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INDONESIA
Jurnal Ilmu Pertanian Indonesia
Published by Institut Pertanian Bogor
ISSN : 08534217     EISSN : 24433462     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
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.
Arjuna Subject : -
Articles 975 Documents
 65   66   67   68   69 
Pengabut Semprot Bergerak untuk Pemberantasan Hama Kelapa Sawit Gatot Pramuhadi; Zavira Mega Ayu; Muhammad Haikal Kusdian; Riza Fahri; Raesa Firdiansyah Pratama; Anik Rahayu
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 4 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.4.487

Abstract

Palm oil (Elaeis guineensis) is a tropical plant that can be attacked by various pests, start from nurseries to plantations, so it is necessary to eradicate pests. Generally, the pests is eradicated by applying pesticides using fogging machines brought down by farmers so that they are ineffective in reaching high plants, and hot smoke from fogging machines can damage oil palm leaves. This study aims to design a tool that can optimize the application of pesticide fog to oil palm plants at a certain height. The tool's design in the form of a mobile spray fogger also aims to facilitate the operator in applying pesticide fog at various heights of oil palm and, simultaneously, can reduce the impact of damage to oil palm leaves. The research method was carried out by testing the performance of pesticide fog spraying in the laboratory and the performance test of applying pesticide fog using mobile spray foggers on the land. Furthermore, pesticide smoke from fogging machines was optimized by combining electric sprayers and air blowers so that pesticide fog is formed, reducing the temperature of pesticide smoke, and increasing the range of fogging. The performance of the combination of outputs from fogging machines, electric sprayers, and air blowers on mobile spray fogger produces a droplet diameter of 94.41 μm, droplet density of 365.44 droplet/cm2, effective fogging range of 8.63 m, effective fogging width of 0.91 m, and an average temperature decrease of 4°C. Keywords: air blower, electric sprayer, fogging machine, palm oil, pests
Aplikasi Actinomycetes dan Bakteriofag pada Tomat Sambung untuk Mengendalikan Penyakit Layu Bakteri Ralstonia solanacearum dan Meningkatkan Hasil Buah Lisa Navitasari; Tri Joko; Rudi Hari Murti; Triwidodo Arwiyanto
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 4 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.4.527

Abstract

Ralstonia solanacearum (Smith) is a soil-borne pathogen that causes bacterial wilt disease and is a complex species in races, biovars, phylotypes, and strains of various pathogenicities. As a result, the pathogen is difficult to control. An alternative control is by applying actinomycetes and bacteriophages on tomato grafted with resistant rootstock. This study aims to find the best combination in controlling bacterial wilt disease among grafted tomato plants and/or actinomycetes and/or bacteriophage treatments to increase yields. The graftings were between Amelia (East West, Indonesia) or H7996 (AVRDC) as rootstocks, and Servo (East West, Indonesia) as the susceptible scion. The grafting used the tube method, and the experimental design was a randomized completely block design with the grafted plants treated by actinomycetes and/or bacteriophages with three replications. The results indicated that actinomycetes application on plants grafted with Amelia rootstock or H7996 and the application of bacteriophages on susceptible varieties (Servo) could be the best alternative treatment in controlling the bacterial wilt disease. The susceptible varieties with the actinomycetes or bacteriophages application could even increase fruit yields higher than the grafted tomatoes treated with actinomycetes or bacteriophages. In fact, the susceptible tomato varieties with bacteriophage treatment showed high fruit yield. Keywords: actinomycetes, bacteriophages, bacterial wilt disease, fruit yield, Ralstonia solanacearum
Efektivitas Konsentrat Papain Bubuk, Getah Pepaya Segar, dan Papain Komersial sebagai Koagulan dalam Pembuatan Dangke Muh. Achyar Ardat; Zakiah Wulandari; Irma Isnafia Arief
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 4 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.4.620

