Jurnal Ilmu Pertanian Indonesia
ISSN : 08534217     EISSN : 24433462
Artikel yang dimuat meliputi hasil-hasil penelitian, analisis kebijakan, dan opini-opini yang berhubungan dengan pertanian dalam arti luas, seperti agronomi, ilmu tanah, hama dan penyakit tanamam, ilmu kehewanan, kedokteran veteriner, keteknikan pertanian, teknologi industri, teknologi pangan, ilmu gizi, keluarga dan konsumen, biometri, biologi, klimatologi, peternakan perikanan, kelautan, kehutanan, dan sosial-ekonomi pertanian yang telah dipertimbangkan dan disetujui oleh Dewan Editor. Keterangan mengenai peralatan, pengamatan, dan teknik percobaan akan diterima sebagai artikel CATATAN. Pedoman Penulisan dicantumkan pada setiap terbitan tercetak. Indeks Penulisan dan subjek serta daftar penelaan (mitra bestari) dicantumkan di tiap nomor terakhir pada setiap volume.
Articles 641 Documents
Karakteristik Oriented Strand Board dari Kayu Akasia dan Afrika Berdasarkan Penyusunan Arah Strand Nurhaida, Nurhaida; Nugroho, Naresworo; Hermawan, Dede
Jurnal Ilmu Pertanian Indonesia Vol 13, No 1 (2008): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The research objectives arc to evaluate physical and mechanical properties of OSB based on strands orientation; and to evaluate physical and mechanical properties of OSB made from akasia wood (Acacia mangium Wild) and afrika wood (Maesopsis eminii Engl). Akasia and afrika wood are used for OSB strand material with phenol formaldehyde (PF) as adhesives and addition of paraffin. OSB made in this research is consist of three plies whereas are differed into eight (8) strand orientations. In the making process, hot press was carried out at 160OC and pressure 25kg.cm-2 for 15 minutes. Determination of OSB physical and mechanical properties is referred to JIS A 5908-2003. Result showed that strand orientations has no affect to OSB physical properties except for linicr swelling 24h, but it significantly influence all mechanical properties of OSB. Wood species have an effect on mechanical properties of OSB in the dry test, wet MOE lengthwise test and OSB physical properties, particularly to OSB density and water absorbing capability at 2h and 24h. All of OSB physical properties arc meet JIS A 5908-2003 standard, but not all of the mechanical properties such as dry MOE lengthwise, dry MOE and MOR widthwise. The best physical and mechanical properties is presented by OSB made from akasia wood in strand orientation F, G, Band C whereas all parameters meet JIS A 5908-2003 standard. In comparation with strand orientation B that is frequent used in industry, strand orientation F and G arc proficient to raise the modulus elasticity value (MOE) and strength (MOR) as much as 167.81-231.65% and 89.73-109.87%, respectively; especially in widthwise board application. Furthermore, strand orientation F and G arc more flexible as structural components.   Keywords: oriented strand board, phenol formaldehyde, strand orientation
Pelepasan dan Pemangsaan Kumbang Jelajah Paederusfuscipes (Coleoptera:Staphylinidae) Terhadap Telur Dan Larva Helicoverpa armigera (Lepidoptera: Noctuidae) Winasa, I Wayan; Hindayana, Dadan; Santoso, Sugeng
Jurnal Ilmu Pertanian Indonesia Vol 12, No 3 (2007): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Paederus fuscipes is an important predators in soybean fields, including toward Helicoverpa armigera. Predation evaluation using a cage are very common, giving significant suppressed the exposed pest population. However, predation evaluation in open space is rarely conducted. This study was to investigate the dispersal capability of P. fuscipes, and to evaluate the effectiveness of the beetle release in the predation on H. Armigera eggs and larvae. Observations were made in a soybean field in Mekarwangi Village, Cianjur, during soybean planting season in 2005 and 2006. In the dispersal study, all beetles were collected from the field and tagged on the elitra. As many as 1187 tagged beetle were released. The dispersal was observed in the area within a radius of 40 m from the release point. In the predation study, eggs and larvae of H.armigera from laboratory rearing were used as the prey. Soybean plots with exposed prey were treated by releasing the beetle with different densities, i. e., 100-400 beetles, and a control. The released beetles were from laboratory rearing and beetles were collected from the field. The study indicated that the tagged beetles that were released to the soybean field actively move but their dispersal were relatively slow. Until 5 days after release, most beetles were remain in the area surrounding release point, within a radius of 5 m. Release of predators to the soybean field, suppressed H. armigera egg and larva populations for both vegetative and generative stages, but were not significantly different between treatment and control plots, except for the egg population on vegetative stage. It indicates that population of the natural predator in soybean field were very complex and potential to be used for controling pest populations. Thus, it is important to manage soybean field that can support the role of predators in the field. Key words: predator release, Paederus fuscipes, predation, Helicoverva armigera
Pencirian Mananase Streptomyces costaricanus 451-3 Meryandini, Anjani; Ambarawati, Dwi; Rachmania, Nisa
