eko Pramono; Yosep Riando Kusuma
Jurnal Penelitian Pertanian Terapan Vol 18 No 2 (2018)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v18i2.1070

Abstract

Path analysis is one of the causal analysis and is an advanced analysis of correlation and regression studies. Path analysis is the development of correlation analysis that explains the closeness of the relationship between characters by way of outlining correlation coefficients into direct and indirect effects. This research was aimed to obtain information on the direct and indirect effects of agronomic characteristics on the production. This research uses Siti Maysaroh research data entitled “The Effect of NPK Fertilizer on the Growth and Production of Four Soybean Varieties (Glycine max (L.) Merr)”. The data that have been obtained will then be analyzed using path analysis method. Data is analyzed using Microsoft excel program. The results of this study show the difference between the two models, namely: on the way of fertilizer feeding two variables that directly affect the yield of soybean production is the weight of 100 grains, whereas on the way of giving a one-time fertilizer variable that directly affects the yield of soybean production is the number of pod.
Efisiensi Pupuk Urea Dan Lahan Dalam Meningkatkan Hasil Jagung “Double Row” Pada Pola Tanam Tumpang Sari Dengan Kacang Tanah Andrestu Kesuma; Niar Nurmauli; Paul B. Timotiwu; Herawati Hamim
Jurnal Penelitian Pertanian Terapan Vol 18 No 3 (2018)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v18i3.1501

Abstract

Mixed cropping of corn and peanut in “double row” is expected increase efficiency of ureafertilizing and efficiency of land utilization. This research aimed to evaluate the efficiency ofthe urea fertilizing on corn production and to evaluate the efficiency of land utilization in“double row” mixed with peanut. The research conducted in Field of Laboratory LapangTerpadu and Laboratory Ilmu Tanam Faculty of Agriculture University of Lampung fromJuly to October 2014. The experiment used Complete block design with nine treatments andthree replications. The results showed that intercropping of corn “double row” and peanutsdid not affect the efficiency of urea. However, the cropping system increased land utilization.The value of land use efficiency based on yield per hectare has the highest yield at a dose of300 kg urea/ ha that is equal to 1,76. While giving urea fertilizer at dose 0, 50, 100, 150,200, and 250 kg/ ha shows the efficiency of land use amounted to 1,18; 1,20; 1,31; 1,53;1,66; and 1,44.
Effect of Priming on Vigor of Germinated Chili (Capsicum annum L.) Seeds in Aluminium Stress Conditions Agustiansyah Agustiansyah; P. B. Timotiwu; E. Pramono; M. Maryeta
Jurnal Penelitian Pertanian Terapan Vol 21 No 3 (2021)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v21i3.2133

Abstract

Seed germination in ultisol is a problem. Ultisol has a low pH, poor in nutrients and organic matter, and high Al content. The low physiological quality of seeds is also a limiting factor. The purpose of this study was to determine the effect of priming on the seed vigor of two chili varieties whose seeds have expired and have not expired. This experiment consisted of 2 experiments, namely Experiment 1, which used seeds that had expired (deteriorating), and Experiment II, which used seeds that had not expired (non-deteriorating). This study was structured using a completely randomized design (CRD) which was repeated three times. This experiment is factorial. The first factor is priming, consisting of five levels: control, immersion in water, 30% PEG, 50 ppm GA3, and 1% KNO3. At the same time, the second factor in the first experiment was the seeds of the Tanjung 2 and Kencana varieties that had expired (deteriorating). In the second experiment, the second factor was the seeds of the Tanjung 2 and Kencana varieties that had not expired (non-deteriorating). The data obtained were analyzed using the R statistic program with a 5% HSD test. The results showed that priming with 50 ppm GA3 and 1% KNO3 increased the vigor of seeds that had expired (deteriorating). Meanwhile, priming with water and 1% KNO3 increased the vigor of seeds that had not yet expired (deterioration). The Kencana variety has a higher vigor than the Tanjung 2 variety on expired seeds. In seeds that have not yet expired, both varieties have the same good vigor.
THE EFFECT OF SILICA AND MANGANESE APLICATION ON RICE GROWTH AND YIELD Paul Benyamin Timotiwu; Maya Maeistia Dewi
AGRIVITA, Journal of Agricultural Science Vol 36, No 2 (2014)
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.v36i2.406

