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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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Articles 975 Documents

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Hubungan Antara Degradasi Mangrove Segara Anakan dan Penurunan Hasil Tangkapan Kepiting Bakau (Scylla sp.) di Kabupaten Cilacap, Provinsi Jawa Tengah Ismail Ismail; Sulistiono Sulistiono; Sigid Hariyadi; Hawis Madduppa
Jurnal Ilmu Pertanian Indonesia Vol. 24 No. 3 (2019): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

The area of mangrove Segara Anakan has a high economic value so that there is a high interest to various land uses in this area. This condition leads to the change in ecological function of the mangrove which has impacts on the decreased production of mangrove crabs. This study was desighed to analyze the areas of catching crabs related to mangrove ecosystem. This study was conducted for six months in the 3 mudcrab catching areas (Western Area, Central Area, and Eastern Area). The analysis used in this study was a one way ANOVA statistic for the crabs catching in these 3 catching areas, and a simple linear regression to analyxe the correlation betwen annual crab production and mangrove area. The results showsed that mud crabs catchings in the 3 areas is 5861.7; 6072.87; dan 7689.4 kg were significantly different (P<0.05) and the linear regression between the area of mangrove in Segara Anakan and crab’s production of the Cilacap Regency was Y= 14.951X-88357 with R2 = 0.54. These results described that the number of crabs catching was influenced by the condition of mangrove in the 3 catching areas while the regressionb analysis showed that the decreased mud crab’s production in Cilacap Regency was correlated to the decrease in the area of mangrove Segara Anakan.

Studi Biofisik pada Lanskap Hutan Rawa Gambut di Taman Nasional Sebangau: Kasus di Resort Mangkok Muhammad Abdul Qirom; Wawan Halwany; Dony Rahmanadi; Agustinus Panusunan Tampubolon
Jurnal Ilmu Pertanian Indonesia Vol. 24 No. 3 (2019): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Fire and illegal logging are main causes of peat swamp forest (PSF) degradation. Degradation causes biotic and abiotic changes of PSF. This reasearch was designed to collect data on description of species composition, carbon stock, soil physical factors, and soil macrofauna as indicators of changes in land condition due to PSF degradation. This research was conducted on degraded PSF area caused by fire and illegal logging. Sample plots were located based on the distance from the river i.e., <1.5; <4; and <10 km. Parameters measured included species composition of the stands and their ecological indices, carbon stock potention, soil physical condition (density), and soil macrofauna diversity. Research results showed that all of the parameters in those three locations were not significantly different. Based on those conditions, the main causes of degradation gave the same effects (biotic and abiotic changes) in the very ranged area with 10 km distances. These results were caused by the condition that all parameters measured were very sensitive to changes occurred in all experimental location.

Pengaruh Nanokitosan-Ag/Cu pada Perkembangan Penyakit Antraknosa pada Cabai Deden Dewantara Eris; Sri Wahyuni; Soekarno Mismana Putra; Ciptadi Achmad Yusup; Agustin Sri Mulyatni; Siswanto Siswanto; Eti Heni Krestini; Christina Winarti
Jurnal Ilmu Pertanian Indonesia Vol. 24 No. 3 (2019): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Plant disease that often attacks the chili both in pre- and postharvest is fruit rot or commonly called with antracnose. Antracnose is caused by the attack of fungus Colletotrichum capsici. To control it, fungicides which are effective, safe for environmental and human are needed. For that purpose, people develop chitosanbased fungicide. Chitosan has been widely reported has an antimicrobial role for viral, bacterial, and fungal which can cause disease in plants. Further development of chitosan in order to increase antimicrobial activity is by the synthesis of Ag/Cu-Chitosan nanoparticles. Based on tests, it is known that both in the laboratory and greenhouse scale, Ag-ChNPs at a dose of 500 ppm and Cu-ChNPs at a dose of 1000 ppm have an inhibition effect on growth of Colletotrichum capsici by 17.3 and 42.3% meanwhile the treatment of Ag-ChNPs at a dose of 500 ppm and Cu-ChNPs at a dose of 1000 ppm were significantly potential in suppressing the incidence of the diseases on Tanjung, Ciko, and Kencana varieties of chili in greenhouse. Microscopically, the activities of antimicrobial compounds of Ag/Cu-Chitosan nanoparticles cause a damage to the fungal hyphae which is characterized by malformations that lead to the inhibition of hyphae growth. In the petri dish it was shown by the emergence of inhibition zone in the form of clear area around the treated disc paper.

