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Agrotrop : Journal on Agriculture Science
Published by Universitas Udayana
ISSN : 2088155X     EISSN : 26544008     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Journal AGROTROP
Arjuna Subject : -
Articles 12 Documents
 1   2 
Search results for , issue "Vol 3 No 2 (2013)" : 12 Documents clear
Pertumbuhan Awal Mahkota Dewa (Phaleriamacrocarpa) pada Beberapa Dosis Vermikomposdan Intensitas Naungan MERAKATI HANDAJANINGSIH; ENTANG I. SUKARJO; NORMA LIDIAWATI
Agrotrop : Journal on Agriculture Science Vol 3 No 2 (2013)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

Early Growth of Phaleria macrocarpaunder Different Shade Intensity and Doses ofVermicompost. Phaleria macrocarpaisshade plant,nativeto Papua-Indonesia. This is one of themost valuable herbal plants in Indonesia and widely grown in home gardens as well as in industrialareas.Organic matter incorporated into the media can increase nutrient availability, medium moisture,plant growth regulator, and improve soil structure to support root growth. In addition, light intensity isanother factor determined the optimum growth especially on shade plants. The research was aimed tofind the most appropriate dose and shade intensity to support early growth stage of Phaleriamacrocarpa.CompletelyRandomized Design was applied in Split Plot arrangement with threereplications. The shade intensity consisted of 0, 25, 50, or 75% while the dose of vermicompostconsisted of 0, 300, 600, or 900 g polybag-1. Research showed thatno interaction was revealed betweenshade intensity and dose of vermicompost on plant height, plant fresh weight and degree of leaf greeness.Root length and root dry weight responded linierly under 25, 50, and 75% shadesThere was no responseon plant growth with the increase ofdose of vermicompost when plants were grown without shading.The highest growth as shown on leaf number, leaf area, stem diameter, and root growth was under 50%shading and application 900 g polybag-1 of vermicompost. This research thus supports the previousreport that P. macrocarpa is less tolerance to full sunlight during its early growth.
Efikasi Chitosan untuk Memperpanjang Flower Longevity Bunga Anggrek Dendrobium Hibrida dalam Pot (Potted Flower) I MADE SUKEWIJAYA
Agrotrop : Journal on Agriculture Science Vol 3 No 2 (2013)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

Effication of Chitosan on Lengthening The Flower Longevity of Potted Orchid ofDendrobium Hybrid. The aim of the current research is to investigate general effects of Chitosantreatment on the flowering of Dendrobium orchid and to find out the optimum concentration of Chitosanin lengthening flower longevity of potted orchid of Dendrobium hybrid. Results of the research showedthat Chitosan application significantly affected variables of the number of flower per-plant, the length ofindividual flower, period of time to get full blooming, and the flower longevity. The best results for thoseof variables was achieved with Chitosan concentration of 0.15%.
Studi Keharaan Tanaman dan Evaluasi Kesuburan Tanah di Lahan Pertanaman Jeruk Desa Cenggiling, Kecamatan Kuta Selatan KETUT DHARMA SUSILA
Agrotrop : Journal on Agriculture Science Vol 3 No 2 (2013)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

Study on Plant Nutrient and Soil Fertility Evaluation in Citrus Plantation Land at CenggilingVillage, South Kuta District. The objective of the research to elaborate some soil chemical propertiesand classify soil fertility status of citrus plantation lands at Cenggiling Village, South Kuta District. Soilsurvey method and quantitative measurement of some soil fertility elements in laboratory based onBogor Soil Research Center procedure (1995) was done to determined criteria and soil fertility status.The result of study showed that C1 location at “subak abian” Tanijaya have chemical properties namely:CEC; base saturation; P205; K20 and C-organic are 26.13 me/100g (high criteria); 89.18% (highcriteria); 44.20 mg/100g (high criteria); 57.80 mg/100g (high criteria) and 2.51% (medium criteria)respectively with high soil fertility status. On the other hand, C2 location at “subak abian” Selondinghave chemical properties namely: CEC; base saturation; P205; K20 and C-organic are 23.40 me/100g(medium criteria); 79.36% (high criteria); 35.28 mg/100g (medium criteria); 56.35 mg/100g (highcriteria) and 1.66% (low criteria) respectively with low soil fertility status. The last, C3 location at“subak abian” Puluk-puluk have chemical properties namely: CEC; base saturation; P205; K20 and Corganicare 17.80 me/100g (medium criteria); 87.05% (high criteria); 29.37mg/100g (medium criteria);57.91 mg/100g (high criteria) and 1.54% (low criteria) respectively with low soil fertility status.
Kajian Unsur Hara Tanah Sawah Untuk Menentukan Tingkat Kesuburan I NYOMAN PUJA; A.A. NYOMAN SUPADMA; I MADE MEGA
Agrotrop : Journal on Agriculture Science Vol 3 No 2 (2013)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