Abstract

Dangke is a milk-based dish in which the papain coagulates casein. This study aims to test the effectiveness of powdered papain concentrate, fresh papaya sap, and commercial papain as a coagulant agent in the dangke preparation with three additional levels of enzyme activity in each type of papain. The resulting dangke was tested physically, chemically, and organoleptically to determine the type of papain and the enzyme's activity level most effectively as a coagulant. The three enzyme activity levels used were 217.14, 434,29, and 651.44 AU/mg with a heating temperature of 100.16°C. The experiment used a randomized group design factorial pattern with three replications. Testing on the physical properties of the two types of papain showed results that did not differ significantly (P>0.05) for the whey weight but differed significantly for the yield. The results of the chemical properties test showed significantly different results (P<0.05) on the protein level. Based on hedonic quality tests, the dangke that is liked was chewy in texture, white in color, predominantly milky, has a distinctive dangke taste, and does not taste bitter. The hedonic quality on Anova test indicated a significantly different result (P<0.05) for all tested parameters. The best papain as a coagulant in dangke making was fresh sap papain and freeze-dried papain with the addition of the lowest level of enzyme activity, or level one. Keywords: coagulant, dangke, enzyme activity, organoleptic, papain
Effective Behavior of Insects Pollinators of Flowers in Gadung Mango Clone 21 Variety Ramadhani Mahendra Kusuma; Wiwin Windriyanti
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 4 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.4.596

Abstract

Pollinating insects are referred as support services, namely services by the processes in the ecosystems that support human well-being by maintaining or enhancing ecosystem services. The availability of flowers, diversity, and behavior of visiting pollinator insects affect the effectiveness of pollination to increase the formation of fruit sets of mango plants. The purpose of this study is to observe the behavior of pollinator insects visiting the mango gadung clone 21 varieties and their effectiveness in increasing the formation of fruit sets. Research has been carried out on two flower seasons: March-May (Off season) and July-September (On season) 2020. Visiting behaviors observed were the number of visits per minute (foraging rate) and the length of visit per flower (flower handling time). Pollination effectiveness was measured from the number of fruit sets formed from the open flower panicles and confined with a tangerine gauze. The results of the study obtained seven species including Apis sp., Trigona sp., Xylocopa sp., Polistes sp. 1, Polistes sp. 2, Chrysomya sp., and Eristalis sp. Visits of pollinating insects on the highest number of mango panicle flowers were (31.69 ± 7.69) flowers / 60 seconds by Trigona sp insects, and the lowest numbers were (2.70 ± 0.67) flowers / 60 seconds by Eristalis sp. insects. The longest visits of pollinator insects on mango flowers were obtained by Eristalis sp for (25.3 ± 8.50) sec/individual/flower and the shortest visits were by Trigona sp for (1.8 ± 0.63) seconds/individual/flower. Insect pollination increases fruit formation by 267.5%. Keywords: insect visits, pollinating insects, fruit formation, gadung 21 varieties mango
Pencirian Genetik Pepper Yellow Leaf Curl Virus pada Tanaman Cabai Merah (Capsicum annuum) di Bengkulu Sipriyadi Sipriyadi; Abe Novan Aditya Rahman; Welly Darwis Welly Darwis; Risky Hadi Wibowo; Mimi Sutrawati; Cindy Margaret Hutasoit; Yuni Kristina; Redo Setiawan
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 4 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.4.574

Abstract

Chili is one of the horticultural commodities with increasing demand yearly. Rejang Lebong and Kepahiang regencies are the most significant chili-producing areas in Bengkulu. One of the crucial viruses in chili plants is Pepper yellow leaf curl virus (PYLCV). PYLCV virus infection in the vegetative phase can cause stunted plants and fail to bear fruit. This study aims to detect and genetically characterize PYLCV. Samples of chili plants were taken in these two districts using the purposive sampling method. Virus detection was carried out at the Genetics and Biotechnology Laboratory, Department of Biology. Extraction of viral DNA using the Cetyl Trimethyl Ammonium Bromide (CTAB) method. Rep and Trap gene amplification using universal primers of Bemovirus. SPG1 and SPG2. The PCR product was visualized on a 1.2% agarose gel in TAE.. Furthermore, the PCR products were sequenced in PT Genetics Science Indonesia. Virus gene sequences were aligned using Bioedit and MEGA X software. The results showed that of the 24 chili plants sampled in the study, 21 samples showed an amplicon with a size of ~ 900 bp, which follows the length of the amplicon based on the primer used. Of the 21 amplicon results, 6 of them were sequenced and genetically characterized. The results of the genetic characterization of the 6 samples showed the presence of 552 conservative sites (C) (75.6%), 178 variation sites (Vi) (24.4%), parsimony sites (Pi) (15.9%), and 70 singleton (S) sites (8.5%). The highest nucleotide base composition was thymine (T) with an average value of 30.1%, and the lowest was guanine (G) 21.9%, while the highest nucleotide combined composition was AT with an average value of 55%, the lowest was GC approximately 45%. The average genetic distance between samples was 0.13 (13%). Based on the phylogenetic tree, 6 samples were divided into two groups. Keywords: begomovirus, Bengkulu, Capsicum annuum
Segi Sanitasi pada Pendaratan Ikan Tuna di Pelabuhan Perikanan Samudera Bungus, Sumatra Barat Mustaruddin Mustaruddin; Eno Selomita; Thomas Nugroho; Sri Susanti Kartini
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 4 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.4.536

