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.
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Search results for , issue " Vol 13, No 1 (2008): Jurnal Ilmu Pertanian Indonesia" : 16 Documents clear
Pengaruh Skarifikasi dan Media Tumbuh Terhadap Viabilitas Benih dan Vigor Kecambah Aren Saleh, Muhammad Salim; Adelina, Enny; Murniati, Endang; Budiarti, Tati
Jurnal Ilmu Pertanian Indonesia Vol 13, No 1 (2008): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The research aims to find out the effect of seed scarification and germination substrat to seed viability and seedling vigor of aren. The Experiment applied a group random design (RAK) with factorial style consiting of two factors. The first factor are scarification treatment:S0=without scarification, S1=scarification+trcatment 40 oC, S2=scarification+KN03 0.5%, soaked for 36 hours+tempcrature 40oC, the second factor arc germination substrat: M0=sand, M1=rice coal, M2=cocopith, M3=soil from palm tree+organic materil (1:1), M4=M3+fertilizer NPK (1 g per kg media). The highest seed germination was found in the scarification+KN03 0.5%, soaked for 36 hours+ temperature 40 oC which growing on media of palm oil soil+organic fertilizer (1:1)+fertilizer NPK (1g per kg media) that 83.33-86.67% and germinating speed 0.85-1.04% ctmal. There treatment also effected on seedling vigor normal vigours germination indicated by dry content weight and hypotctic vigor index. Keywords: aren, scarification, germination substrat
Penenggulangan Caplak Rhipicephalus sanguineus dengan Vaksinasi Astyawati, Tutuk; Wulansari, Retno
Jurnal Ilmu Pertanian Indonesia Vol 13, No 1 (2008): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The tiltle of this study is Rltipiceplta/us sanguineus controls by vaccination. The vaccine used from crude adulttick extracts to vaccinated dogs, shccps and rabits. The experimental animals were inoculated subkutaneously, threetimes every two weeks with crude adult tick extracts and adjuvant. Fifteen days after the last inoculation all animalswere submitted to challenge infestation with unfed adult ticks. The dogs were placed in the severe contaminatedenvironment. The ticl.:s were placed inside a feeding chamber consisting of a plastic tube to the saved back of shccps.Ticks were placed for save behind the ear of rabbits. Observation was done 3 days after infestation. The results ofthis investigation were observed that most of ticks were recovered in dogs either vaccinated or non vaccinatedgroups, however on the control groups without vaccinated ticks the infestation were higher than vaccinated groupsas well as in the sheeps and rabbits. In the rabbits although ERCE value between vaccinated and non vaccinatedgroups not significants statistically, there were demonstrated that ERCE value in the vaccinated groups lower thancontrol groups without vaccinated. According to our investigation we can concluded the usc of tick antigen couldinduced resistance by direct immunisation. Adult ticks of Rltipicepltalus sanguineus crude extract tends to induceresistance in rabbits, sheeps and dogs with different level of resistance. The immunity seems not to be acquiredduring a natural exposure tends to evolved with crude adult tick extracts vaccinations.Keywords: resistance, rhipicephalus, sanguincus, vaccination
Keragaman Gen K-Kasein dan Hubungannya dengan Produksi dan Kualitas Susu pada Domba di Unit Pendidikan dan Penelitian Peternakan (UP3) Jonggol Sumantri, Cece; Andreas, Eryk; Farajallah, Achmad; Jarmuji, Jarmuji
Jurnal Ilmu Pertanian Indonesia Vol 13, No 1 (2008): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The objectives of this study were to identify polymorphisms in ovine K-casein gene exon 4 and its association with milk yield, percentage of protein and milk fat in sheep under extcnsif management at JASTRU (Jonggol Animal Studies Teaching and Research Unit) farm, Fact. of Anim Sci, Bogor Agric. University. The 83 blood sample from ewes which have record of milk production were used to determined polymorphism by using PCR-SSCP (Polymerase Chain Reaction-Single Strand Conformation Polymorphism) methode. The research activities were carried out through blood collection, DNA isolation, and fragment DNA amplification by PCR and separation in electrophoresis with silver staining. Electrophoretic pattern (PCR-SSCP) revealed th rce types of K-casein gene were dcsignitcd A, Band C type. The highest proportion was A type 69.57% and followed hy B 28.99% and the lowest C 1.45%. The were no significant effect of types of of K-casein gene on milk production and milk quality (percentage of protein and fat) in local sheep from Jonggol.   Keywords: .Jonggol sheep, K-cascin gcn, PCR-SSCP, polymorphism
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
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 
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
Penerapan Energi Terbarukan untuk Proses Thermal Bagian I. Pengeringan Hasil Pertanian Abdullah, Kamaruddin; Tambunan, Armansyah H; Soepardjo, Harsono
Jurnal Ilmu Pertanian Indonesia Vol 13, No 1 (2008): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Study on thermal processes using renewable energy sources for drying and cooling purposes hasc been selected due to their importance in extending shelf life of agro and marine products which arc susceptible to high temperature and humidly under the tropical climatic conditions. The unavailability of these facilities had resulted in significant amount post harvest which sometime may reached up to 30% of harvest. This research was aimed to determine the proper design and construction of renewable energy conversion, namclyt, solar, wind and biomass to generate thermal energy for drying and cooling of agricultural and marine produccts. Both processes could also be used as the main component of a Small Processing Unit (SPU), an early form of SME and cooperative at village level. This paper will discuss Part I of the study which will be focused on the application of renewable energy sources for the drying of agricultural products. The following conclusions had been achieved. a). Study on simultaneous momentum, energy and mass transfer in thin layer drying process of rough rice have provided information on air temperature, velocity and RH distribution above the grain. b). A novel ventury type CIIE solar dryer with solar PV power supply and PCM energy storage, has been successfully designed and constructed. Test results have shown that the dryer could he used to dry 75-95kg of fish within 36 to 40 hrs. wirh apparent PCM energy storage of 6.9M.J (6 hrs. drying time). c). Mathematical modelling and simulation of a biomass stove heated recirculation dryer indicated that drying of rough rice could be completed within 3-6hrs (1.8-3.7T.hrs-1 recirculation rate with one hour tempering time) if 2 HP blower is used.   Keywords : energy storage, momentum and mass transfer, recirculation dryer, renewable energy conversion, simultaneous energy
Intersepsi Curah Hujan di Hutan Hujan Tropis: Studi Kasus di Taman Nasional Lore Lindu Sulawesi Tengah Rauf, Abdul; Pawitan, Hidayat; June, Tania; Kusmana, Cecep
Jurnal Ilmu Pertanian Indonesia Vol 13, No 1 (2008): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

