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Jurnal Ilmu Pertanian Indonesia

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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.

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Search results for , issue "Vol. 25 No. 2 (2020): Jurnal Ilmu Pertanian Indonesia" : 20 Documents clear

Phytochemical Contents of Torbangun (Coleus amboinicus Lour) from Fractionation of Pressurized Liquid Extraction Farida Laila; Dedi Fardiaz; Nancy Dewi Yuliana; Muhammad Rizal Martua Damanik; Fitriya Nur Anissa Dewi
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 2 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Coleus amboinicus (Lour) (torbangun) has been used traditionally as a breast milk stimulant, flavoring agent in many cuisines, and reported to possess many pharmacological values. The aim of this study was to explore the utility of the Pressurized Liquid Extraction (PLE) technique to identify the phytochemical contents of torbangun. In this study, total phenolic content and flavonoid in torbangun were determined using spectrophotometric method. The GC-MS analysis was used to identify the chemical constituents of torbangun, which was sequentially extracted with a wide range of solvent or solvent mixture from nonpolar-moderately polar and finally polar solvent. Total phenolic and flavonoid contents in the methanol extract of torbangun were 42.17±2.96 mg GAE/g and 11.20±0.58 mg QE/g, respectively. The identified chemical constituents in torbangun were sugar, hydrocarbon, ketone, terpenes, phenolics, fatty acid, fatty alcohol, steroids, alkaloids, and others, whereas the dominant constituents were phenolic compound, alkane, and sugar. In conclusion, this study demonstrated the effectiveness and rapid extraction of the PLE technique. Many valuable compounds in torbangun were extracted using gradual composition of solvent and were able to identify certain compounds in different polarities of solvents that are important in functional food preparation, pharmaceutical, and metabolomics research. Keywords: bioactive, extract, nontoxic, plant, solvent

Ketergantungan Tiga Jenis Tanaman Kehutanan terhadap Mikoriza pada Media Tanah Bekas Tambang Pasir Silika Putri Aurum; Sri Wilarso Budi; Prijanto Pamoengkas
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 2 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

One effort to support the success of reclamation and rehabilitation of ex-silica sand mines is to improve the quality of seedling planted with mycorrhizal inoculation. Each plant has a mycorrhizal dependency which varies depending on the plant species and the level of soil fertility. This study aimed to analyze the mycorrhizal dependency of Kadam (Anthocephalus cadamba), Red Sengon (Albizia chinensis), and Kaliandra (Calliandra calothyrsus) grown on soil growing media from post silica sand mining and amended with compost and lime. The study used completely randomized design with a split plot design consist of two factors, first factor was mycorrhizal inoculation in the form of MycoSilvi inoculum, consisting of two levels and the second factor was soil ameliorant in the form of lime and compost consisting of six levels, each treatment was repeated five times. The results showed that the treatment of lime and MycoSilvi addition showed the highest percentage of mycorrhizal dependency on Kadam, Red Sengon and Kaliandra seedlings, which were 76, 62, and 59% respectively. The addition of lime and compost decreased the degree of relative mycorrhizal dependency of three plants species tested, in line with increasing available P in soil growth medium. Keywords: mycorrhizal dependency, MycoSilvi, post mined soil, soil ameliorant

Peningkatan Pembungaan dan Hasil Biji Bawang Merah Varietas Bima melalui Vernalisasi dan Aplikasi GA3 Dian Fahrianty; Roedhy Poerwanto; Winarso Drajad Widodo; Endah Retno Palupi
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 2 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

The low production of true seed of shallot (TSS) is mostly caused by a low flowering rate. The research was aimed to increase the flowering rate and seed yield in lowland (240 masl) and highlands (1250 masl) by vernalization and submersion of the seed bulbs in GA3 before planting. The research was arranged in a completely randomized block design with 2 factors and replicated four times. The first factor was vernalization, i.e. without and with vernalization at 10±2°C for 30 days, and the second factor was the submersion of the seed bulbs following vernalization in GA3 at the concentrations of 0, 100, and 200 ppm for 1 h. Parameters measured were time of 50% flowering (days after planting), percentage of flowering plants, number of umbel per plant, number of floret per umbel, fruitset, seed weight per umbel and per plant, as well as the percentage of seed germination. The result suggested that when production of TSS of var. Bima is to be carried out in the lowland then the seed bulbs had to be vernalized at 10±2°C for 30 days which will increase the flowering percentage and seed yield. If the production of TSS is to be carried out in the highland then vernalization at 10±2°C for 30 days will increase the flowering percentage and seed yield. However, if for any reason vernalization is impossible to proceed then the submersion of the seed bulbs in 100 ppm GA3 for 1 h was sufficient to increase the flowering percentage and seed yield. The produced seeds (TSS) either in the low as well as in the highlands had high germination percentages. Keywords: germination, highland, lowland, umbel, true seed of shallot

