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
Penggandaan Skala Produksi Bioinsektisida Bacillus thuringiensis var. israelensis untuk Membasmi Jentik Nyamuk Aedes aegypti Rahayuningsih, Mulyorini; Syamsu, Khaswar; Darwis, Abdul Aziz; Purnawati, Rini
Jurnal Ilmu Pertanian Indonesia Vol 12, No 2 (2007): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The objective of this research is to study the scaling up of bionsecticide production from Bacillus thuringiensisvar. israelensisusing onggok (a cassava by-product) as a carbon source. The insecticide produced was used to eradicate Aedes aegypti larvae. The product was a crystal protein produced during bacterial sporulation. Scaling up from laboratory to pilot plant scale was done using two methods, i.e. constant agitation power per unit volume (Pg/V) and constant oxygen transfer coefficient (kLa). The results showed that yield of product per substrate (Yp/s) of Pg/V based product with the value of 3.52 ± 0.02 spora per gram substrates was higher than Yp/s of  kLa based product with the value of 2.96 spora per gram substrate.  Logarithmic value of viable spore count (log of VSC) was also higher, i.e. 7.23 ± 0.30 for Pg/V based product as compared to 7.17 ± 0.20 for kLa based product. Substrate efficiency was also higher in Pg/V based (92.47%) than kLa based (64.87%). LC50 of Pg/V based product was lower (0.49 μg/ml) meaning that it was more toxic than kLa based product (0.62 μg/ml). Amino acid content of Pg/V based product was also higher than kLa based product. Constant Pg/V method was suggested as a based on the scaling up of bioinsecticide production of B. thuringiensis israe/ensison industrial scale. Keywords: bioinsecticide, Bacillus thuringiensisvar. israelensis, kLa, Pg/V, LC50, viable spore count
Potensi Daerah Sidik Jari Spektrum Inframerah Sebagai Penanda Bioaktovitas Ekstrak Tanaman Obat Darusman, Latifah Kosim; Heryanto, Rudi; Rafi, Mohamad; Wahyuni, Wulan Tri
Jurnal Ilmu Pertanian Indonesia Vol 12, No 3 (2007): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Efficacy and quality of medicinal plant extracts depend on chemical composition therein. Therefore, to ensure its efficacy orquality, the chemical composition of extracts have to be analyzed based on its chemical marker or its chemical pattern. This study tried to develop a method for extracts quality assay based on infrared spectrum in fingerprint region and extracts inhibition activity to xanthine oxidase. Five extracts from kunyit (Curcuma domestica), temulawak ( C xanthorriza), jahe (Zingiber officina/e), temukunci (Boesenbergia pandurata), and cabe jawa (Piper retrofractum) were tested to inhibit xanthine oxidase activity. The bioactive data of extracts and its infrared spectrum was analyzed using PCA and PLS-DA (partial least squarediscriminant analysis). Almost all extracts that were tested showed inhibition activity to xanthine oxidase activity, except the extract of jahe. The result showed that PCA can group all of extract into each of their region. Meanwhile, PLS-DA has shown to be a good prediction model for classifying extracts based on fingerprint region of its mR Spectrum and its biological activity. Keywords: fingerprint, mR spectra, compound marker, xanthine oxidase
Studi persepsi masyarakat tentang pengelolaan lanskap agroforestri di sekitar sub DAS Way Besai, provinsi Lampung Wulandari, Christine
Jurnal Ilmu Pertanian Indonesia Vol 15, No 3 (2010): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The narrowness of the average land that belongs to the community (
Perilaku masyarakat dalam pengelolaan dan pemanfaatan hutan rakyat : studi kasus di desa Kresnowidodo kecamatan Tegineneng kabupaten Pesawaran propinsi Lampung Qurniati, Rommy
Jurnal Ilmu Pertanian Indonesia Vol 15, No 3 (2010): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Degradation in production forest in lampung Province was high. Wood crop was cut and changed with agriculture crop and also the settlement. Cultivation of wood in land that own by society with private forest (hutan rakyat) pattern in Kresnowidodo Village become one of solution for rare of this wood. According to that, need to know how behavior socialize in management and wood exploiting from private forest in Kresnowidodo Village in order to overcoming the rare of wood and development of private forestspecially in lampung Province. location have been selected in purposive method with consideration that Kresnowidodo Village have 227 ha private forest. Farmer population that have private forest are 315 family. According to Slofin method obtained 39 family as sample. The method used descriptive qualitative analysis. Community behavior in management and exploiting of private forest analysed from three aspect that are produce aspect, processing aspect and marketingaspect. The result obtained that wood production in private forest still be conducted traditionally. Farmers did not conducted management intensively yet since assuming private forest land still be fertile enough to support growth of wood crop. The exploitation of private forest still as peripheral income and used as saving or reserve of farmer income. The existance of wood industry in Kresnowidodo Village become one of farmer motivation to develop private forest. Certainty in wood production from private forest supported with efficient wood market in the village perhaps have supported for development and continuation of private forest in Kresnowidodo Village.Keyword : Production, processing, marketing, private forest.
