Publisher: Universitas Udayana (Total: 68 journals)   [Sort alphabetically]

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E-J. of Tourism     Open Access   (Followers: 11)
E-Jurnal Manajemen Universitas Udayana     Open Access   (Followers: 10)
Matrik : Jurnal Manajemen, Strategi Bisnis dan Kewirausahaan     Open Access   (Followers: 7)
Sport and Fitness J.     Open Access   (Followers: 5)
Advances in Tropical Biodiversity and Environmental Sciences     Open Access   (Followers: 5)
e-J. of Linguistics     Open Access   (Followers: 4)
Buletin Studi Ekonomi     Open Access   (Followers: 4)
Buletin Veteriner Udayana     Open Access   (Followers: 3)
J. of Marine and Aquatic Sciences     Open Access   (Followers: 2)
Agrotrop : J. on Agriculture Science     Open Access   (Followers: 2)
J. of Food Security and Agriculture     Open Access   (Followers: 2)
Majalah Ilmiah Peternakan     Open Access   (Followers: 2)
Simbiosis : J. of Biological Sciences     Open Access   (Followers: 2)
E-Jurnal Medika Udayana     Open Access   (Followers: 2)
Jurnal Master Pariwisata (J. Master in Tourism Studies)     Open Access   (Followers: 2)
Jurnal Ergonomi Indonesia (The Indonesian J. of Ergonomic)     Open Access   (Followers: 2)
E-J. of Cultural Studies     Open Access   (Followers: 2)
Majalah Ilmiah Teknologi Elektro : J. of Electrical Technology     Open Access   (Followers: 2)
J. of Veterinary and Animal Sciences     Open Access   (Followers: 1)
Linguistika : Buletin Ilmiah Program Magister Linguistik Universitas Udayana     Open Access   (Followers: 1)
E-Jurnal Ekonomi dan Bisnis Universitas Udayana     Open Access   (Followers: 1)
COPING (Community of Publishing in Nursing)     Open Access   (Followers: 1)
itepa : Jurnal Ilmu dan Teknologi Pangan     Open Access   (Followers: 1)
Humanis : J. of Arts and Humanities     Open Access   (Followers: 1)
E-Jurnal Agroekoteknologi Tropika (J. of Tropical Agroecotechnology)     Open Access   (Followers: 1)
J. of Health Sciences and Medicine     Open Access   (Followers: 1)
E-Jurnal Ekonomi Pembangunan Universitas Udayana     Open Access   (Followers: 1)
Jurnal Ilmiah Akuntansi dan Bisnis     Open Access   (Followers: 1)
Archive of Community Health     Open Access   (Followers: 1)
Jurnal Matematika     Open Access   (Followers: 1)
Jurnal Ekonomi Kuantitatif Terapan     Open Access   (Followers: 1)
Indonesia Medicus Veterinus     Open Access   (Followers: 1)
Jurnal Veteriner     Open Access   (Followers: 1)
Jurnal Magister Hukum Udayana (Udayana Master Law J.)     Open Access   (Followers: 1)
Jurnal Spektran     Open Access   (Followers: 1)
Jurnal Ilmu dan Kesehatan Hewan (Veterinary Science and Medicine J.)     Open Access   (Followers: 1)
Public Health and Preventive Medicine Archive     Open Access   (Followers: 1)
Bumi Lestari J. of Environment     Open Access  
E-Jurnal Akuntansi     Open Access  
Jurnal Biologi Udayana     Open Access  
Jurnal Farmasi Udayana     Open Access  
Jurnal BETA (Biosistem dan Teknik Pertanian)     Open Access  
Jurnal Rekayasa dan Manajemen Agroindustri     Open Access  
Piramida     Open Access  
Jurnal Kimia (J. of Chemistry)     Open Access  
Indonesian J. of Legal and Forensic Sciences     Open Access  
Kertha Patrika     Open Access  
Jurnal Destinasi Pariwisata     Open Access  
Lingual : J. of Language and Culture     Open Access  
Jurnal Arsitektur Lansekap     Open Access  
Buletin Fisika     Open Access  
Intl. J. of Engineering and Emerging Technology     Open Access  
Jurnal Analisis Pariwisata     Open Access  
Udayana J. of Law and Culture     Open Access  
J. of Electrical, Electronics and Informatics     Open Access  
Jurnal IPTA     Open Access  
Jurnal Kepariwisataan dan Hospitalitas     Open Access  
Jurnal Ilmu Komputer     Open Access  
Lontar Komputer : Jurnal Ilmiah Teknologi Informasi     Open Access  
JBN (Jurnal Bedah Nasional)     Open Access  
Jurnal Ilmiah Merpati (Menara Penelitian Akademika Teknologi Informasi)     Open Access  
Intisari Sains Medis     Open Access  
Jurnal Energi Dan Manufaktur     Open Access  
Jurnal Ilmiah Mahasiswa SPEKTRUM     Open Access  
Jurnal Udayana Mengabdi     Open Access  
Ecotrophic : J. of Environmental Science     Open Access  
Ruang-Space: Jurnal Lingkungan Binaan (J. of The Built Environment)     Open Access  
Cakra Kimia (Indonesian E-J. of Applied Chemistry)     Open Access  
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E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology)
Number of Followers: 1  