This filed research was conducted from Apr 2006 to .Juni 2007 at natural tropical rainforest of the Lore Lindu National Park, Central Sulawesi. The objectives were to study the effect of rainfall properties and vegetation characters on interception losses through mathematical model approach, to estimate the rainfall interception losses and to determine the dominant factors influencing them. Observation of vegetation characters in the study area indicated that the vertical and horizontal structure were in good conditions with high leaf area index (LAI 4.8-6.43 m2.m-2 ), ground cover (68.5-92.59%) and wide canopy at average 5.59 (12.05-9.83 m2 Total rainfall (P) on the first measuring phase (Apr 2006-March 2007) was 1502,6mm for 172 events. Dominant rainfall depth was 0.5-5mm for 78 events with cumulative rainfall at 182.2mm or 12.3%, of P. Dominant rainfall intensity was 1--10 mm per hour for 121 events with cumulative rainfall 140.2 mm or 9.3 % of P. The mathematical relationship between rainfall properties and vegetation characters with throughfall, stemflow and interception loss show that rainfall depth and LAI are two factors that strongly influences as expressed: interception loss: Ic= 0. 786+0.343* P+0.051 *LA I (R2=73,77) Application of this equation and Gash model to the second measurement phase (Apr 2007-Juni 2007) gave good agreement on interception estimate and sensitivity, and considering data requirement and calculation procedure this equation is applicable for interception estimation. The critical point of this result is the rainfall properties on Lore Lindu National Park that is very important to forest management, especially in controlling of flooding. Keywords : rainfall interception, tropical rain forest, vegetation characters
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

Show Abstract | Original Source | Check in Google Scholar | Full PDF (243.265 KB)

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 
Pengaruh Skarifikasi dan Media Tumbuh Terhadap Viabilitas Benih dan Vigor Kecambah Aren Saleh, Muhammad Salim; Adelina, Enny; Murniati, Endang; Budiarti, Tati
Jurnal Ilmu Pertanian Indonesia Vol 13, No 1 (2008): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Original Source | Check in Google Scholar | Full PDF (314.896 KB)

Abstract

The research aims to find out the effect of seed scarification and germination substrat to seed viability and seedling vigor of aren. The Experiment applied a group random design (RAK) with factorial style consiting of two factors. The first factor are scarification treatment:S0=without scarification, S1=scarification+trcatment 40 oC, S2=scarification+KN03 0.5%, soaked for 36 hours+tempcrature 40oC, the second factor arc germination substrat: M0=sand, M1=rice coal, M2=cocopith, M3=soil from palm tree+organic materil (1:1), M4=M3+fertilizer NPK (1 g per kg media). The highest seed germination was found in the scarification+KN03 0.5%, soaked for 36 hours+ temperature 40 oC which growing on media of palm oil soil+organic fertilizer (1:1)+fertilizer NPK (1g per kg media) that 83.33-86.67% and germinating speed 0.85-1.04% ctmal. There treatment also effected on seedling vigor normal vigours germination indicated by dry content weight and hypotctic vigor index. Keywords: aren, scarification, germination substrat

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