Abstract

The increasing demand of rice each year as the consequences of population growth increases rice production in Indonesia.  The increasing of growth and yield of rice can be achieved through micro elementapplication.  The application of silica and manganese through the leaves can be directly absorbed by the rice plants for growth and photosynthetic process.  It is beneficial to produce a higher rice yield.  This study aimed to determine the effect of the increasing of silica and manganese concentration, and their interaction on plant growth and yield of rice.  The green house research was conducted in the Seed and Plant Breeding Laboratory, Faculty of Agriculture, University of Lampung, June–September 2013.  The treatments were arranged in a 5x2 factorial [five concentrations of Si (0, 50, 100, 150, and 200 ppm), with and without (5ppm) of Mn] in a randomized complete block design (RCBD) with three replication.  Orthogonal contrast and polynomial analyses were used to find the effect of Mn, Si, and their interaction.  The results showed that increasing concentration of Si increased the greenness of leaves, number of productive tillers, weight of dry matter, number of filled grains, and decreased angle of the tiller and number of empty grains.  The application of Mn increased the growth and yield of rice, angle of tiller and number of empty grains.  In addition the effect of Mn was depended on the level of Si concentration.  Application of Mn with increasing Si concentration increased of plant growth and yield of rice.Key words:  rice, silica, manganese
Analisis Keragaan Jagung Manis Seleksi Lini Bersari Bebas Sebagai Alternatif Terhadap Seleksi Hibrida F1 Saiful Hikam; Sri Wahyuni; Paul B. Timotiwu
Inovasi Pembangunan : Jurnal Kelitbangan Vol 4 No 01 (2016): April 2016
Publisher : Balitbangda Provinsi Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (644.391 KB)

Abstract

Plant breeding is done to get a good genetic in order to adapt with environment. F1 hybrid varieties and pollinated/OP is the result of plant breeding, which F1 hybrids are considered superior to OP. This study aimed to get a line of open pollinated sweet corn (OP) equivalent in performance to hybrids corn (F1). Assembling the sweet corn line segregating and bi- color with yellow rounded proportions 9 : 3 wrinkled yellow : 3 round white : 1 wrinkled white and 3 round : 1 wrinkled, from the Self six lines of sweet corn. Calculating the amount of genetic diversity and broad -sense heritability for long-term plant breeding program . This study randomized Complete Block Design Group. The data obtained are tested by Barlett and Levene s to homogeneity between treatments. Furthermore, the data will be analyzed by analysis of variance to obtain KNT hopes to infer the genetic diversity (σ2g) , broad -sense heritability (h2BS) , and the coefficient of genetic diversity (KKG). Line performance ranking is done by testing HSD. Boxplot analysis performed on the data to compare with standard commercial corn. Segregation of color and form of seeds tested with Test Goodness of Fit using the chi –squared. These results indicate that the achievement of the objectives that the sweet corn line SE and SU quivalent in performance to F1 hybrids corn. Achieving the goal of producing sweet corn segregation ( sweet seed in the form of round seeds and bi colors) in a single cob of sweet corn on the 6th line of corn grown. Genetic diversity and heritability proved in character broke anther , leaf number ,the number of male flowers, weight of 100 grains, grain weight pertongkol and production per m2 so the selection for plant breeding can be done.
Co-Authors , Agustiansyah Adhinugraha, Qudus Sabha Agus Karyanto Agustiansyah Agustiansyah Agustiansyah Agustiansyah Agustiansyah Agustiansyah Agustiansyah Agustiansyah Ali Rahmat Andrestu Kesuma Anjani Pratiwi Ardian Ardian B. Suprayogi Basoeki, Tjipto R. Cahya Adi Pranata Desis Kurniyati DIDIK PURWANTO Dolly Saputra Saputra Dwi Rahayu E. Pramono Eko Pramono Eko Pramono Eko Pramono Eko Pramono Eko Pramono Eliza Fitria erlinda citra dewi Ermawati Ermawati Franciscus Xaverius Susilo, Franciscus Xaverius Ginting, Yohannes Cahya Gusti Ayu Ningrum Hadi, M Syamsoel Herawati Hamim Herawati Hamim Herawati Hamim Hutagalung, Fransio julia, alika nera giriyana julia Krisnarini, Krisnarini Kukuh Setiawan Kusuma, Yosep Riando Kuswanta Futas Hidayat M. Maryeta Maharani, Devi Manik, Tumiar Katarina B Margaretha S. Gadmor Margaretha S. Gadmor, Margaretha S. Maria Viva Rini Maya Maeistia Dewi Maya Maeistia Dewi Maysaroh, Siti Muhammad Kamal Nabila Lutfiah Nelita Aryani Niar Nurmauli Niar Nurmauli Niar Nurmauli, Niar Noly Agustin Nurmiaty, Yayuk Pramono, Eko Pramudya, Galuh M Purnomo Purnomo Ria Putri Ridwansyah, Budi Rizki Amelia Rusdi Sion Saiful Hikam Saiful Hikam Saiful Hikam Saiful Hikam Saiful Hikam, Saiful Setyo Dwi Utomo Shinta Anisya Siti Maysaroh Sri Wahyuni Tumiar K. Manik Tumiar Katarina Manik Wawan Abdullah Setiawan Yafizham Yafizham Yayuk Nurmiaty Yayuk Nurmiaty Yayuk Nurmiaty Yohanes Cahya Ginting, Yohanes Cahya Yohannes Cahya Ginting Yosep Riando Kusuma Zelwia Tiasmitha Astorhie