  This is an Open Access Journal Open Access journal
ISSN (Online) 2301-6515
Published by Universitas Udayana Homepage  [68 journals]
  • Halaman Depan JAT Vol. 10, No. 3, Juli 2021

    • Authors: Pengelola JAT
      Abstract: Halaman Depan JAT Vol. 10, No. 3, Juli 2021
      PubDate: 2021-10-06
  • Aplikasi Sistem Informasi Geografis dan Penginderaan Jauh untuk Kajian
           Potensi dan Kerawanan Longsor di Daerah Aliran Sungai Tukad Buleleng,
           Kabupaten Buleleng

      Pages: 264 - 274
      Abstract: Application of Geographic Information Systems and Remote Sensing for The Study of Landslide Potential and Susceptibility in Tukad Buleleng Watershed, Buleleng Regency Landslides are a ground movement event that descends the slopes and is almost found in every major watershed upstream, due to steep topography and high rainfall. Tukad Buleleng watershed is one of the watersheds with a stretch of rolling land and hills so that it has the potential for landslides. This experiment was been conducted from January to Agust 2020. The aims off this research were to find out the potential lanslide and the level susceptibility to landslide. The method used to determine the potential for landslides was a scoring method referring to PSBA UGM (2001) by overlapping the parameters of the causes of landslides were rainfall, slope, land use, soil types, structural of geology, and landforms maps. Landslide-prone areas were obtained by overlapping landslide potential map, road network map and residential area map. The results showed that the potential landslide in Tukad Buleleng watershed had many categories from not potentially up to high potential. The area had no potential of landslide were widespread in the downstream watershed covering an area of 1,733.94 ha 51.61%, low potential category of 165.08 ha 4,91%, the medium potential category of 77.24 ha 2,32%, and high potential category spread over the upstream part of the watershed of 1,382.87 ha 41,16%. The distribution of susceptibility was seen from administrative boundaries, Sukasada administration area that covered Wanagiri, Pegayaman, Gitgit, and Padangbulia villages.
      PubDate: 2021-07-30
  • Evaluasi Status Kesuburan Tanah Sawah Sebagai Pendukung Lahan Pertanian
           Pangan Berkelanjutan di Subak Pagutan dan Tegal Buah Kecamatan Denpasar