Jurnal Ilmu Pertanian Indonesia Vol 13, No 1 (2008): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Major component of hemicelluloses are mannans (softwoods) and xylans (hardwoods). Hemicclluloses arc used by microbes as a carbon sources. Mannanase and xylanasc arc enzyme complex that are able to degrade hemicelluloses. Mannanase activity from Streptomyces costarianus 451-3 was tested in locust bean gum 0.5% and coconut meal 0.5% medium and was detected by dinitrosalysilic acid method. Protein concentration was measured using Bradford method. Mannanase and xylanase activity were also detected using birchwood xylan and oatspelt xylan medium. The optimum temperature and pH of Streptomyces mannanase strain 451-3 was 40 oC and 6,0, respectively. The addition 1mM of Mg2+ and Zn2+ at final concentration increased the mannanase activity for about 30% and 80%, while 1mM Mn2+, Ca2+ and Co2+ decreased its activity for about 67%, 100%, and 60%, respectively. The addition of I mM ethylene diamine tetraacetic acid tend to decreased the enzyme activity to 30%. The medium which contain birchwood xylan dan oatspelt xylan could induce mannanase activity, hut in a lower degree then that of xylanase. Keywords: mananase, streptomyces, xilanasc 
Bakteri Probiotik Dalam Budidaya Udang: Seleksi, Mekanisme Aksi, Karakterisasi, dan Aplikasinya Sebagai Agen Biokontrol Widanarni, Widanarni; Sukenda, Sukenda; Setiawati, Mia
Jurnal Ilmu Pertanian Indonesia Vol 13, No 2 (2008): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Bacterial disease attack occurs at the hatchery stage, which is considered to be the most serious threat, and often results in mass mortality of shrimp larvae by vibrosis which is that caused by a luminous bacterium identified as Vibrio harveyi. This research was carried out to obtain local isolates of probiotic bacteria that were able to inhibit the growth of V. harveyi and effectively apply it as a biocontrol of vibriosis in shrimp cultures. The research was carried out as follows: (1) In vitro and in vivo selection of probiotic bacteria candidates, (2) Study of the action mechanism and characterization of the selected pro biotic bacteria, (3) Study on application of the selected probiotic bacteria as a biocontrol agent in shrimp cultures. Results of in vitro and in vivo selection provided the best three isolates, which were 1Ub, SKT-b and Ua. The survival rate of shrimp larvae which were not only inoculated by V. harveyi but also with 1Ub, SKT-b and Ua probiotic bacteria were 88.33, 83.33, and 81.67% respectively; where as the positive control treatment (merely inoculated with V. harveyi) gave a 41.67% survival rate and the negative control (without bacterial addition) was 68.33%. Studies using a rifampicin resistant marker (RfR) demonstrated that the number of V. harveyi MR5339 RfR cells in treatments without probiotic addition were higher than the treatment with the probiotic bacteria, in dead larvae, living larvae, as well as in the culture media. Partial sequencing of the I6S-rRNA gene showed that the I Ub isolate was similar to Pseudoalteromonas piscicida, whereas the SKT -b and Ua isolates were similar to Vibrio alginolyticus. Selected probiotic bacteria could be applied directly to shrimp larva culture media, or orally through enrichment of both natural and artificial food. Keywords: Penaeus monodon larvae, probiotic bacteria, vibriosis 
Rancang Bangun Sistem Informasi Manajemen Kepegawaian dengan Metode the Open Group Architecture Framework (Toga F) Rachmaniah, Meuthia; Adrianto, Hari Agung; Aziz, Abdul
Jurnal Ilmu Pertanian Indonesia Vol 16, No 3 (2011): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The personnel administration process for functional staff follow bureaucratic procedures that is time consuming and often difficult to monitor. Further, the process will be prolonged if the process is handled manually. These conditions are often limit staff managers at unit level, technical implementation unit (UPT), or functional staff who need the information timely in a precise and accurate format. Manual handling cannot support the information speed, because staffs have to manually track file(s) or documents in the chain of bureaucracy that is complex and tedious. Delays in the process of obtaining such information could lead toadverse consequences in financial terms if for instance the termination in functional status and monthly salary occurred. One solution to this problem is to develop an online personnel information system (SIMPEG) to accelerate personnel information services. The Design of the online SIMPEG development utilized the method of open group architecture framework (TOGAF) while the system development implemented prototype method. Further the prototype is tested using developed questionnaires. In general the results of this study contribute to personnel information service acceleration. The promotions process (KP) was accelerated to 66.67% i.e. from 11-12 months to 4-3 months. Personnel time off and personnel reinstated (ABK) also accelerated by 66.67% that is previously taken 5-6 months to 2 months. While the process of scholarship approval was accelerated by 50% compared to the old system which was 3-4 months to 2 months.Keywords: System analysis and design, human resources management information system, enterprisearchitecture, TOGAF.