Study on Soil Nutrients in Rice Field to Determine Soil Fertility Status.Research of soilnutrients in rice field to determine soil fertilitystatus had been done on rice field in district Penebel,Tabanan regency.This study aimed to assess level of soil fertility status on rice field.The research wasconducted by survey and laboratory analysis. The study consists of several stages such as, the formationof the land unit based on the compilation maps of soil type, geology and slope.It’s obtained 11 landunits. Each unit tookone samples. The soil sample was analyzed for Cation Exchange Capacity andCation Saturated (NH4OAC extractional pH 7,0); N-Total (Kjeldhal); P-total and K-total (HCl 25% extraction); Salinity (EC), Organic matter(Wokly and Black)and pH (H2O)(1 : 2,5). The analysisproceseshave done at Soil laboratory, Faculty of Agriculture, Udayana University.The result oftheresearch show that status of soil fertilityon rice field at district Penebel, Tabanan regency are low1.478,551ha (29.16%), medium2.286,721 ha (63.83%), and high2.286,721 ha (6.01%).
Uji Efektivitas Pupuk Majemuk NPK yang Ditambah Asam Humat terhadap Pertumbuhan dan Produksi Tanaman Padi TITA RUSTIATI
Agrotrop : Journal on Agriculture Science Vol 3 No 2 (2013)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

Study on The Effectivityof NPK Compound FertilizerAdded withHumic Acid for Growthand Pruductionof Rice.It is important to improve the efficiency of fertilizers especially nitrogen (N)for lowland rice cultivation, since the efficiencyof broadcasted N was ony in the range of 30–40%,while P fertilizer 20–30% and K fertilizer 30–40%. Humic products have been used for years inproduction agriculture with varying results to improve plant growth and yield, as well as increasingfertilizer efficiency.Field experiment has been conducted at Experimental Farm of Rice Research InstituteinSukamandi to evaluate the effectivity of humic acid addition to NPK compound fertilizer on lowlandrice. Five doses (200, 250, 300, 350, and 400 kg/ha) of compound fertilizers NPK-1 and NPK-2(NPK+humic acid), together with control and local recomended fertilizer were tested in this experiment.Twelve treatments with 4 replications were arranged in Completely Randomized Block Design.Resultsof experiment showed that in general compound NPK fertilizer did not give better result if humic acidwas added; the effectivity of NPK compound fertilizer was not affected by the addition of humic acid.Humic acid tended to increase N use efficiency at higher level of fertilizer. It was suggested that withhigher level of humic acid theeffect would be more significant.
Induksi Kalus dengan 2,4-Dpada Mikropropagasi Tanaman Stroberi (Fragraria x ananassa Duch cv. Rosalinda) I.A. PUTRI DARMAWATI; RINDANG DWIYANI; HESTIN YUSWANTI
Agrotrop : Journal on Agriculture Science Vol 3 No 2 (2013)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

Callus Induction with Aplication of 2,4-D in Micropropagation of Strowberry(Fragraria xananassaDuch cv. Rosalinda). Strawberryis grown and well planted in many countries and has ahigh economic value. In Bali,thecentraproduction is in Pancasari Village,Sukasada District,BulelengRegency. The limited number and quality of seedling are the problems currently faced bystrawberry farmers at Pancasari Village. Seedlings produced by conventional propagation are limitedand are not able to meet the needs of seedling available for planting area. This study offers a solution tothe problem by applyingmicropropagationtechnique through callus induction. The research aim is tofind the optimal concentration of 2,4 - D to induce callus of strowberry. Callus that forms will be usedas the material for the next growing into young plants regenerated seedlings. This experiment used acompletely randomized design with 2 factors. The first factor was theconcentrations of 2,4 - D withfive levels of treatments, i.e.0 ; 0.5, 1.0, 1.5, and 2.0 ppm and the second factor was type of explantsused, including tip , middle and base of leaf. Results showed that2,4-D concentration of 1 and 2 ppmapplied on the base of the leaf is able to induce 100 % callus at 14 days after planting. Callus formedwas greenish white. The callus will be regeneratedinto plantlets or young plants.
Pengaruh Perbedaan Waktu Tanam Tetua Padi Hibrida dan Aplikasi Zat Pengatur Tumbuh terhadap Hasil Benih F1 HIPA 8 SRI WAHYUNI; TITA RUSTIATI; YUNI WIDYASTUTI
Agrotrop : Journal on Agriculture Science Vol 3 No 2 (2013)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

