Garuda - Garba Rujukan Digital

Perkecambahan Asimbiotik Biji Anggrek Dendrobium bicaudatum pada Media dengan Penambahan Ekstrak Tomat secara In Vitro NI WAYAN SURIANTARI; IDA AYU PUTRI DARMAWATI; HESTIN YUSWANTI
Agrotrop : Journal on Agriculture Science Vol 12 No 1 (2022)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2022.v12.i01.p05

Asymbiotic Germination of Dendrobium bicaudatum Orchid Seeds on Media with In Vitro Addition of Tomato Extract. Dendrobium bicaudatum is a natural orchid that needs to be preserved. Orchid seeds propagation naturally (symbiotic) has a low success rate. Orchid seeds do not have an endosperm. Asymbiotic germination with in vitro culture techniques can be an alternative solution for the propagation of orchid seeds. This study aimed to determine the effect of giving tomato extract on modified media on the asymbiotic germination of Dendrobium bicaudatum orchid seeds. This research used the Completely Randomized Design with five treatments of tomato extract concentration, namely 0%, 5%, 10%, 15%, 20%, with 4 replications. The variables observed in this study were the time and percentage of phase 1; time and percentage of phase 2; time and percentage of phase 3; time and percentage of phase 4; time and percentage of phase 5; and time and percentage of phase 6. The results showed that the tomato extract treatment had a significant or very significant effect on the germination of Dendrobium bicaudatum orchid seeds and the best treatment for the fastest and the highest percentage of germination from protocorm to First Leaf Primodium was the addition of tomato extract with a concentration of 15% or 20%, and a concentration of 0% tomato extract for the early stages of swelling of the embryo.

Distribusi dan Kemampuan Adaptasi Spodoptera frugiperda (J. E Smith) (Lepidoptera: Noctuidae) Terhadap Tanaman Inang pada Beberapa Ketinggian Tempat di Bali PUTU SUSY LISTYAWATI; I NYOMAN WIJAYA; DWI WIDANINGSIH; I WAYAN SUPARTHA
Agrotrop : Journal on Agriculture Science Vol 12 No 1 (2022)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2022.v12.i01.p10

Distribution and Adaptability of Fall Army Worm, Spodoptera frugiperda (J.E Smith) (Lepidoptera: Noctuidae) Against Host Plants at Several Altitudes in Bali. The armyworm pest (Spodoptera frugiperda J.E. Smith) was first discovered attacking maize plants in Sumatra in 2019.These pests move very quickly from a wide range of altitude and host plant, while in Bali only discovered this pest attack maize plants at an altitude <500 meters above sea level (masl). The purpose of this study was to determine the distribution map of S. frugiperda, to determine the population and host plants in the field and to determine the attack of S. frugiperda at several altitudes in Bali. This study used purposive survey method. Plant sampling was carried out in all regencies of Bali Province by means of diagonal sampling. The size of unit sample was2 x 2 m and the number of plants observed was 20 plants. The results showed that the pest S. frugiperda had spread in the highland up to (> 1000 masl) which attacked maize and sorghum in Bali. The distribution area of the pest are Tabanan, Badung, Gianyar, Klungkung, Karangasem, Bangli, Buleleng, Jembrana and Denpasar. The population of S. frugiperda was found until the highland (> 1000 masl) with a population of host plants is still low and spread at 5 altitude with type host plants found, sweet corn, glutinous corn, corn pipil, local corn and sorghum. he percentage of S. frugiperda attacks at 5 altitudes in Bali is 11.71% to 35.13%.

Insidensi Serangan dan Perkembangan Populasi Hama Invasif, Spodoptera frugiperda (J. E Smith) (Lepidoptera: Noctuidae) pada Tanaman Jagung dan Sorgum di Bali CRISTINE LAURINE SIMANJUNTAK; I KETUT SUMIARTHA; KETUT AYU YULIADHI; I WAYAN SUPARTHA
Agrotrop : Journal on Agriculture Science Vol 12 No 1 (2022)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2022.v12.i01.p01