Tingkat prevalensi escherichia coli dalam daging ayam beku yang dilalulintaskan melalui pelabuhan penyebrangan merak Dewantoro, G. I.; Adiningsih, M. W.; Purnawarman, T.; Sunartatie, T.; Afiff, U.
Jurnal Ilmu Pertanian Indonesia Vol 14, No 3 (2009): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The aimed of this study was to determine prevalence of Escherichia coli in frozen chicken meat transported through Merak port. The samples were taken from DKI Jakarta (16 samples), Bekasi (11 samples), Bogor (8 samples), and Serang (18 samples). The average number of E. coli in frozen chicken meat from DKI Jakarta was 0.43x101±0.28x101 MPN/g, Bekasi was 10.4x101 ±33.04x101 MPN/g, Bogor was 0.28x101 ±0.23x101 MPN/g, and Serang was 6.72x101±25.79x101 MPN/g. Based on the result of ANOVA, the four areas had no significance in diferrence (p>0.05). The conclusion of this study showed that the average number of E. coli from Bekasi and Serang were over the maximum limit of microbial contamination as permitted by SNI 01-7388-2009 (1x101 MPN/g), whereas DKI Jakarta and Bogor were under the maximum limit. The prevalence of E. coli in frozen chicken meat from DKI Jakarta was 31.25°/o, Bekasi 31.25°/o, Bogor 27.27°/o, and Serang was 27.78°/o. Keywords: Escherichia coli, frozen chicken meat, Merak port.
Pasta Pati Jagung Putih Waxy dan Non-Waxy yang Dimodifikasi Secara Oksidasi dan Asetilasi-Oksidasi Aini, Nur; Hariyadi, Purwiyatno
Jurnal Ilmu Pertanian Indonesia Vol 12, No 2 (2007): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Modification of corn starch will give different effects depending on the corn variety. Gel forming capacity increased with increase in concentration of the samples and least gel concentration was maximal in higher amylose starch. Initial pasting temperature of native starch reduced from following oxidation and acetylation. Among the samples, the highest pasting temperature was recorded in native and values for peak viscosity during heating. The modified starch has better stability than native starch and lower tendency for syneresis and improve the freeze thaw stability.Keywords: white corn starch, oxidation, acetylation-oxidation, corn variety
Pengaruh bobot isi tanah terhadap sifat fisik tanah dan perkecambahan benih kacang tanah dan kedelai Haridjaja, Oteng; Hidayat, Yayat; Maryamah, Lina Siti
Jurnal Ilmu Pertanian Indonesia Vol 15, No 3 (2010): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Soil physical properties can affect to seed germination and plant growth. Soil compaction will degrade soil physical properties which in term will affect to root penetration and development in the soil. The improvements of soil physical properties is required to ensure seed germination and plant growth such treatment to maintain soil bulk density is quite low. The purpose of this research is to study the influence of soil compaction (soil bulk density) to soil physical characteristics and seed germination of peanuts and soybean.This research used Jasinga Podsolik Soil, conducted at Soil Physical Laboratory, Department of Soil Science and Land Resources, Faculty of Agriculture IPB, and Greenhouse of Center of Biological Resources and Biotechnology, Research and Community Services Agency, IPB(March-November 2009). Completed random design was used as experimental design and Duncans Multiple Range Test (DMRT) was used to identify the effect of treatment. The bulk density results of the research showed that the increasing of soil bulk density (soil compaction) had significantly affect on pF curves, permeability rate, and soil resistance before or after planting. For peanut, soil compaction significantly affect to plant height and root length. Soil compaction did not significantly affect on stem diameter, number of leaves, canopy or root biomass. For soybean, the influence of soil compaction had significantly affect just only on plant height. Stem diameter, number of leaves, root length or root and canopy biomasses were not affected by soil compaction.Keywords : Peanut, seed germination, soil bulk density, soil bulk density, soybean.
