Garuda - Garba Rujukan Digital

p-Index From 2019 - 2024

2.177

P-Index

This Author published in this journals

All Journal Journal of Tropical Soils AGRIVITA, Journal of Agricultural Science Jurnal Agro Jurnal Planta Tropika JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Jurnal Penelitian Pertanian Terapan Jurnal Komputasi Jurnal Agrotek Tropika TheJournalish: Social and Government Jurnal Agrotropika Jurnal Inovasi Pembangunan Open Science and Technology AMMA : Jurnal Pengabdian Masyarakat

Paul Benyamin Timotiwu

Fakultas Pertanian Universitas Lampung

Author-ID : 341206

Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry 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 Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Transportation Other

Published : 35 Documents Claim Missing Document

Claim Missing Document

Articles

1 2 3 4

THE EFFECT OF SILICA AND MANGANESE APLICATION ON RICE GROWTH AND YIELD Timotiwu, Paul Benyamin; Dewi, Maya Maeistia
AGRIVITA, Journal of Agricultural Science Vol 36, No 2 (2014)
Publisher : Faculty of Agriculture University of Brawijaya and Indonesian Agronomic Assossiation

Show Abstract | Download Original | Original Source | Check in Google Scholar

The increasing demand of rice each year as the consequences of population growth increases rice production in Indonesia.Â The increasing of growth and yield of rice can be achieved through micro elementapplication. Â The application of silica and manganese through the leaves can be directly absorbed by the rice plants for growth and photosynthetic process.Â It is beneficial to produce a higher rice yield. Â 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.Â The green house research was conducted in the Seed and Plant Breeding Laboratory, Faculty of Agriculture, University of Lampung, JuneâSeptember 2013.Â 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.Â Orthogonal contrast and polynomial analyses were used to find the effect of Mn, Si, and their interaction. Â 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. Â The application of Mn increased the growth and yield of rice, angle of tiller and number of empty grains. Â In addition the effect of Mn was depended on the level of Si concentration.Â Application of Mn with increasing Si concentration increased of plant growth and yield of rice.Key words:Â rice, silica, manganese

EVALUASI SEGREGASI TRANSGRESIFQUANTITATIVE TRAIT LOCI (QTL) PADA TANAMAN PADI VARIETAS UNGGUL NASIONAL YANG DIGOGOORGANIKKAN Yosilia, Rani; Hikam, Saiful; Timotiwu, Paul Benyamin
Jurnal Agrotek Tropika Vol 2, No 1 (2014)
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Penelitian bertujuan untuk (1) menghitung besarnya ragam genetik dan heritabilitas broad-sense pada padi-padi tersebut; (2) mendapatkan varietas yang mampu digunakan sebagai tetua perakitan padi inbrida dan hibrida; (3) mendapatkan korelasi antar peubah yang mampu meningkatkan produksi sekaligus sebagai peubah pada seleksi tidak langsung. Penelitian disusun menggunakan rancangan perlakuan kuasi RTS (Rancangan Teracak Sempurna) karena dalam penelitian ini tidak memungkinkan untuk dilakukan pengulangan kelompok tetapi ulangan berada di dalam satu kelompok yang sama. Masing-masing kelompokulangan terdiri dari 9 sampel tanaman yang dibagi menjadi 3 ulangan dan masing-masing ulangan terdapat 3 tanaman.Selanjutnya dilakukan analisis ragam, data pengamatan diuji dengan uji Bartlett dan Levene untuk kehomogenan ragam.Bila hasil analisis uji pada analisis ragam nyata pada P < 0,01 atau 0,05 maka dilakukan pemeringkatan nilai tengah dengan uji Beda Nyata Jujur (BNJ).Pengujian dan analisis data menggunakan software Statistic Analysis System (SAS) 9.1 for windows.Besarnya ragam genetik dan heritabilitas broad-sense diduga berdasarkankuadrat nilai tengah (KNT) harapan pada analisis ragam dan rancangan percobaan.Hasil penelitian menunjukkan bahwa (1) semua peubah yang diamati mampu memberikan nilai ragam genetik dan heritabilitas broad-sense.(2) Varietas Sarinah-jumlahbulir dan Sarinah-jumlahanakan dapat dijadikan sebagai tetua untuk perakitan padi inbrida dan hibrida; (3) Jumlah bulir total berkorelasi dengan peningkatan produksi sehingga dapat dijadikan sebagai peubah pada seleksi tidak langsung.

Analisis Jalur Respons Hasil Kedelai (Glycine max (L.) Merr.) Varietas Unggul Nasional Terhadap Dua Cara Pemberian Kombinasi Pupuk Npk Timotiwu, Paul Benyamin; Nurmiaty, Yayuk; Pramono, Eko; Kusuma, Yosep Riando
Jurnal Penelitian Pertanian Terapan Vol 18, No 2 (2018)
Publisher : Politeknik Negeri Lampung.