Incidence of Attacks and Population Development of Invasive Pests, Spodoptera frugiperda (J.E Smith) (Lepidoptera: Noctuidae) on Corn and Sorghum Crops in Bali. Spodoptera frugiperda is known as an invasive pest which now become important pest on corn crops in Indonesia and Bali in particular, but in this study the Spodoptera frugiperda was also found to attack sorghum. This study used purposive survey method and on land that had been fixed. Plant sampling was carried out in all regencies of Bali Province by means of diagonal sampling. The size of unit sample was 2 x 2m and the number of plants observed was 20 plants. The results of this study showed that the incidence of S. frugiperda attack has been observed on plant beds in all districts/cities in Bali which is indicated by symptoms of attack and abundance of S. frugiperda population on corn and sorghum in the field. The highest abundance of S. frugiperda larvae population was in sweet corn in Klungkung Regency as much as 38.67 heads, and the lowest was in sorghum numbu in Tabanan Regency as many as 27.00 individuals per observation plot. Population development of egg groups was found in plants aged 1 (MST) while larvae of S. frugiperda showed the same pattern in sweet corn, sticky rice and pipil plants and the peak of larval population occurred in plants aged 4 WATS respectively. While the peak population of larvae in sorghum plants occurred at 5 WAP and imago populations in sweet corn were found in sweet corn plants at 2 WAP and glutinous corn at 4 WAP. The highest percentage of S. frugiperda attack was on sweet corn with an average attack of 43% per observation plot and the lowest on sorghum numbu with an average of 25% per observation plot.

Efektivitas Trichoderma sp. dan Gliocladium sp. untuk Pengendalian Penyakit Busuk Batang (Fusarium Oxysporum Sp.) pada Tanaman Vanili (Vanilla Planifolia) MEI NOVITA BR PARDEDE; GUSTI NGURAH ALIT SUSANTA WIRYA; KHAMDAN KALIMI
Agrotrop : Journal on Agriculture Science Vol 12 No 1 (2022)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2022.v12.i01.p06

Effectiveness of Trichoderma sp. and Gliocladium sp. For Controlling Stem Rot (Fusarium Oxysporum sp.) in Vanilla (Vanilla planifolia). Vanilla (Vanilla planifolia Andrews) is one of the industrial plants that have very high economic value as an export commodity. One of the main obstacles to increasing vanilla production is stem rot disease. Stem rot disease caused by Fusarium oxysporum f. sp. vanillae became one of the main obstacles faced. This research on the effectiveness of antagonistic microbes aims to obtain the best antagonist microbes in suppressing stem rot disease in vanilla plants. The experiment was carried out in vitro at the Laboratory of Plant Diseases at Udayana University and in vivo at the Experimental Garden Greenhouse. The experiment used a randomized block design with six replications and four treatments, namely Control (without antagonistic microbes), G (Gliocladium sp. + compost), T (Trichoderma sp. + compost), and GT (Gliocladium sp. and Trichoderma sp. + compost). The results showed that T (Trichoderma sp. + compost) and GT (Gliocladium sp. and Trichoderma sp. + compost) able inhibit stem rot disease with the best percentage of 10%.

Tanggap Parasitoid Braconidae (Hymenoptera) Terhadap Hama Invasif Liriomyza trifolii (Burgess) (Diptera: Agromyzidae) pada Tanaman Sayuran dan Hias di Bali TIA GUNAWAN SARI; A. A. AYU AGUNG SRI SUNARI; I WAYAN SUPARTHA
Agrotrop : Journal on Agriculture Science Vol 12 No 1 (2022)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2022.v12.i01.p11

Response of Braconid Parasitoid Against Invasive Pest, Liriomyza trifolii (Burgess) (Diptera: Agromyzidae) on Vegetable and Ornamental Crops in Bali. Research on the respopnse of Braconid parasitoids to the invasive pest, Liriomyza trifolii that attacks ornamental plants and vegetables in Bali, was carried out from September 2020 to March 2021. This study aimed to determine the type and abundance of parasitoid populations that responded to Liriomyza trifolii on host plants in the field. In addition, this study also aims to evaluate the level of parasitization of each parasitoid against L. trifolii. This study used a purposive sampling method by taking leaf samples that showed active symptoms of Liriomyza larvae in the leaves of plants. The research focused on vegetables and ornamental plants cultivated in lowlands <500 meters above sea level (masl), mediumlands 500-1000 meters above sea level and highlands> 1000 meters above sea level. The results showed that there were two species of Braconid parasitoids that responded to Liriomyza trifolii in the field, namely Opius dissitus and Opius cromatomiyae. The relative abundance and degree of parasitization of the two parasitoids showed variation between host plant species and altitude. The relative abundance of O. dissituse was high in chrysanthemum (10.81%) at an altitude of >1000 masl and low in long beans (0.53%) at an altitude of <500 masl. The highest relative abundance of O. cromatomiyae was in marigold flowers (51.18%) at an altitude of <500 masl and the lowest was in chrysanthemum (44.83%) at an altitude of > 1000 masl. The highest level of parasitization of O. dissitus was found in pakcoy plants (50.00%) at an altitude of >1000 masl and the lowest was in mustard plants (6.06%) at an altitude of <500 masl. The highest level of parasitization of O. cromatomiyae was in celery (33.33%) at an altitude <500 masl and the lowest was in tomato plants (25.00%) at an altitude> 1000 masl. Both species of Braconid parasitoids have high potential as biological control agents for L. trifolii as indicated by their relative abundance and high levels of parasitization against these invasive pests.