      Pages: 275 - 285
      Abstract: Evaluation of Paddy Soil Fertility Status as Support of Sustainable Food Farming at Subak Pagutan and Tegal Buah West Denpasar District. Soil fertility is a soil ability for willing substance with enough quantity for plants, for guaranteed willing a Sustainable Food Farming. The research was conducted with purpose to specify the fertility status of the paddy fields at Subak Pagutan and Tegal Buah, West Denpasar District, Denpasar City, with knowing the limitting factor and arranging the directions for the management of land fertility according to the soil limiting factor. The research was conducted using survey methods and soil test methods which did in the Laboratory of Soil and Environmental Sciences, Faculty of Agriculture, Udayana University, parameter which analized for determining the fertility status defined to CEC, BS, C-Organic, P-Total, K-Total with supporting data N-Total, tekstur and soil pH. The limiting factor fertility status in the research location was the low content of C-Organic, P-Total and K-Total. The better-fertility status on subak Pagutan is at SLH III and on subak Tegal Buah is at SLH V. Need returning harvest residue or adding organical addition, and adding fertilizer which contains N, P, K element in single-fertilizer or complex-fertilizer type.
      PubDate: 2021-07-30
  • Tingkat Perkembangan Nematoda Puru Akar (Meloidogyne spp.) pada Berbagai
           Jenis Tanaman Tomat Menggunakan Pengendalian Ekstrak Daun Kirinyuh

      Pages: 286 - 293
      Abstract: Development Rate of Root-Knot Nematode Meloidogyne spp. in Various Types of Tomato Plants Controlled with Siam Weed Extract The tomato plant, which is included in the Solanaceae family, is an annual herbaceous plant with a height between 70-200 cm, depending on the variety. Susenas (2012) reported that the average growth of tomato consumption in Indonesia in 2007-2011 is 2.1%. Based on data from the Central Statistics Agency (2005) in Taufik et al. (2014), tomato production in 2012 experienced a decrease in the amount of production from the previous year (2011), from 954,046 tons to 893,463 tons. Meanwhile, domestic demand for tomatoes in 2012 amounted to 904,000 tons, resulting in 10,537 tons of imported tomatoes (Pusdatin, 2014). One of the causes of the decline in tomato production is the disruption of plant pests, leading to failure. One of the diseases that attack tomatoes at all stages of growth is a root-knot disease caused by the nematode Meloidogyne spp. that live in plant nodules. Control of Meloidogyne spp. was done by using trap crops, crop rotation, and so on. In this study, we used biological control, using Siam weed leaf extract (Chromolaena Odorata L.). The results showed that the high level of development in tomato plant varieties could be known through the research data, including the number of roots and egg masses. The number of eggs indicated that the yellow cherry variety was higher than the varieties of red cherries, swadesi, serpo, and agata.
      PubDate: 2021-07-30
  • Identifikasi Bakteri Penyebab Penyakit Utama pada Tanaman Hidroponik

      Pages: 294 - 307
      Abstract: Identification of Bacteria Causing the Main Diseases in Hydroponic Plants Hydroponics is a horticultural cultivation technique using water as its growing medium. As the times progressed, people began to switch to planting with a hydroponic system, but this system was not completely free from pathogen attacks, one of which was bacteria. Therefore, this study aims to identify the types of bacteria that can infect hydroponic plants and determine the percentage of disease in hydroponic plants. The research implementation includes (1) calculating the percentage of disease, (2) sampling, (3) symptomatic plant isolation, (4) inoculation, (5) morphological classification, (6) detection of bacteria by PCR (Polymerase Chain Reaction), and sequencing analysis. The results showed that the percentage of attack on three plants, namely lettuce with soft rot symptoms, was 31.6% and celery with bacterial blight symptoms was 56.1%. The highest attack percentage was on tomato plants with bacterial wilt symptoms, reaching 69.1%. PCR results showed DNA bands measuring ± 1500 bp using general 16S rRNA primers (27F forward and 1492R reverse) on the three plants. Sequence analysis was continued on bacterial isolates from tomato plants because they had the highest percentage of attack. The nucleotide analysis of bacterial isolates in tomato plants indicated that the bacteria were a genus of Pseudomonas sp. Homology level of Pseudomonas sp. from Kesiman Village, East Denpasar District, Bali, after being traced and matched to the GenBank data in the NCBI program, it has similar homology with Pseudomonas from Iraq and India with a homology level of 89.86%, as well as from Egypt, New Zealand, and Germany with a sequence homology level of 89.19%.
      PubDate: 2021-07-30
  • Identifikasi Jamur Penyebab Penyakit Utama pada Tanaman Selada (Lactuca
           sativa L.) Hidroponik