Abstract

Clean and hygienic fish landings to meet sanitation requirements and guarantee the quality of the fish caught are an important part of the role of the fishing ports. However, it has not been done much at Bungus PPS, which was marked by the handling of fish quality that was not standardized, some unloading equipment and transportation facilities were rarely cleaned, and the environmental quality at the fish landing dock was not maintained. The study aimed to evaluate the quality control level of tuna fish, the performance of fish landing sanitation, and estimate the potential losses from neglected fish landing sanitation. The study used the scoring system, p control chart analysis, regression method, and profit/loss analysis. Organoleptically, the quality of tuna landed on Bungus PPS was at 7.50‒7.77 (fresh enough to fresh). The quality of tuna was still under control, with the value of upper control limit (UCL) = 0.220, central line (CL) = 0.07 and lower control limit (LCL) = 0.000. The sanitation performance of fish landings on PPS Bungus was around 3,45 (scale 1-5). Sanitation of fish handling (x) significantly affects the quality of tuna caught (y), which was indicated by the equation y = 0,1308x + 7,175. The sanitation conditions explained that 84.4% of the tuna caught were maintained. Potential losses from neglected landing sanitation were (a) the loss of the best-selling price of tuna and (b) the cost of nutrition consultation and disease management due to damage to the nutritional content of tuna. Keywords: bungus, tuna caught, fishing port, fish landing sanitation
Optimisasi Tekanan dan Nisbah Refluks pada Pemurnian ∆-Guaiena Minyak Nilam (Pogostemon cablin) secara Distilasi Fraksional Rahmi Rahmawati; Sarifah Nurjanah; Efri Mardawati
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 4 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.4.614

Abstract

Patchouli oil is one of Indonesia's important essential oils as an export commodity. Δ-Guaiene is one of the terpenes in the oil, which is shown to have antimicrobial activity against some fungi and bacteria. Thus, the production of δ-guaiene needs to be optimized. This study aims to determine the appropriate pressure and reflux ratio for the fractional distillation process that isolates the highest δ-guaiene content. The experiment used the response surface method. The pressure of the fractional distillation process and reflux ratio were: 1;10; 20 mmHg; and 5:1; 20:1; 35:1. The temperature ranged from 270‒272°C. Various pressure did not give different yields, except at a pressure of 1 mmHg that resulted in 4% yield and δ-guaiene content of 20.46%; both conditions were optimum. The δ-guaiene was characterized for the density, refractive index, distillate formation rate, distillation time, residual mass, and electrical energy requirements, which were 0.9519, 1.5027, 4 mL/min, 1 minute, 6.31 g, and 6.0477 kW/h, respectively. The lower the reflux ratio, the faster the distillation process; the faster the processing time, the lower the energy requirement; and the higher the ratio of reflux, the purer the percentage of the δ-guaiene. The optimum process was reached as the reflux ratio was lower, where the yield and δ-guaiene content were the highest, and the processing time was faster. Keywords: δ-guaiene, fractional distillation, patchouli oil, reflux pressure, RSM
Pemanfaatan Limbah Kultur Batch Bioreaktor dan Biochar untuk Meningkatkan Kesuburan Tanah Zaitun Zaitun; Agus Halim; Sufriyadi Rahya
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 4 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.4.582