Aplikasi Remote Sensing dan Geographic Information System Untuk Monitoring Perubahan Penggunaan Lahan Dalam Menunjang LP2B Di Subak Intaran Barat, Kota Denpasar SISKA MAILASARI; NI MADE TRIGUNASIH; INDAYATI LANYA
Agrotrop : Journal on Agriculture Science Vol 12 No 1 (2022)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2022.v12.i01.p02

Remote Sensing and Geographic Information System Aplication For Monitoring Land Use Change In Supporting LP2B In Subak Intaran Barat, Denpasar City. Subak Intaran Barat is one of 41 subak in Denpasar City which has been designated as Sustainable Subak and agro-ecotourism and is recommended as a Sustainable Food Agricultural Land area. This study aims to create a thematic map of changes in paddy land use in 2012 and 2018, a map of paddy land ownership, and compile an information system of Land Resources (SDL), Artificial Resources (SDB), and Agricultural Resources (SDP). This research method, namely: analysis of satellite images, surveys and mapping. The stages of this research are: literature study, interpretation of satellite images, field surveys and interviews, reinterpretation of satellite images, mapping and compilation of attribute data for SDL, SDB, SDP, and land ownership. Changes in land use for 6 years (2012-2018) in the West Intaran subak covering an area of 8.9 acres. The number of Subak farmers is 76 people. The status of the owner is 6 people with a land area of 6.85 acres (8.00%) and 70 smallholders with a land area of 79.55 acres (92%) who come from Sanur Kauh Village. Land resources found in Subak Intaran Barat are: irrigation canals (5,120 m), jogging track (1,960 m), rainfall 1500-2000 mm/year, slope 0-2%, soil type Typic Tropaquepts Isohiptermic, rice crop rotation patterns, horticulture-rice.

Viabilitas Azotobacter spp. pada Beberapa Kombinasi Media Pembawa NI NENGAH SONIARI; NI WAYAN SRI SUTARI
Agrotrop : Journal on Agriculture Science Vol 12 No 1 (2022)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2022.v12.i01.p07

Azotobacter spp. Viabilities on Some Combinations of Carrier Media. The purpose of this research was to find suitable carrier media for the survival of Azotobacter spp. as a biological fertilizer, before being applied to the field. The method used in this research is explorative, by inoculating Azotobacter spp. Isolate on 4 types of carrier media, namely soil; cocopeat; wood dust and charcoal with a combination of the following: K1 (Land); K2 (soil + cocopeat); K3 (Soil + sawdust) and K4 (Soil + husk charcoal), which were repeated 3 times, so there were 12 experimental units. Analysis of N, P, K, C-organic and pH for soil media, while for cocopeat, wood powder and husk charcoal, an analysis of N and P, C-organic tissue and pH was carried out. The parameters observed were optical density at 2, 4, 6 and 8 weeks. The results showed that the survival of Azotobacter spp. in K4 carrier media (a combination of soil and husk charcoal) is more secure than other types of carrier media with optical density that has not decreased. Analysis of N and P for rice husk charcoal tissue gave the highest results, namely 1,680% and 1,351%, which were one of the supporters of this inoculant viability. Azotobacter spp. viability still guaranteed until 6 weeks incubation period, in several media, (soil + cocopeat), (soil + sawdust), and (soil + husk charcoal). The combination of media (soil + husk charcoal) gave the highest population increase at the 6 weeks incubation period.

