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Agrotrop : Journal on Agriculture Science

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Published by Universitas Udayana

ISSN : 2088155X EISSN : 26544008 DOI : -

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

Journal AGROTROP

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Articles 400 Documents

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Pengaruh Kombinasi Naphthalene Acetic Acid (NAA) –Benzyl Amino Purine (BAP) dan Jenis Eksplan pada Mikropropagasi Anggrek Vanda tricolor Lindl. var. suavis AYU INDAH WIDAYANTI; RINDANG DWIYANI; HESTIN YUSWANTI
Agrotrop : Journal on Agriculture Science Vol 4 No 1 (2014)
Publisher : Fakultas Pertanian Universitas Udayana

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The Effect of Combination of BAP-NAA and Explant Types on Micropropagation of Orchidof Vanda tricolor Lindl. var. suavisThe objectives of the research was to investigate the effect ofcombination of NAA–BAP, type of explant and their interactions on shoot initiation in micropropagationof Vanda tricolor L. var. suavis. The factorial experiment consisted of two factors that was arrangedby completely randomized design (CRD) with three replications. The first factor was combination ofNAA-BAP i.e. M0= MS medium without any plant growth regulator; M1= MS + 0,1 mgL-1 NAA +0 mgL-1 BAP; M2= MS + 0,1 mgL-1 NAA + 0,1 mgL-1 BAP; M3= MS + 0,1 mgL-1 NAA + 1 mgL-1 BAP ; and M4= MS + 0,1 mgL-1 NAA + 10 mgL-1 BAP. The second factor was explant type i.e.shoot tip (B1) and shoot base (B2). The results showed that there was no interaction between factorsfor all variable observed. Medium M0 (MS medium without any plat growth regulator) and explant ofB1 (shoot tip) gave the highest number of the percentage of explants producing shoots and the highestnumber of shoots per explant.

KOMUNITAS ARTROPODA PENGHUNI TAJUK DI PERTANAMAN JAGUNG TAMRIN ABDULLAH; NURARIATY AGUS; AUNU RAUF
Agrotrop : Journal on Agriculture Science Vol 1 No 2 (2011)
Publisher : Fakultas Pertanian Universitas Udayana

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Canopy Arthropod Community Dwellers in Maize Planting. Dwellers the canopy arthropod community structure observed in maize planting in the Village Bajeng, District of North Polombangkeng, Takalar District, South Sulawesi. Observation of the canopy arthropod dwellers performed using suction machine. The results showed that the arthropod community on corn cropping consists of arthropod natural enemies, fitofag and other arthropods. Most of the arthropods that act as predators, which consists of four insect family is Formicidae, Coccinellidae, Carabidae, Gryllidae, and the two spider families is Lycosidae and Linyphiidae. Maize crop canopy arthropod dwellers generally is formicid, coccinellid, cicadellid, and pentatomid. In the maize crop canopy, formicid and aphid abundance were higher in the edge plots, whereas coccinellid, lycosid, and linyphiid higher in the center of the plot.

Uji Adaptasi Padi Sawah (Oryza sativa L.) Galur Harapan terhadap Hasil dan Ketahanan Penyakit Tungro di Subak Lepang, Desa Takmung, Kabupaten Klungkung PUTU SUGITA; GEDE WIJANA; I KETUT SUADA
Agrotrop : Journal on Agriculture Science Vol 8 No 1 (2018)
Publisher : Fakultas Pertanian Universitas Udayana