      Pages: 308 - 323
      Abstract: Identification of the Fungal causal Agent of Main Diseases in Hydroponic Lettuce (Lactuca sativa L.) Hydroponics is an agricultural cultivation system without using soil but using water-containing nutrient solutions. Hydroponic technology is used as an alternative in plant cultivation to maintain optimal plant growth. It is completely protected from the influence of external elements such as rain, pests, climate, and others. One of the plants that are often cultivated in hydroponic technology is lettuce. However, in practice, hydroponic lettuce plants are also faced with the constraints of pathogenic fungi that cause disease in cultivated plants. This research was conducted to identify pathogenic fungi that cause disease in hydroponic lettuce plants. The results showed that the disease in hydroponic lettuce was a leaf spot disease caused by Cercospora sp. and wilt disease caused by Fusarium sp. Leaf spot disease is the main disease with a disease percentage of 41.90%.
      PubDate: 2021-07-30
  • Analisis Kondisi Daerah Resapan Air Kecamatan Sukasada Kabupaten Buleleng
           Menggunakan Sistem Informasi Geografis

      Pages: 324 - 336
      Abstract: Analysis of Watersheds Condition in Sukasada District, Buleleng Regency Using Geographic Information System Water catchment areas are areas where water is released into the soil. The research area has various determinants of water absorption conditions to allow the conditions of the water catchment area to vary. This study aims to determine the state of the water catchment area in Sukasada District and draw up a map of the water catchment area in Suksada District. This research was conducted from July 2020 to October 2020. The method used in this study was the evaluation and overlay using the Geographical Information System. The required parameters are soil type, land use, slope, and precipitation. The results showed that the status classes of the catchment areas were good, naturally normal, critical, somewhat critical, and very critical. The water infiltration status in the study area was dominated by the natural normal class with 3,972 ha (32%), followed by very critical classes with 3,906 ha (24%), more good classes with 3,584 ha (21%), the critical class with 2,165 ha (13%) and the smallest, the somewhat critical class with 1.808 ha (10%).
      PubDate: 2021-07-30
  • Induksi Mutasi Kromosom dengan Kolkisin pada Tanaman Anggur Merah (Vitis
           vinifera L. Varietas Prabu Bestari) Melalui Pembentukan Kalus Secara In

      Pages: 337 - 345
      Abstract: Induction of Chromosome Mutations with Colchicin in Red Grape (Vitis vinifera L. Prabu Bestari Varieties) Through In Vitro Callus Formation This study aims to determine the colchicine concentration that can induce chromosome mutations in red grape, carried out in vitro. This study used a completely randomized design (CRD) with 9 treatments and 3 replications so that the number of experimental units was 27 bottles of culture. The sterilized red grape node explants were immersed in colchicine at the concentration according to the treatment for 24 hours. The colchicine concentration used was 0.015% (K1), 0.020% (K2), 0.025% (K3), 0.030% (K4), 0.035% (K5), 0.040% (K6), 0.045% (K7), 0.050% ( K8) and 0% (K0) as controls. The effect of immersion in several colchicine concentrations on chromosome mutations in explants of red grape nodes that form callus cannot be observed because the chromosomes are not clearly visible, and the number of chromosomes cannot be calculated. Callus was formed in colchicine immersion treatment with a concentration of 0.015% (K1) and 0.035% (K5). Callus on K5 was formed faster, namely 10 weeks after planting, while K1 was at 11 weeks after planting. The average callus diameter on K5 was larger with a size of 4.3 mm, while on K1 it was 2 mm.
      PubDate: 2021-07-30
  • Uji Daya Hambat Jamur Antagonis terhadap Jamur Penyebab Penyakit Utama
           pada Tanaman Ubi Jalar Ungu (Ipomoea batatas (L.)) Secara In Vitro