Studi Pengembangan Jagung Berkelanjutan melalui Integrasi dengan Sapi di Tuban, Jawa Timur Suwarto Suwarto; Iwan Prihantoro
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 2 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Biji-bijian dan daging adalah dua komoditas penting di Indonesia. Jawa Timur adalah sentra produksi utama kedua komoditas tersebut sehingga perlu diusahakan keberlanjutannya. Permasalahan dalam produksi jagung adalah peningkatan harga input pupuk anorganik dan keterbatasan ketersediaan bahan tersebut. Permasalahan produksi ternak adalah keterbatasan pakan. Biomas batang, daun, kelobot, dan tongkol sebagai produk samping jagung dapat digunakan menjadi pakan ternak. Sebaliknya, kotoran sapi dapat digunakan sebagai sumber pupuk. Integrasi kedua sistem ini menjadi peluang untuk keberlanjutan produksi. Studi ini dilakukan untuk mengetahui keberlanjutan produksi jagung dan sapi di Tuban, Jawa Timur melalui penentuan skala dan tingkat keterpaduan integrasi. Survei terhadap 23 orang petani anggota Kelompok Tani Makaryo, Desa Waleran, Kecamatan Grabagan dilakukan untuk mengetahui pengusahaan jagung dan sapi. Untuk mengetahui efisiensi pemupukan, di lahan kelompok tani dilakukan penelitian dengan menggunakan empat dosis urea, yaitu 0, 100, 200, dan 300 kg/ha, dengan pupuk dasar 300 kg NPK Phonska dan 10 ton pupuk kandang. Skala integrasi yang dapat dilaksanakan oleh satu rumah tangga petani adalah 1 ha jagung dengan 2 ekor sapi dengan tingkat keterpaduan ekologis 1,1; ternak sapi memasok pupuk kandang untuk 1,1 ha kebun jagung. Penggunaan urea sebanyak 200 kg menghasilkan biji sebanyak 6.890 kg dan penerimaan tertinggi sebesar Rp21.288.000. Urea dihemat 100 kg ha-1 atau 9.651 ton untuk luas tanaman jagung 96.505 ha/tahun di Tuban. Secara ekonomis, integrasi peternakan sapi dengan kebun jagung dapat menghemat input luar sebanyak Rp230.000/ha atau Rp20.651 miliar/tahun. Pertanian jagung yang terintegrasi dengan sapi dapat mewujudkan pertanian berkelanjutan bermasukan luar rendah. Kata kunci: bermasukan luar rendah, biomas, integrasi, pakan, pupuk kandang

Pertumbuhan dan Produksi Rimpang Kencur (Kaempferia galanga L.) pada Ketinggian Tempat yang Berbeda Subaryanti Subaryanti; Yohana Caecilia Sulistyaningsih; Dyah Iswantini; Triadiati Triadiati
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 2 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Galanga (Kaempferia galanga L.) is one of the potential medicinal plants with high demand. Therefore, galanga cultivation was still quite promising. To obtain the optimum growth and high rhizome production, the superior galanga accessions are required. The optimal growth and high production of galanga accessions will be obtained if cultivated at the area with appropriate altitude. The purpose of the study was to obtain galanga accession with a better growth and high yield at the area with a suitable altitude. This study used split-plot design; altitude as a main plot and accession as a subplot. The location as a main plot consisted of altitudes of 214 and 780 masl. This study used seven accessions i.e., accession of PBG (Purbalingga), CLP (Cilacap), PWJ (Purworejo), KRA (Karanganyar), PCT (Pacitan), MAD (Madiun), and GAL2 (Galesia 2) as control. The results showed that different altitudes significantly affected the total chlorophyll content, stomatal conductance, transpiration rate, photosynthesis rate, dry weight, and rhizome yield. The number of leaves was influenced by altitude and accession of galanga. The interaction between altitude and accession of galanga significantly affected the leaf area and the soluble sugar concentration in the galanga rhizome. The rhizome yield at low altitude was higher than in high altitude. PBG (Purbalingga) and PWJ (Purworejo) accessions have the potential to be developed in locations with an altitude of 214 masl. Keywords: altitude, Kaempferia galanga, rhizome