Adaptation Test of Paddy Rice (Oryza sativa L.) Expected Line Against Results and Disease Resilience Tungro Disease in Subak Lepang, Takmung Village, Klungkung Regency. Adaptation test of expected line paddy (Oryza sativa L) on its yield and tungro-resistance in Subak Lepang were conducted from July to September 2016. The aims of this test were to examine the growth and productivity of expected line paddy and its resistance to tungro. Twelve lines and two comparated varieties were set using Randomized Block Design. Dependent variable were growth, yield and age of 50% productive spikelets were gain, duration of yield, number of panicles, length of panicle, number of filled spikelets in each panicle, number of empty spikelets in each panicle, total spikelets, sweed set, weight of 1000 spikelets, weight of 14% water content of 1000 spikelets, weight of dry spikelets in a hectare (ton) and precentage of tungro’s invation. Statistical analisis showed that BP16732E-1 as expected line was well adapted to test, which were give better growth, yield and tungro resistency, and 13.139% higher yield compared to Ciherang variety. Future research on adaptation in different season and ecosystem should be conducted to determine this strain as new supreme strain.

Pengaruh Kompos Kotoran Sapi dan Mulsa Jerami Padi terhadap Pertumbuhan dan Hasil Polong Muda Kedelai Edamame (Glycine max (L) Merill) di Lahan Kering NI KETUT SUDARMINI; NI LUH KARTINI; I MADE SUDARMA
Agrotrop : Journal on Agriculture Science Vol 5 No 2 (2015)
Publisher : Fakultas Pertanian Universitas Udayana

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Effects of Cow Manure Compost and Paddy Straw Mulch on the Growth and Yield ofYoung Pods of Edamame Soybean ( Glycine Max (L) Merill ) in The Dry Land. The loworganic matter in soil is one of the factors causing low levels of soil fertility. The use ofcomposted cow manure and paddy straw mulch can increase nutrient uptake in soybeanplants. The aim of this study was to determine the effect of cow manure compost and paddystraw mulch on the growth of Edamame soybeans in dry land. This experiment used factorialrandomized block design (RBD). The research was conducted from March to June 2015 inDenpasar. The result of the study showed that the application of cow manure compost andpaddy straw mulch at 5 t.ha-1 each gave a significant interaction on the components of growthand yield, produced 21.67 kg of young pods. plot-1 and 10.83 tons ha-1. In the single factor,compost of 5 t.ha-1 produced 19.63 kg of young pods. plot-1 and 9.82 tons ha-1. Paddy strawmulch of 5 t.ha-1 resulted in 15.87 kg young pods plot-1, and 7.93 tons ha-1. High yieldpotential between the two factors was influenced by an adequate availability of nutrients.

Mekanisme Penambatan Nitrogen Udara oleh Bakteri Rhizobium Menginspirasi Perkembangan Teknologi Pemupukan Organik yang Ramah Lingkungan GEDE MENAKA ADNYANA
Agrotrop : Journal on Agriculture Science Vol 2 No 2 (2012)
Publisher : Fakultas Pertanian Universitas Udayana

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Interaction of microbes with human living in the nature are able to seen from their capabilitiesimproving the environmental by composting waste of agriculture to become organic fertilizer. In thecontrary, the epidemic and infectious phatogens are also its contribution. In agriculture sector, the livingof microbes has been explored to keep the soil fertile, and to improve growth and plant production.The symbiosis of Rhizobium bacteria with the specific host plant from legumes is able to run because ofboth side giving a signal, where host plant give an organic molecoles called inducer. From the bacteriaside, also give an organic materials called nod factor. The step of nitrogen fixation mechanism can bedescribed from infection of root legume as the first step, followed by the nitrogen fixation by thebacteroid and synthesis of the nitrogen organic by host plant as the last step. These natural processesinspire finding and development of the ecologically organic fertilizer technology.