Dampak free trade arrangements (FTA) terhadap ekonomi makro, sektoral, regional, dan distribusi pendapatan di Indonesia Oktaviani, Rina; ., Widyastutik; Amaliah, Syarifah
Jurnal Ilmu Pertanian Indonesia Vol 15, No 3 (2010): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Indonesias commitment to be involved in the scheme of Free Trade Agreement (FTA) is expected to bring a multiplier effect for the Indonesian economy, including sectoral, regional, and household distributional impact. The study was conducted using recursive dynamic Computable General Equilibrium Model (CGE) with further extension on top-down regional features. In the short term, the impact of the FTA has not seemed to significantly increase the national and regional GOP of each province. Trade liberalization scheme could potentially reduce the real income of households, the largest decline in low-income households in rural areas. Increased household income disparities need to be accounted with a serious community empowerment program to avoid social and economic conflicts. Increased competitiveness on regional and sectoral level is necessary. Improvement on market access is mandatory for several advantageous commodities. By increasing competitiveness, quality of infrastructures, and access to export markets, the export performance can beimproved. From the internal side, an efficient supply chain management is also crucial to meet the desires of consumers with quality, time, price and the right amount.Keywords : Free Trade Agreement(FTA), Computable General Equilibrium (CGE), Regional Economics.
Aplikasi Berbagai Marka Aromatik pada Varietas Padi Indonesia Seno, Djarot Sasongko Hami; Nugroho, Satya; Santoso, Tri Joko; Adrianto, Dimas; Praptiwi, Dewi; Apriana, Aniversari
Jurnal Ilmu Pertanian Indonesia Vol 16, No 3 (2011): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

This research applied various badh2.7 and badh2.2 fragrant markers (Bradbury et al., 2005b, Lang and Buu 2008, Shi et al., 2008, Sakthivel et al., 2009) on popular Indonesia non-fragrant (Ciherang, Fatmawati) and fragrant (Pandan wangi, Rojo Lele, Mentik Wangi, Gunung Perak, Pulu mandoti, Pare Kembang, Sintanur) rice varieties. For comparison, IR64, Nippon bare and Taipei 309 were included. Rice DNA samples were isolated from young  leaves, and PCR amplified using each of those fragrant markers. Results using all badh2.7 markers were consistently supported the existence of 2 group badh2.7 mutation pattern, while the use of badh2.2 marker indicated that there was no ex on 2 mutation. Badh2.7 sequence analysis of non-fragrant Ciherang, and aromatik member of group 1 (Pandan Wangi), as well as group 2 (Mentik Wangi) showed different mutation pattern. Keywords: Badh2.2, badh2.7, fragrant maker, fragrant, non-fragrant.