Identifikasi Jamur Pada Pupuk Organik Cair (POC) Limbah Dapur Di Desa Sanur Kauh ARDHIKA FAHRIZA HARVIANTO; NI WAYAN SRI SUTARI; I WAYAN DANA ATMAJA
Agrotrop : Journal on Agriculture Science Vol 12 No 1 (2022)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2022.v12.i01.p12

Identification of Fungi in Kitchen Waste Liquid Organic Fertilizer (LOF) in Sanur Kauh Village. Decomposed kitchen waste contains certain microorganisms, one of which is fungus. Fungi are one of the microorganisms that are widespread in soil and water and have the potential in the process of decomposition of organic matter. The research objective was to determine the composition of kitchen waste and obtain fungi species from LOF of kitchen waste in Sanur Kauh Village. The research was conducted from September to December 2020. Sampling was conducted in Sanur Kauh Village, South Denpasar District. Furthermore, LOF making and analysis was carried out at the Laboratory of Soil and Environmental Sciences, Faculty of Agriculture, Udayana University and at the Indonesian Genetika Science Laboratory, Tangerang. The method used is a descriptive analysis experiment, which consists of field exploration, laboratory analysis and molecular identification. The results showed that the most dominant percentage of LOF from kitchen waste composition was fruit at 46.69% followed by vegetables at 24.17%, rice at 18.92%, egg shells, bones and meat at 5.16% and the remaining side dishes of 5.06%. The results of molecular identification of fungal species on LOF fermentation of kitchen waste isolates LDA 2 and LDB 2 were similar to Pichia kudriavzevii strain CBS5174 chromosome 2 (99.71%) and Pichia kudriavzevii culture CBS: 5147 (99.56%).

Kandungan Minyak Esensial Sebagai Bahan Baku Obat-Obatan dari Tanaman Gaharu (Gyrinops versteegii) pada Kondisi Lahan Berbeda I MADE ADNYANA; I MADE MEGA; I GUSTI PUTU RATNA ADI
Agrotrop : Journal on Agriculture Science Vol 12 No 1 (2022)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2022.v12.i01.p03

Content of Essential Oils as Raw Materials for Medicine from Agarwood Plants (Gyrinops versteegii) in Various Soil Conditions. Essential oil is one of the processed agarwood (Gyrinops versteegii) which is useful in the basic ingredients of perfume, cosmetics, and medicines. The purpose of this study was to determine the volume and chemical composition of essential oils in agarwood plants in different land conditions. This research was conducted through a hydrodestillation process and chemical component analysis using a Gas Chromatography Mass Spectrophotometer (GCMS). The materials used are samples of agarwood from different lands, namely: A (agarwood on land with Regosol in Klungkung Regency) and B (agarwood on land with Latosol in Tabanan Regency). The specimens of agarwood consisted of: (1) Sapwood, (2) Kemedangan. The results showed that the essential oil content of the sapwood and kemedangan agarwood from Tabanan was higher than that of the sap and kemedangan agarwood from Klungkung. The composition of the compounds contained in sapwood includes: 9-Octadecenoic acid, Trans-13-Octadecenoic acid, Eugenol, 1-Nonadecene, Propanedioic acid, phenyl-; 2-propanol, 1,1'-oxybis-; 1-Propanol, 2- (2-hydroxypropoxy); Cyclopentadecanone, 2-hydroxy-and Oleic acid.

Uji Efektivitas Ekstrak Buah Andaliman (Zanthoxylum acanthopodium. D.C) Terhadap Phytophthora palmivora Penyebab Penyakit Busuk Buah Kakao (Theobroma cacao L.) BERTA BR GINTING; DEWA NGURAH SUPRAPTA; NI WAYAN SUNITI
Agrotrop : Journal on Agriculture Science Vol 12 No 1 (2022)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2022.v12.i01.p08

Effectiveness Test of Andaliman Fruit Extract (Zanthoxylum acanthopodium. D.C) Against Phytophthora palmivora the Cause of Cocoa (Theobroma cacao L.) pod rot disease. Fruit rot disease caused by the fungus Phytophthora palmivora causes the loss of crop yields up to 90%. Therefore, an effort is needed to control Phytophthora palmivora that causes blight in cocoa plantations. Alternative that can be done is the use of botanical fungicides. One of the plants that can be used as a botanical fungicide is the fruit of Andaliman (Zanthoxylum acanthopodium D.C). This study aims to test the effectiveness of andaliman fruit extract against P. palmivora which causes pod rot disease. Colony test and cocoa pod damage test in vivo using extract concentrations, namely 50%; 25%; 16.7%; and 0% (control). The results showed that andaliman fruit extract could inhibit the growth of P. palmivora which can be used as botanical fungicide. The concentration of andaliman fruit extract 50% and 25% can reduce cocoa pod damage caused by P. palmivora by 58% and 45.7%, respectively.

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kota denpasar,

Bali

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name -

Contact Email -

Phone -

Journal Mail Official -

Editorial Address -

Location Kota denpasar, Bali INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kota denpasar,

Bali

INDONESIA