The Effects of Planting Time of TheParental Hybrid Rice and Plant Growth RegulatorApplication on Seed Yield of F1 HIPA 8.Research the effect of planting time of parental lines andapplication of plant growth regulators (GA3and glysine) on seed yield of F1 hybrid rice had beenconducted at The Indonesian Centre of Rice Research on 2010. The objective of the study was to findout combination of plating time and application of plant growth regualtors to get high seed yield ofhybrid rice. Seeds of parental lines Hipa 8 were planting in row ratio 2R:8A at Cilandak, Indramayu onthe dry season of 2010. Treatments to improve seed yield of hybrid rice consisted of (a) planting timeof parental lines (CMS and R), and (b) application of plant growth regualators (GA3 CG1 (commercialgrade) 60 ppm, GA3 CG2 94 ppm, Glysine 40 ppm and control (untreated). Plant growth regualatorwere applied at three times i.e. heading time, 5% plant flowering and 20% plant flowering. Variableevaluated consisted of: plant growth, yield component and seed yield. Result of the exeperiment showedthat tiller number per hill and plant height at vegetatif stage were not affected by treatments. TreatmentA1B2 and A2B2 significantly improved panicle exercition, plant height of restorer and also seed yield.Rice plant treated with A1B2 (planting times of restorer were 12, 15, and 18 days after CMS andapllication GA3 CG1 60 ppm) showed the highest seed yield, followed by A2B2 (planting times ofrestorer were 13, 17 and 21 days after CMS and application of GA3 CG1 60 ppm).
Pengaruh Pemberian Mikroba Probiotik Lokal terhadap Peningkatan Produksi Jagung Hibrida KARSIDI PERMADI
Agrotrop : Journal on Agriculture Science Vol 3 No 2 (2013)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

Local Probiotics Microbial Effect on Improvement of Hybrid Maize Production.Nationalmaize needs continue to increase every year, either for food, feed and industrial raw materials. To meetthis requirement Indonesia have to do import corn because the production at the farm level is still lowdue to poor application of resource integrated crop management (ICM) including the use of localprobiotic microbes.This study aims to determine the effect of applying maizeintegrated resourcemanagement ( ICM - maize ) using Local Probiotic Microbial fertilizer. The experiment was conductedin the village Cicurug, Majalengka Subdistricts, District Majalengka using a Randomized Block DesignComplete (RCBD), with four treatments and six replications. The treatment of local probiotic microbeswere: the dose of 3 l ha-1 Agri Simba, the dose of 3 l ha-1 Agri Simba + 1.500 g of urea, the dose of 6l ha-1 Agri Simba, and a dose of 6 l ha-1 Agri Simba + 3.000 g of urea. The results showed that the doseof applying local probiotic microbes (Agri Simba) has significant effect on growth, yield componentsand yield of hybrid maize varieties P-21.The highest yieldof dried shelled beans was 12.20 t ha-1achievedby the dose of 6 l ha-1Agri Simba+ 3.000 g urea.The lowest yield was 8.73 t ha-1 that obtained at doseof 3 l ha-1 Agri Simba. The componentsthat support tne yield of theP-21 hybrid maize wereweightofcob, number of rows per ear and weight of 100 grains.
Uji In-Vitro Daya Hambat Ekstrak Beberapa Jenis Tanaman terhadap Pertumbuhan Jamur Patogen Getah Kuning Buah Manggis I KETUT SUADA; NI WAYAN SUNITI; NI PUTU LINDA SUNARIASIH
Agrotrop : Journal on Agriculture Science Vol 3 No 2 (2013)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

In-vitro Testing of Inhibiting Ability of Some Plants Extractto the Growth of MangosteenYellow Latex Pathogens. The yellow latex disease decreases fruit quality of mangosteen because ofthe exogenic latex causing dirty the fruit, and the endogenic latex makes the bitter fruit taste, thereforethe fruit does not deserve to be consumed. The causal agent of the disease are fungus i.e.Verticilliumalbo-atrum, Fusarium oxysporum,andPestalotia macrotricha, therefore the research was aimedto find the plant extract that could act as antifungal agent. Screening on many kinds of plant extractthrough well difusion method were found that crude water extract of 10% concentration of kayusugih, kayu tulak, sereh dapur, beluntas, puring, sirih hutan, temen, and dapdap were only effectiveto suppress Verticillium albo-atrum.Methanolic plant extract of 10% of endongplant was only effectiveagainst Fusarium oxysporum, while the extract that effective against Pestalotia macrotricha wasnot found yet.
Pengaruh Cekaman Salinitas Terhadap Viabilitas dan Vigor Benih Dua Varietas Kedelai (Glycine max. L.) MEKSY DIANAWATI; DWI PANGESTI HANDAYANI; YULIANUS R. MATANA; SIMAO MARGONO BELO
Agrotrop : Journal on Agriculture Science Vol 3 No 2 (2013)
Publisher : Fakultas Pertanian Universitas Udayana

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Abstract

The Salinity Stress Effect on Seed Viability and Vigor of Two Varieties of Soybean. Poorseed germination and crop stand are major problems in saline areas. The purpose of this study was todetermine the effect of salinity stress degrees of two varieties of soybeans. This research was conductedin March to April 2011 at the Seed Technology Laboratory, Bogor Agricultural University. Randomizedcompleted design was used with two treatment factors and three replications. First factor was varieties,i.e. Burangrang and Tanggamus. Second factor was consentrations of NaCl, i.e. 0, 2, 4, 6, 8, 10 g l-1.The results showed that the higher consentration of NaCl, the lower germination rate and seedling vigorindex. The NaCl concentration critical point of salinity stress based on germination rate of Burangrangand Tanggamus variety was 6 g l-1.

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