Koleksi Sel Telur dengan Teknik Laparoskopi untuk Produksi Embrio dan Transfer Embrio pada Domba Setiadi, Mohamad Agus; Supriatna, Iman; Boediono, Arief
Jurnal Ilmu Pertanian Indonesia Vol 12, No 2 (2007): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

An experiment was carried out to analyze the application of laparoscopic technique for oocyte collection, in vitro embryo production and embryo transfer in sheep. The first experiment was conducted to observe effect of gonadotropin stimulation on follicle development and laparoscopic technique for oocytes aspiration. In the second experiment, effect of culture system on the embryo development in vitro was assessed and in the third experiment, the application of laparoscopic for embryo transfer has been conducted. The result showed that single dose of gonadotrophin was sufficient to support follicle development significantly and it could help follicle visualization. It also showed that laparoscopic ovum-pick up could be conducted weekly without any restriction The second series experiment showed CR1aa culture system was better than TCM 199 (29.90°/o vs 8.00%) and the changing of media was required to ensure better metabolism process for embryos. The third experiment revealed that embryo transfer could be conducted with an aid from laparoscope. In conclusion, single dose PMSG stimulation is sufficient to support follicle development for /aparoscopic ovum-pick up, the culture media changing affects the successful rate of in vitro embryo production (8% vs 25.66%) and the laparoscopy technique can be used safely for embryo transfer on sheep.Keyword: laparoscopic, oocyte, embryo transfer, sheep
Penjernihan Nira Tebu Menggunakan Membran Ul Trafil Trasi Dengan Sistem Ali Ran Silang Suprihatin, Suprihatin
Jurnal Ilmu Pertanian Indonesia Vol 12, No 2 (2007): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Membrane ultrafiltration is one alternative technology to produce a high quality cane sugar with reasonable cost, because its ability to produce a brighter color and lower impurities as well as sulphur free of product. This technology can reduce process steps, chemical and energy demand, so that the production cost is potentially reduced significantly. This research work was aimed to study the performance of various membrane filtrations in the application for clarifying sugar cane juice, covering the achievable flux, membrane rejection againstimpurities, and quality of the filtered juice. The experiments were conducted according to the principle of cross flow using three different transmembrane pressures of 0.7, 1.4, and 2.1 bar and cross flow rate of 0.42 m/s. Various membranes were studied in this experiments both commercial ultrafiltration membrane and ultrafiltration membrane prepared in our laboratory. Sugar cane juice before and after clarification were characterized by measuring the parameters of brix, sucrose concentration, solution color, clarity, and pH. Thepolisulfone membrane, which was prepared in our laboratory, produced fluxes in the range of 25-30 L/m2.h at the transmembrane pressures of 0.7-2.1 bar. The membranes increased clarity of the juice from app. 10 to 60% of transmition and reduced color up to 80-90%, comparable with the results of the commercial ultrafiltration membrane.Keywords: cane sugar industry, sugar cane juice clarification, membrane ultrafiltration
Pemetaan Sumber Daya Laut Pulau Nias dengan Teknologi Penginderaan Jauh Satelit Pasca-Tsunami 2004 Gaol, Jonson Lumban; Arhatin, Risti Endriani; Manurung, Djisman; Kawaru, Mujizat
Jurnal Ilmu Pertanian Indonesia Vol 12, No 3 (2007): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Accurate and up-to-date information of marine resources is needed for optimum resource utilization. If the required information cannot be obtained with traditional field surveys, remote sensing as a tool for providing fast, efficient, and accurate information is used to detect the changes. The study aims to use remote sensing data for assessing distribustion and condition of marine resources in Nias waters before and after tsunami. Marine resources pararameter derived remote sensing data are sea surface temperature (SST), suspended solid matter, chlorphyll-a concentration, coral reef and mangrove distributions. Mapping and differences in coral reef and mangrove distribution were evaluated using two scans of Landsat image in 1989 and 2005. Sea surface temperature was derived from NOAA-AVHRR data, and chlorophyll-a concentration was derived from SeaWiFS data. The study showed that there were no significant changes of coral reef and mangrove distribution, SST, chlorophyll-a concentration after and before tsunami. Spectral analysis of SST and chlorophyll-a showed that the variability of the parameters was affected by monsoon system and global climate change, namely El Nino Southern Oscillation and Indian Ocean Dipole.Keywords: remote sensing, satellite, Nias, tsunami, chorophyll-a, coral reef, mangrove

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