Abstract

The purpose of study was to determine the effects of aeration treatment on fish wastewater quality as a liquid organic fertilizer and fish wastewater watering treatment as a liquid organic fertilizer and a biochar application on nutrient content of lettuce and soil chemical properties. This study used a non factorial randomized block design. Treatments combination were watering freshwater frequency (W0: without watering; W1: watering twice a week; and W2: watering 4 times a week) and rice husk biochar dose (B0: without rice husk biochar; B1: 10 g rice husk biochar per polybag; and B2: 20 g rice husk biochar per polybag). The research parameters included: fish culture wastewater quality (pH, Biological Oxygen Demand, Chemical Oxygen Demand, NH3-N, NO3, NO2, Dissolved Oxygen, electrical conductivity, and temperature), plant nutrient content analysis (N, P, and K), and soil chemical analysis (pH, organic C, total N, C/N ratio, available P, and exchangeable K). The results showed that the quality of wastewater after aeration for 4 days met the water criteria to cultivate plants. The nutrient contents in the soil showed criteria for neutral soil pH, very low organic C, very low total N, medium C/N ratio, very high available P, and low exchangeable K. Although the nutrient content in the soil was low, the concentrations of N (1.87-3.08%), P (0.16-0.21%), and K (2.35-3.43%) nutrients in the plant were sufficient for lettuce growth. The combination treatment of watering wastewater 4 times a week and rice husk biochar 20 g per polybag gave better results to increase soil fertility and lettuce plant nutrients. Keywords: liquid waste, plant nutrients, soil amendment, soil chemistry
Ketebalan Daun dan Laju Transpirasi Tanaman Hias Monokotil Chindy Sulastri Ningsih; Entin Daningsih
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 4 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.4.514

Abstract

Leaves are the main organ in plants. In general, leaf thickness varies amongst plants and is related to the transpiration rate. This study measured leaf thickness and transpiration rate in six ornamental monocotyledon plants. The experiment used Factorial Completely Randomized Design (CRD) with three replications. The main factors were six monocotyledon plants and three plant parts; combination factors were interactions between plant species and plant parts. Leaf thickness was measured from the upper to the lower epidermis before and after measuring the transpiration rate. The transpiration rate was measured by weighing. The data were analyzed using SAS with the Factorial CRD model and continued with LSD if the treatment was significant. The plant types and parts significantly affected the leaf thickness and transpiration rate. However, the combination treatments between plant types and plant parts significantly affected only the transpiration rate. Chlorophytum comosum L. had the highest transpiration, followed by Dracaena reflexa, Aglonema crispum, Cordyline fruticosa, Crymum asiaticum, and Rhoeo discolor. The leaves of the lower parts of the plant had the highest transpiration rate compared to the middle and upper parts of the plant. Rhoeo discolor had the thickest leaves and lower transpiration rate than other plants. The leaf thickness ranged from 95.94 µm to 147.03 µm. This phenomenon indicated that the thickness of the leaves was inversely correlated to the transpiration rate. Keywords: leaf thickness, transpiration rate, monocotyledon, ornamental plant
Diversity and Distribution of Phaeophyta Macroalgae in Pedalen Coastal Waters, Kebumen Dwi Sunu Widyartini; Achmad Ilalqisny Insan; Hexa Apriliana Hidayah
Jurnal Ilmu Pertanian Indonesia Vol. 28 No. 1 (2023): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.28.1.65

Abstract

Pedalen Beach, Kebumen, has a type of water substrate consists of sand, coral fragments, and coral overgrown with macroalgae. This study aims to determine the species diversity and distribution pattern of Phaeophyta found in that waters. This research is to explore and utilize macroalgae as a sustainable alginate resource. This study uses a survey method, employing the line transect method randomly. The research variables were species diversity and the distribution pattern of Phaeophyta. The main parameters were the number of species and individuals of each species. Supporting parameters include current velocity, nitrate content, brightness, depth, tide, salinity, temperature, and pH. The data were analyzed using the Shannon-Wiener diversity index (H’) to determine the level of species diversity and the Morisita distribution index (Id) to describe the distribution pattern of macroalgae species. We found five Phaeophyta species consisting of Padina australis, Dictyota dichotoma, Turbinaria ornata, Sargassum crassifolium, and S. polycystum. The diversity of Phaeophyta is classified as low diversity index value (H’) with distribution patterns of uniform macroalgae species. The results of the measurement of physical and chemical factors of the waters showed that the condition of the Pedalen Beach waters was quite good for the growth of Phaeophyta. Keywords: alginate, macroalgae species, Phaeophyta, water substrate

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