TINGKAT BAHAYA EROSI PADA KAWASAN HUTAN PRODUKSI WILAYAH GEROKGAK, KABUPATEN BULELENG, BALI WIYANTI -
Agrotrop : Journal on Agriculture Science Vol 1 No 2 (2011)
Publisher : Fakultas Pertanian Universitas Udayana

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Erosion Hazard on Production Forest Area at Gerokgak, Buleleng, Bali The experiment about erosion hazard has been conducted at production forest area at Gerokgak, Buleleng, Bali. The aims of the research are to predict erosion and determine the erosion hazard. The method used in this research is USLE (Universal Soil Loss Equation). Land unit was classified base on slope, land use pattern, and soil type. The result of the research showed that soil erosion was classified as moderate to heavy. The moderate erosion was occurred at land unit 18 (58.104 tons/ha/year); heavy erosion at land unit 19 (65.059 tons/ha/year); 20 (31.342 tons/ha/year); and 24 (52.895 tons/ ha/year); and very heavy erosion at land unit 16 (934.799 tons/ha/year); 17 (668.072 tons/ha/year); 21 (266.799 tons/ha/year); 22 (285.735 tons/ha/year); 23 (65.652 tons/ha/year), 24 (260.962 tons/ ha/year); 25 (295.207 tons/ha/year); 26 (249.304 tons/ha/year and 271.329 tons/ha/year); and 27 (130.757 tons/ha/year).

Kajian Status Kesuburan Tanah untuk Menentukan Pemupukan Spesifik Lokasi Tanaman Padi I NYOMAN PUJA; I WAYAN DANA ATMAJA
Agrotrop : Journal on Agriculture Science Vol 8 No 1 (2018)
Publisher : Fakultas Pertanian Universitas Udayana

Study of Soil Fertility Status to Determine Specific Fertilizer Locations of Rice Plants. Soil fertility status is one of the tools to determine balanced fertilization. The use of inorganic fertilizers continuously at high doses will accelerate the depletion of other elements which cause imbalance of nutrients in the soil. This research was carried out in Abang-Karangasem District. The purpose of this study was to compile location-specific fertilizer recommendations based on their soil fertility status. This research was conducted by survey and laboratory analysis method with activity step: preparation (making of land unit), field survey, soil sample analysis, evaluation of soil fertility status and determination of location-specific fertilizer recommendations. The results showed that soil fertility status in Abang District is low and medium. Recommended fertilization without straw return for areas with low fertility status are 250 kg Urea/ha, 100 kg SP36/ha and 50 kg KCl/ha. Whereas if with straw returned (5 t/ha) are 230 kg Urea/ha, 100 kg SP36/ha and 50 kg KCl/ha. Recommended fertilization without straw return for areas with medium fertility status are 250 kg Urea/ha, 75 kg SP36/ha and 50 kg KCl/ha. Whereas if with straw returned (5 t/ha) are 230 kg Urea/ha, 50 kg SP36/ha and 0 kg KCl/ha.

Kajian Kualitas Beberapa Pupuk Kompos Produksi Simantri di Daerah Bali Sesuai dengan Standar Nasional Indonesia Tahun 2004 (SNI 19-7030-2004) A.A. NYOMAN SUPADMA; I MADE MEGA; I MADE DANA
Agrotrop : Journal on Agriculture Science Vol 8 No 2 (2018)
Publisher : Fakultas Pertanian Universitas Udayana