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 variables that directly affect the yield of soybean production is the number of pod

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.

Penerapan Pupuk Urea pada Tumpangsari Jagung â€œDouble Rowâ€ dan Kacang Tanah Terhadap Pertumbuhan dan Hasil Jagung (Zea mays L.) Gadmor, Margaretha S.; Nurmauli, Niar; Timotiwu, Paul B.; Hamim, Herawati
Jurnal Penelitian Pertanian Terapan Vol 17, No 2 (2017)
Publisher : Politeknik Negeri Lampung.

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

ROLES OF CALCIUM AND MAGNESIUM AS SELECTION FACTORS IN SWEET CORN QUALITY IMPROVEMENT ON ACIDIC RED-YELLOW PODSOLIC SOIL Hikam, Saiful; Timotiwu, Paul B.
AGRIVITA, Journal of Agricultural Science Vol 38, No 2 (2016): JUNE
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.v38i2.552

The cultivation of sweet corn (Zea mays L. spp. saccharata {Sturt.} Bailey) on acidic red-yellow podsolic (RYP) soil in Lampung, Indonesia was hampered by the low fertility and pH of the soil.Â Soil amendment with Ca and Mg would improve growth and development of the sweet corn cultivars, as well as differentiating environments in selecting for adaptive cultivars. Aglime, dolomite, Portland cement, and a mixture of 3 aglime: 2 dolomite (w/w) were applied on LASS Yellow-Round (Y-R), LASS Yellow-wrinkle (Y-w), Bicolor and LAS Yellow-wrinkle (Y-w).Â The results indicated that the kinds of Ca and the doses apllication were capable to differentiate the sweet corn cultivars.Â Aglime 400 kg ha-1 was the best treatment to modify plant environment as selection factor followed by cement 400, dolomite 200 and aglime-dolomite mixture 400 kg ha-1. They improved the growth of the cultivars as well. The characters of interest of the cultivar had complied with those of commercial standard, except for plant height, ear diameter, and kernel-rows ear-1. However, since the genetic variation and broad-sense heritability values for those characters were essentially zero, the subsequent improvement would require genes from the outside populations.

CONTRIBUTIONS OF SEED PHYSICAL AND CHEMICAL CHARACTERS OF VARIOUS SORGHUM GENOTYPES (SORGHUM BICOLOR [L.] MOENCH.) TO DAMAGED SEED INDUCED BY WEEVIL (SITOPHILUS SP.) DURING STORAGE Pramono, Eko; Kamal, Muhammad; Susilo, Franciscus Xaverius; Timotiwu, Paul Benyamin
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 18, No 1 (2018): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Contributions of Seed Physical and Chemical Characters of Various Sorghum Genotypes (Sorghum bicolor [L.] Moench.) to Damaged Seed Induced by Weevil (Sitophilus sp.) During Storage. The percentage of damaged seeds due to feeding by Sitophilus sp. during storage varied among sorghum genotypes (Sorghum bicolor [L.] Moench.). Some researchers reported that the difference was influenced by the physical and chemical characters of the seed grains. This study aimed to determine the contribution of seed physical and chemical characters and their effect model on the percentage of damaged seeds due to weevil attack during storage. Measurement of damaged seeds was carried out on 34 sorghum genotypes after they were stored for four months under storage temperatures of 26 ºC and 18 ºC. Physical characters included seed hardness, weights of a thousand grains, pericarp thickness, and seed volume. Chemical characters of seeds included lipid, protein, carbohydrate, and tannin contents. Results of the study indicate that contribution of physical and chemical characters of sorghum seeds and their effect model on the percentage of damaged seeds due to weevil attack was different among storage under temperature of 26 ºC and under temperatures of 18 ºC.

GROWTH AND YIELD RESPONSES OF FOUR SOYBEAN (GLYCINE MAX (L.) MERRILL.) CULTIVARS TO DIFFERENT METHODS OF NPK FERTILIZER APPLICATION Timotiwu, Paul Benyamin; Nurmiaty, Yayuk; Pramono, Eko; Maysaroh, Siti
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

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.

PENGARUH DOSIS PUPUK NITROGEN, FOSFOR, DAN KALIUM TERHADAP PRODUKSI BENIH PADI VARIETAS MAYANG PADA TIGA LOKASI DI LAMPUNG UTARA Ridwansyah, Budi; Basoeki, Tjipto R.; Timotiwu, Paul B.; Agustiansyah, Agustiansyah
JURNAL AGROTROPIKA Vol 15, No 2 (2010): Agrotropika Vol.15 No.2 2010
Publisher : JURNAL AGROTROPIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (138.88 KB)