Perilaku Disolusi Ketoprofen dan Indometasin Farnesil Tersalut Gel Kitosan-GG Sugita, Purwantiningsih; Sjahriza, Achmad; Srijanto, Bambang; Arifin, Budi
Jurnal Ilmu Pertanian Indonesia Vol 13, No 2 (2008): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Chitosan, a modification of shrimp-shell waste, has been utilized as microcapsule. However, its fragile gel property needs to be strengthened by adding glutaraldehyde (glu) and natural hydrocolloid guar gum (gg). This researchs purposes were to determine rheological properties of chitosan-guar gum gel, to study diffusion and dissolution behaviour of ketoprofen and infar through optimum chitosan-guar gum gel membrane and microcapsule, respectively, and to test the coating stability of both medicines by the gel microcapsules, which are new drugs preparation, to determine their shelf lives and to predict the degradation mechanisms. This research was designed in six (6) steps: (1) chitin isolation and chitosan synthesis; (2) synthesis and optimization of chitosan-guar gum gel membrane; (3) in vitro study of ketoprofen and infar diffusion behaviour through the optimum membrane; (4) synthesis and optimization of chitosan-guar gum gel microcapsule to coat ketoprofen and infar; (5) in vitro study of ketoprofen and infar dissolution behaviour from the optimum microcapsule; and (6) physical and chemical microcapsule stability test using relative humidity (RH) and temperature controlled climatic chamber method. Studies on ketoprofen diffusion through chitosan-guar gum membrane showed that the formation of membrane small pores were appeared to be caused by membrane swelling, which was supported by the forcing force resulted from the difference of ketoprofen concentrations in the diffusion cells and from the temperature increase. This unique pore opening process is excellent for drug delivery process as a microcapsule. Spray drying process had successfully coated ketoprofen and infar in chitosan-guar gum microcapsule. Optimization by using Minitab Release 14 software showed that among the microcapsule compositions studied, [gg] and [glu] of 0.35% (w/v) and 3.75% (v/v), respectively were optimum to coat ketoprofen, whereas [gg] and [glu] of 0.05% (w/v) and 4.00% (v/v), respectively were optimum to coat infar, at constant chitosan concentration (1.75% [w/v]). In vitro dissolution profile showed that chitosan-guar gum gel microcapsule was more resistant in intestinal pH condition (rather basic) compared with that in gastric pH (very acidic). From stability test, formulation of ketoprofen preparation composed of 1.75% (w/v) chitosan, 0.35% (w/v) gg, and 3.50% (v/v) glu, was relatively the best, ·with ketoprofen percentage left in microcapsule after 3 months, degradation rate constant, and shelf life of of 80.33%, 0.0351 % week-1 and 18.92 months, respectively. The degradation of ketoprofen was seem to follow autocatalytic reaction mechanism controlled by the formation and growth of reaction core. In the other hand, the formulation with composition of 1.75% (w/v) chitosan, 0.19% (w/v) gg, and 5.00% (v/v) glu, was relatively the best microcapsule, with infar percentage left in microcapsule after 3 months, degradation rate constant, and shelf life of 77.67%, 0.0008 %-2 week-1 , and 4.28 week or about 30 days, respectively. The degradation of infar was presumably caused by hydrolysis.   Keywords: Chitosan-guar gum, diffusion, dissolution, stability
Pertumbuhan semai sengon dan mangium pada tanah padat Matangaran, Juang Rata; Wibowo, Cahyo; Suwarna, Ujang
Jurnal Ilmu Pertanian Indonesia Vol 15, No 3 (2010): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The research was conducted to examine the seedling of mangium (Acacia mangium and sengon (Paraserianthes falcataria) on compacted soil. Soil was compacted with a proctor test at the different level of bulk density (0.9;1.0; 1.1; 1.2; 1.3 g/cm3 ) with 10 replications. The compacted soil was put into the plastic pot. After 6 month growth in pot the seedling growth response was measured.The result showed that the root penetration and seedling height linearly decrease with the increase of bulk density. The root of seedling of mangium (Acacia mangium and sengon (Paraserianthes fa/cataria) could not penetrate deeply at the hardest soil (1.3 g/cm3 ). Roots needs space to grow. The space was occupied by soil particles and soil pores. Root may influence chemical and physical properties of soil. In related to the compacted soil the root penetration is theimportant variable which is affected by the soil hardness. Under the condition of decrease penetration, seedlingcan not grew well in lack of nutrient to be absorbed by the root. On the other hand the bulk density 1.3 g/cm3 showed difference for seedling height response. However, the growth response was significantly reduced at the level of 1.3 g/cm3. The bulk density 1,3 g/cm3 was the critical limit of soil hardness for the seedling of Mangium and Sengon growth.Keywords : Soil compaction, root penetration,seedling height, acacia mangium, paraserianthes fa/cataria.
Pembentukan Umbi Lapis Mikro Dua Kultivar Bawang Merah (Allium cepa var. Aggregatum Group) pada Beberapa Konsentrasi Succunic Acid Daminozide Hydrazide Dinarti, Dini; Purwito, Agus; Susila, Anas D; Rahmawati, Iis
Jurnal Ilmu Pertanian Indonesia Vol 13, No 1 (2008): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The objective of this research was to study shallot bulb formation on few concentrations of growth retardant succinic acid daminozid hydrazide (SAOH). Completely Randomized Design with 2 factors were used in this experiment. The first factor was four concentrations of SAOH (0, 30, 60 and 90 ppm) and second was two cultivars of shallot (Bima Juna and Kuning Tablet). The cultivars did not give significant effect to total number of leaf, shoot, root, number and weight of bulb, diameter of bulb, and height of plantlets. While SADH concentrations gave very significant effect to number of leaf, but not significant to number of root, number and weight of bulb, diameter of bulb and height of plantlets. Combinations of the two factors only gave significant effect to number of leaf and shoot but not significant to number of root, number and weight of bulb and height of plantlets.   Keywords: bulb formation, SAOH, shallot

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