Study of the Quality of Some Compost Fertilizer Simantri Production in Bali in Accordance with Indonesian National Standard-2004 (SNI 19-7030-2004). In Bali currently has circulated various types of compost, but testing of the quality most have not done regularly. Efforts to protect the consumer need to be implemented through the compost quality testing in the laboratory. This is done to prevent counterfeiting and ensure the quality of the compost is already in line with the quality standard SNI-2004. Among compost circulating in Bali, is compost Gapoktan Simantri production. The purpose of this study is to determine some of the physical and chemical properties of some Simantri’s compost circulating in Bali, whether in accordance with the criteria of the quality of compost SNI 19-7030-2004. Compost quality standards SNI-2004 are water content (<50%), pH (6.8 to 7.49), total-N (> 0.4%), C-organic (9.80 to 32%), P2O5 (> 0.10%), K2O (> 0.20%), C / N ratio (10-20), organic matter (27-58%), smells like soil, blackish color, and the temperature not hot. Compost sampling method for testing a composite on Gapoktan Simantri in Bali as many as 20 samples of compost. Parameters include: water content (grafimetri), pH (electrode glas), total-N (method of Kjeldhal), P2O5 and K2O (method of extracting HCL 25%), organic C (method of Walkley and Black), material organic, EC (coductometer), C/N ratio, color, temperature, and smell of the compost. Data obtained from the analysis in laboratory are compared to standard quality of compost according to SNI 19-7030-2004. The results showed that the total-N of compost Simantri is very high (1.13 to 2.11%), P content is very high (0.103 to 0.123%), K content is very high (0.902 to 2.342%), C-organic is very high (14.08 to 25.48%), C/N ratio (10.52 to 18.52), organic matter (24.87 to 43.93%) (all of these parameters in accordance with SNI-2004) ; pH (6.65 to 8.36) (some not suitable SNI-2004), EC (2.31 to 8.46 mmhos/cm2) (some very high), moisture content (36.60 to 56.60%) (some not suitable SNI-2004), blackish color, smells like soil, and temperature not hot (according to the standard SNI-2004).The majority (57.14%) of compost Simantri examined in accordance with the standard quality compost SNI-2004, but (42.86%) is not in accordance (pH and water content of compost).

Evaluasi Sifat Ovisidal dan Nimfasidal Insektisida Buprofezin 100 g/l terhadap Telur dan Nimfa Wereng Coklat, Nilaparvata lugens (Stal.) (Hemiptera: Delphacidae) BAEHAKI SUHERLAN EFFENDI; EKO HARI ISWANTO; AMIR HAMZAH
Agrotrop : Journal on Agriculture Science Vol 6 No 2 (2016)
Publisher : Fakultas Pertanian Universitas Udayana

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Evaluation of ovicidal and nymphcidal properties of buprofezin 100 g/linsecticide to eggs and nymphs of brown planthopper, Nilaparvata lugens(Stal.) (Hemiptera: Delphacidae). Research was carried out in screen house ofSukamandi, Indonesian Center for Rice Research (ICRR) in the wet season of 2013. Theresearch used randomized block design with 5 doses levels insecticide treatment of buprofezin100 g/l and four replications. The buprofezin treatments were 250, 500, 750, 1000, and 1500ml/ha compared with control without insecticide. The objective of the research to evaluate ofovicidal and nymphcidal of buprofezin to brown planthopper (BPH). The results showed thatthe ovicidal properties of buprofezin 100 g/l with a range doses of treatments to BPH eggsthat application at 5 days after inoculation with eggs remains in the plant tissue were 39,79-94,88%. The raising ovicidal of buprofezin were 74,84-99,5% that applied at 9 days afterinoculation with eggs remains in the plant tissue. In the other hand the ovicidal properties ofbuprofezin decreased dramatically were 20-48% that applied at 5 days after inoculation andthen BPH eggs removed from plant tissue (dissected) at 9 days after inoculation. The higherovicidal properties of buprofezin is better in the plant tissue than in the dissected eggs treated,because buprofezin working on eggs in plant tissue as a systemic insecticide. The dissectedBPH eggs of rice treated to show the normal eggs shape and no eggs contracted. Theunhatched eggs of buprofezin treatments were milk white due to insecticide effect, sometranslucent color with a red dot as a fertile eggs or without a red dot as unfertile eggs.Buprofezin was the excellent nymphcidal insecticide with the value of the efficacy to BPHnymphs were very high about 87,44 -100% for a range doses treatments. Buprofezin did notresurgence effect, moreover this insecticides still have ovicidal and nimphcidal properties as abasic to reduce offspring of brown planthopper.

Cover Agrotrop Vol. 7, No. 1, Mei 2017 Jurnal AGROTROP
Agrotrop : Journal on Agriculture Science Vol 7 No 1 (2017)
Publisher : Fakultas Pertanian Universitas Udayana

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Cover Agrotrop Vol. 7, No. 1, Mei 2017

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