Pengaruh Asam Humat terhadap Produktivitas dan Serapan Nitrogen pada Tanaman Kangkung Darat (Ipomoea reptans Poir.) Deris Trian Rahmandhias; Diah Rachmawati
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 2 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

An uncertain climate and infertile soils are factors that cause fluctuations in crop yields. In addition, improper application of fertilizers causes kangkong plants to not absorb nutrients optimally. The application of humic acid as a biostimulant can be used to improve soil structure and optimize the productivity of kangkong through the absorption of nutrients from fertilizers or elements around plants. This study aims to study the effect of application of humic acid on growth, productivity, and nitrogen uptake in kangkong (Ipomoea reptans). This research was carried out with completely randomized design (CRD) with a single factor including 7 treatments, namely control, application of humic acid through leaves at a dose of 5 mg.L-1, 20 mg.L-1, and mg.L-1 and through roots a dose of 5 mg.L-1, 20 mg.L-1, and 35 mg.L-1. Planting media used without the addition of basic fertilizers to see the most effective effect of the application of humic acid. The results showed that application of humic acid dose of 20 mg / L through leaves and roots caused an increase in plant height, stem diameter, number of leaves, biomass and nitrogen uptake of kangkong. The highest chlorophyll level of kangkong plants was produced in the treatment of humic acid dose of 35 mg.L-1 through leaves. Based on the research it can be concluded that the application of humic acid through leaves and roots increase growth, productivity and nitrogen uptake in kangkong. Keywords: humic acid, Ipomoea reptans, nitrogen, productivity

Strategi Pencegahan Kebakaran Hutan dan Lahan di Kesatuan Pengelolaan Hutan Kubu Raya, Ketapang Selatan, dan Ketapang Utara di Provinsi Kalimatan Barat Arief Rachman; Bambang Hero Saharjo; Eka Intan Kumala Putri
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 2 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

West Kalimantan Province, Indonesia, is an area that is crossed by the equator and its territory is mostly peat area. The aim of this study was to examine the impact of losses due to forest and land fires and srategies for preventing forest and land fires in the Forest Management Unit (FMU) in West Kalimantan Province. This research was conducted from May to October 2018 in the FMU Kubu Raya, the FMU South Ketapang, and FMU North Ketapang. The research method used was descriptive method. Vegetation Data were measured with the stratified random sampling in 20 x 100 m transect. Social economic data were taken by using 30 respondents from 6 vilages with based on purposive sampling. Data analysis regarding losses due to forest and land fires was performed using the economic valuation value analysis while forest and land fires' prevention strategies in the FMUs were determined using SWOT and IE (Internal-External) Matrix. The results showed that the area of forest and land fires reached 50 ha with a total loss of IDR 8 billion. Forest and land fire prevention strategies using SWOT were determined in the growing and developing parts with the implemented alternative strategies, i.e., intensive and integrative. Keywords: economic valuation, forest management, peatland, SWOT, West Kalimantan

The Diversity of Insect in Paddy Field in Karawang, West Java with Different Pest Management Techniques Lutfi Afifah; Darso Sugiono
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 2 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