Fertilizer is one of the ways to improve cultural techniques for producing high quality of seed with high early vigor. The objectitive of N, P,and K nutrient in balanced quantity can improve productivity and quality of seed rice. His research was to know response of three doses of N, P, and K on growth, production, and quality of seed rice of Mayang variety on three locations on North Lampung, and see interaction of both factors. Treatment arrangement was factorial by randomized complete block design with three replications. Sub factor is fertilizer (P); there are low fertilizer dose (P1) is farmer fertilizer dose consist 200 kg/ha urea and 50 kg NPK/ha; middle fertilizer dose (P2) is recommended government dose consist 250 kg/ha urea, 100 kg Sp 18/ha, and 100 kg/ha KCl; and high dose (P3) is recommended dose for seed production consist 300 kg/ha urea, 150 kg/ha SP 18, and 150 kg/ha KCl. Mains factor is location, there are Ciamis-Sungkai Utara, Wonomarto-Kotabumi Utara, and Semuli Jaya-Abung Semuli. Homogenity of varian each treatment analyzed by Bartlett test and to see eaded model by Tukey test. If all assumption are completely, data will be continue analyzed with BNJ test at level 5%. Result of research showed that high dose fertilizer is can give growth and seed production better than low dose fertilizer, but nonsignificant with middle dose. The best location for seed production is Semuli and than Wonomarto, and Ciamis in the last position, but nothing interaction between different of dose and location.Key words: rice, Mayang viability, fertilizer

PENGARUH TINGKAT KERACUNAN ALUMUNIUM TERHADAP PERUBAHAN GULA YANG DIEKSUDASI OLEH PERAKARAN KEDELAI (GLYCINE MAX [L.] MERR.) Timotiwu, Paul Benyamin
JURNAL AGROTROPIKA Vol 15, No 1 (2010): Agrotropika Vol.15 No.1 2010
Publisher : JURNAL AGROTROPIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (211.183 KB)

Around 7 ? 30 % of photosynthate produced by plants was exuded through the plant roots. Compounds exuded were in forms of polysaccharides, polypeptides, enzymes, and several secondary metabolic compounds. The presence of aluminum may cause an obstruction on seedling growth and establishment and significantly relate with sugars excreted by the plant roots. The mechanisms of sugars excretion by the plants was one among several means of the plants to overcome environmental toxicity. This research intended to (1) find out kind of sugars exuded by the soybean roots when underwent an aluminum toxicity; and (2) understand the effects of the increase of aluminum concentration on sugars exuded by the soybean roots. The research utilized a technique of aeroponic mist system. The treatments were arranged in a 3X2 factorial; the first factor was the aluminum concentration consisted of 0, 0.5, and 1 mM AlCl3. The second factor was the soybean varieties which were Slamet variety recommended resistant to Al and Burangrang variety susceptible to Al. The treatment combinations were applied in a split plot ? randomized complete-block design. To understand the effects of the increase in Al concentration and the differences of kind of sugars on the varieties, standard error of mean (SEM) statistics were used. The results of this research indicated that sugars exuded from the roots of Slamet and Burangrang soybeans which experienced Al toxicity were glcose (Glc) and galactose (Gal). Total exuded Glc from Slamet variety was 639.23 µg, whereas Burangrang variety was 899.41 µg. Total exuded Gal from Slamet variety was 404.78 µg whereas Burangrang variety was 489.85 µg. The pattern of sugar exudation was different between Slamet and Burangrang with the increase of Al concentration. The Slamet variety confirmed more tolerant than the Burangrang variety since the Slamet variety increased the exudation of Glc and Gal in response to the increased of Al concentration. This phenomenon was strengthened by the parameter responses of a lower decrease on root fresh and dry weights, and a lower percentage of killed plants. Key words: aerophonic mist system, aluminum, glucose, galactose, soybean

Co-Authors , Agustiansyah Agus Karyanto Agustiansyah Agustiansyah Agustiansyah Agustiansyah Agustiansyah Agustiansyah Ali Rahmat Andi SETIAWAN Andrestu Kesuma Anjani Pratiwi Ardian Ardian B. Suprayogi Basoeki, Tjipto R. Cahya Adi Pranata Desis Kurniyati DIDIK PURWANTO Dolly Saputra Saputra E. Pramono Eko Pramono Eko Pramono Eko Pramono Eko Pramono Eko Pramono erlinda citra dewi Ermawati Ermawati Franciscus Xaverius Susilo, Franciscus Xaverius Gusti Ayu Ningrum Herawati Hamim Herawati Hamim Herawati Hamim John Hendri julia, alika nera giriyana julia Krisnarini, Krisnarini Kukuh Setiawan Kusuma, Yosep Riando M. Maryeta 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 Nurmiaty, Yayuk Pramono, Eko Rani Yosilia Ria Putri Ridwansyah, Budi Rizki Amelia 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 B. Manik Tumiar Katarina Manik Tumiar Katarina Manik Wawan Abdullah Setiawan Yafizham Yafizham Yayuk Nurmiaty Yayuk Nurmiaty Yayuk Nurmiaty Yohannes Cahya Ginting Yosep Riando Kusuma Zelwia Tiasmitha Astorhie

Title

Found 35 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 35 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 35 Documents
Search