Dampak Penggunaan Aditif Distilat Asam Lemak Minyak Sawit pada Organoleptik Beras Analog Faleh Setia Budi; I Made Bagus Lingga Puspayana
Jurnal Ilmu Pertanian Indonesia Vol. 24 No. 3 (2019): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Commercial rice analogues have not been able to reduce the level of rice consumption because the price is relatively expensive. One of the contributing factors is the use of glycerol monostearate (GMS) as a lubricant agent in the extrusion process. Palm fatty acid distillate (PFAD) is a by-product of crude palm oil refining process with distillation technology which has the potency to be used as a lubricating agent in the extrusion process. PFAD prices which is cheaper than GMS is expected to be able to reduce the price of commercial rice analogues. The use of PFAD as a lubricating agent in the extrusion process of rice analogous manufacturing was predicted not to reduce the organoleptic properties of rice analogous significantly. This research aimed to access the influence of PFAD on the decrease of organoleptic properties of analog rice. Rice analogues were made from a mixture of corn flour, sago starch, and PFAD with 4 formulations i.e., 2, 3, 4, and 5%. Water was added until the final moisture content of the dough reached 40%. Extruder was operated at screw speed of 150 rpm and temperature 90oC. The organoleptic properties of produced rice analogous was analyzed. The result showed that the use of PFAD in extrusion process for rice analogous manufacturing decreased the organoleptic properties of cooked rice analogous (aroma, taste, texture, and overall) but it did not affect the attribute of color.

Evaluasi Risiko Iklim Wilayah Tembakau di Kabupaten Temanggung Tommy Harianto; Tania June; . Perdinan
Jurnal Ilmu Pertanian Indonesia Vol. 24 No. 3 (2019): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Tobacco is one of the important commodities that becomes an income source for farmers as well as Original Local Government Revenue of Temanggung Districts. Unfortunately, in the last few decades the failure of tobacco harvest due to climate variability was often occurred. The decrease in both quality and quantity due to rainfall irregularities has caused tobacco farmers get decrease in income. This study aims to find out the climate profile besides impact and risk analysis of climate on tobacco in Temanggung District. Methods used in this study were Polygon Thiessen to find out the rainfall patterns in Temanggung District, and Probability Density Function to find out the conditions of rainfall change in each sub-district. Furthermore, the relationship between rainfall anomaly and temperature with tobacco productivity was analyzed using linear regression and t-test methods. The rainfall influence showed a negative correlation with tobacco productivity with coeffiicients of correlation and determination of r = -0.38 and R2 = 0.14, respectively, while the average temperature and maximum monthly temperature had a negative and significant effect on tobacco productivity. Rainfall anomaly in all sub-districts of Temanggung District showed a negative correlation with and affected tobacco productivity during June-September that was the phase of tobacco harvest. The effect of rainfall and temperature on tobacco productivity in Temanggung District needs to be a concern for local governments and tobacco farmers in efforts for adaptation and mitigation processes.

Intensitas Fungsi Modal Sosial untuk Penguatan Posisi Tawar Pengrajin dalam Pemasaran Souvenir Olahan Limbah Kelapa . Dumasari; Sulistyani Budiningsih; Wayan Darmawan; Imam Santosa
Jurnal Ilmu Pertanian Indonesia Vol. 24 No. 3 (2019): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

A weak bargaining position in product marketing is a serious problem for farmers including those who diversify their livelihood patterns as souvenir craftsmen. Collector traders and retailers are dominant to set prices for souvenirs. Souvenir craftsmen surrender to accept any price level determination. As a consequence, souvenir craftsmen in the villages of Baturaden and Purbalingga Wetan have difficulties in earning profits from micro-souvenir businesses. The results of this study found that a solution to overcome the problem of the weak bargaining position of craftsmen in marketing souvenir products is through the use of a social-capital creation approach. The intensity of network functions of cooperation, mutual trust, values, and norms have different values in each bargaining position activity. Price domination by collectors and retailers is not only due to the dilemma of patron-client relationships. The qualities of souvenir products that are still not qualified turned out to be the cause of the weak bargaining position of craftsmen. The creation of social capital has a real function to strengthen the bargaining position of craftsmen in marketing souvenirs. The intensity of the function of social capital needs to be increased through the development of product quality, bargaining courage, and the ability to make price decisions in an agreement.

Organ Pencernaan dan Status Escherichia coli Usus Puyuh yang Diberi Tepung Defatted Maggot (Hermetia illucens) sebagai Pengganti Meat Bone Meal Vita Kurnia Citra; Widya Hermana; Rita Mutia
Jurnal Ilmu Pertanian Indonesia Vol. 24 No. 3 (2019): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

This study was designed to evaluate the effect of substitution of Meat Bone Meal (MBM) with defatted maggot (Hermetia illucens) meal (DMM) on weight and length of digestive organs and the status of Escherichia coli in quail intestine. This study used 285 female quails aged six weeks with an average weight of 153.3±3.7 g. This experiment used Completely Randomized Design with three treatments, five replications, and each replication consisteds of 19 quails. The treatments were P1 = 0% DMM in diet, P2 = 3.1% TDM in diet (to substitute 50% of MBM protein), and P3 = 6.18% TDM in diet (to substitute 100% of MBM protein). The measurement of the digestive organs was performed by weighing each of the digestive organ and compared with the live weight multiplied by 100%. The measurement of the relative length was calculated by comparing the length of the organs by live weight and multiplied by 100%. The calculation of the concentration of E. coli used the method of dilution according to Waluyo (2005). The results showed that there was no significant effect on the percentage and the relative length of digestive organs. Defatted maggot meal has the activity as a natural antimicrobial that can decrease the Escherichia coli in quail intestine by 99.99% along with the increase in defatted maggot meal to 6.18% in diet. It can be concluded that protein from defatted maggot (Hermetia illucens) meal can be used up to 6.18% as an alternative to replace MBM without alteration in health status of the quail.