The practice of rice crop cultivation will affect the trophic structure and the diversity of insects that are formed. One of the common cultivation practices carried out by farmers was the control of pests by using pesticides. This study aimed to find out which pest management strategies that are effective in maintaining environmental health and understanding how natural enemies were affected by the application of synthetic pesticides. The first treatment was paddy field with integrated pest management (IPM), the second treatment was conventional rice field with a technique of chemical pest management (C-T), while the third treatment was mixed pest management (M-T). Insect sampling was conducted using sweep net, pitfall trap, and direct observation for 10 weeks after planting. Overall, it was found 100 morphospecies, 9 Orders, 56 families, with a total abundance of 6242 individuals per planting season. Based on functional roles it was found 39% as herbivores, 30% as predators, and 14% as parasitoids, 1% pollinators, and 13% decomposers. High insect diversity and abundance were found in the plots using low synthetic pesticides. The C-T control plot had a lower relative abundance of herbivorous insects, parasitoid insects, predators, and decomposers than the other control plots. H' and D index in the Integrated Pest Management (IPM) and Mixed Pest Management (M-T) plots did not show significant differences but differed significantly from the Chemical Control plot (C-T). Therefore, controlling the herbivore insects could apply the pest management based on IPM strategies. Keywords: Diversity of insects, integrated pest management (IPM), natural enemies, pesticides, rice pests

The Fruit Characteristics of Ambon Forest Nutmeg (Myristica fatua Houtt) and Banda Nutmeg (Myristica fragrans Houtt) Karmanah Karmanah; Slamet Susanto; Winarso Drajad Widodo; Edi Santosa
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 2 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Ambon Forest nutmeg (Myristica fatua Houtt) is one of the endemic plants in Indonesia. The morphological characteristic of Ambon Forest nutmeg is slightly different from that of Banda nutmeg (Myristica fragrans Houtt) i.e., it is not used as spices, but its oil is used as a lamp oil. This study aimed to determine the chemical components and essential oils of Ambon Forest nutmeg derived from its seeds, mace, and flesh compared to Banda nutmeg. Extractions of essential oils were performed using a steam hydro-distillation. Analysis of chemical compositions and contents of essential oil was carried out using a Gas Chromatography-Mass Spectrometry (GCMS) instrument and SNI 06-2388-2006 method. The essential oil contents in Ambon Forest nutmeg were relatively low, i.e., 0.63% in the seeds, 0.30% in the mace, and 0.04% in the flesh compared to Banda nutmeg i.e., 1% in the seeds, 40% in the mace, and 3.5% in the fruit flesh. The chemical compositions of essential oils showed that M. fatua Houtt contained 12 compounds in the seeds, 24 compounds in the mace, and 17 compounds in the fruit flesh, while for Banda Nutmeg, the contents of essential oils were found 18 compounds in the seeds, 10 compounds in the mace, and 15 compounds in the fruit flesh. M. fatua Houtt contained the highest Copaene, i.e., 28.41% in the seeds, 10.42% in the mace, and 23.33% in the fruit flesh. Myristicin, as the main marker compound of nutmeg oil, was also found in Ambon Forest nutmeg i.e., 1.3% in the seeds, 1.16% in the mace, and 5.19% in the fruit flesh. However, these results showed lower contents when compared to Banda nutmeg with Myristicin contents of 8.72% in the seeds, 10.14% in the mace, and 10.46% in the fruit flesh. Keywords: Essential oil, Myristica fatua Houtt, Myristica fragrans Houtt, Nutmeg

Isolation and Capability of Dark Septate Endophyte Against Mancozeb Fungicide Jean Nihana Manalu; Bonny Poernomo Wahyu Soekarno; Efi Toding Tondok; Surono Surono
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 2 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Mancozeb is a group member of dithiocarbamat fungicides that most widely applied in the field. The use of mancozeb causes residues that have negative effects on agricultural production system and on agricultural environment. This research aimed to obtain dark septate endophyte (DSE) fungal isolates that are tolerant to mancozeb fungicide. The study was consisted of three steps, i.e., the isolation of DSE fungi from chili roots, the effect of DSE fungal isolates on chili seeds, and the growth ability of DSE isolates on medium supplemented with mancozeb. Thirteen DSE fungal isolates were isolated from chilli pepper roots and grown in the field assumed to be contaminated by pesticides. The isolates of DSE fungi caused the growth of chili seeds were normal and abnormal. Seven DSE isolates were able to grow well at PDA medium suplemented with mancozeb at concentrations of 100, 200, 400, and 800 ppm with different levels of relative growth inhibition. Mancozeb on PDA medium influenced the mycelial growth and colony color of DSE fungal isolates. The biomass of DSE fungal isolates were reduced when they were grown at malt extract broth (MEB) medium suplemented various levels of mancozeb. Keywords: dithiocarbamat, relative growth inhibition, tolerant

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