Perilaku Kunjungan dan Efisiensi Penyerbukan Heterotrigona itama (Cockerell) dan Tetragonula laeviceps (Smith) (Hymenoptera: Apidae) pada Labu Siam Qurrotu A’yunin; Aunu Rauf; Idham Sakti Harahap
Jurnal Ilmu Pertanian Indonesia Vol. 24 No. 3 (2019): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Main insect pollinator of chayote in the neotropics is the stingless bees. In Indonesia, there is no information available on chayote pollination. Research was conducted with the objective to study the flowering phenology of chayote and the role of two specieses of stingless bees Heterotrigona itama (Cockerell) and Tetragonula laeviceps (Smith) (Hymenoptera: Apidae) on chayote pollination. Measurements included the number of staminate and pistillate flowers, volume of nectar and sugar concentration, floral handling time and visitation rate, and fruit set. Chayote plants produced more staminate flowers than pistillate flowers, with the ratio of 18:1. There was no difference in nectar volume and sugar concentration between staminate and pistillate flowers. H. itama and T. laeviceps visited both type of flowers, with the peak of daily visitation were occurred at 08:30-10:30 am local times. There were significant differences in the floral handling time and foraging rate of H. itama and T. laeviceps. Pollen load was significantly higher in H. itama (2137.50±184.49 grains) than those in T. laeviceps (1675.00±110.47 grains). H. itama seemed to deposite more pollen (14.1±4.1 grains) on stigma than T. laeviceps (9.8±3.1 grains). Flowers prevented from insect visits resulted in zero fruit set. Single flower visit by H. itama and T. laeviceps resulted in 60 and 40% fruit set, respectively. Higher percent of fruit set (80-85%) was noticed in open-pollination, suggesting that multiple visits by insect pollinators might increase the chances of successful pollination.

Keragaman Morfologi Daun Padi Lokal Indonesia dan Korelasinya dengan Ketahanan Penyakit Hawar Daun Bakteri Wage Ratna Rohaeni; Dini Yuliani
Jurnal Ilmu Pertanian Indonesia Vol. 24 No. 3 (2019): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Bacterial leaf blight (BLB) is one of the major diseases of rice plants mainly in irrigated rice caused by pathogenic bacteria Xanthomonas oryzae pv. oryzae (Xoo). Leaf morphology becomes an interesting character to be investigated due to its relationship with the intensity of BLB disease, because the leaf is the part of plant which is infected by the bacteria. The purpose of this research was to obtain information on the variability of leaf morphology and its correlation with BLB diseases, to support plant breeding program of BLB disease-resistant rice varieties. A total of 25 local rice accessions were characterized phenotypically. Leaf morphological characters were examined without replication, while in Xoo resistance (pathotype IV) test was done by using randomized block design with three replications. Characterization on leaf morphology indicated that all local rice accessions had green collar, transparent auricle color, white ligule color, and 2-cleft ligule shape. In four weeks after inoculation, four accessions (Ketan Lomah Hitam, Bumbuy Inih, Gonggoi, and Waren) showed disease severity percentages of BLB diseases on the range between 13-16%. These observations indicated that these accessions had slightly sussceptible response to BLB diseases wich were better than the other accessions. Leaf-surface morphology was positively correlated with BLB disease. The four accessions were feathery or slightly hairy with a short-sized leaf. The results of this research could be used as a reference for developing of BLB resistance rice varieties.

Skreening Alga Hijau Halimeda opuntia (Linnaeus) sebagai Antioksidan dari Pesisir Aceh Barat Mohamad Gazali; . Nurjanah; Neviaty Putri Zamani
Jurnal Ilmu Pertanian Indonesia Vol. 24 No. 3 (2019): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

H. opuntia is one of the green algae that distributes sufficiently dominant at the coastal of West Aceh. This research aims to screen the green algae H. opuntia that is potentia as an antioxidant agent. Extraction method in this research used mono maceration. The solvents that are used including ethanol (polar), ethyl acetate (semi-polar), and n-hexane (non-polar). With those three solvents it was obtained three crude extracts including ethanol crude extract, ethyl acetate crude extract, and n-hexane crude extract. Subsequently, the crude extracts were used to conduct the assay including phytochemical assay and the antioxidant activity with DPPH method. The results of phytochemical assay showed that ethanol crude extract of H. opuntia was detected to have active compounds including alkaloids, flavonoid, phenol, tannin, and steroids whereas ethyl acetate extract of H. opuntia was detected to contain phenol compound. Total phenol content of ethanolic extract of H. opuntia = 2460.25 mg GAE/g and ethyl acetate extract = 972.68 mg GAE/g. Antioxidant activity of ethanolic extract has IC50 value = 143.63 mg/L whereas ethyl acetate extract has IC50 value = 75.51 mg/L with Vitamin C as a positive control. This results show that extract of H. opuntia possesses a vital potency as an antioxidant agent that give value added in pharmacy industries.

Page 44 of 98 | Total Record : 975

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