      Pages: 346 - 356
      Abstract: In Vitro InhibitionTest of Antagonistic Fungi on Pathogenic Fungi of the Main Diseases in Purple Sweet Potatoes (Ipomoea batatas (L.) Purple sweet potato is a plant commodity that is in great demand by people today. Peringsari Village, Selat Sub-district, Karangasem Regency is one of the sweet potato-producing areas in Bali. The purple sweet potato plant developed in Peringsari village shows many symptoms of the disease on the stems and leaves of the plant. The cause of the main disease of this plant is not yet known, but the symptoms shown are such as attack by pathogenic fungi. This purple sweet potato disease does not get much attention from farmers because it is considered to have no effect in terms of the quantity and quality of sweet potatoes. The purpose of this study was to determine the main pathogens that cause disease in purple sweet potato plants and to determine which antagonistic fungi are effective in suppressing the growth of pathogens in purple sweet potato plants in Peringsari Village, Selat District, Karangasem Regency. This research was conducted in Peringsari Village, Selat Subdistrict, Karangasem Regency for sampling to be continued at the Plant Disease Laboratory, Faculty of Agriculture, Udayana University. Field observations, isolation, and morphological identification showed that the main disease-causing pathogen in purple sweet potato was the fungus Fusarium sp. and the antagonistic fungi that can control pathogenic fungi in vitro are Trichoderma asperilum, Trichoderma harzianum, Trichoderma koningii, and Trichoderma viride.
      PubDate: 2021-07-30
  • Identifikasi Jamur Patogen Penyebab Penyakit Layu Pucuk pada Tanaman
           Adenium spp. di Kota Denpasar dan Potensi Pengendaliannya dengan Jamur

      Pages: 357 - 365
      Abstract: Identification of Pathogenic Fungi that cause Wilting Diseases on Adenium spp. Shoot in Denpasar City and the Potential Control with Antagonistic Fungi Ornamental plants of Adenium, known as kamboja Jepang have various types of flowers and stem shapes and have become unique ornamental plants in Indonesia. Adenium plants that grow in Denpasar City showed the symptoms of pathogenic fungi like wilting on the shoots. This study aims to identify the pathogenic fungi that cause major diseases in Adenium spp. in the area of ''Denpasar City. The activities carried out in this study were (1) sampling, (2) isolation of the pathogenic fungi from symptomatic Adenium plant, (3) pathogenicity test, (4) morphological identification of pathogenic fungi, and (5) inhibition test of the antagonistic fungi against the pathogenic fungi. This research was conducted in Denpasar City and the Plant Disease Laboratory, Faculty of Agriculture, Udayana University. The results of this study were successful in identifying Fusarium sp. as a pathogen that causes wilting of the shoots or dieback. The potential for biological control by utilizing antagonistic fungi showed that Gliocladium sp. can suppress the growth of pathogenic fungi Fusarium sp. up to > 87% and Trichoderma sp. up to > 88 %.
      PubDate: 2021-07-30
  • Aplikasi Remote Sensing dan Sistem Informasi Geografis untuk Menunjang
           Database Lahan Pertanian Pangan Berkelanjutan di Subak Padanggalak

      Pages: 366 - 377
      Abstract: Application of Remote Sensing and Geographic Information System for Support Database of Sustainable Food Agricultural Land in Subak Padanggalak Subak Padanggalak is highly recommended as Sustainable Food Agricultural Land (SFAL). According to Government Regulation No. 25/2012, the SFAL implementation needs to be equipped with a geospatial-based database. The research aims: compile a database for support SFAL in Subak Padanggalak, create a land ownership map of Subak Padanggalak, create a geospatial-based SFAL information system, and land ownership of Subak Padanggalak. This research uses survey and mapping methods. Results from secondary data: Typic tropaquepts, volcanic plains, micro slopes 0-3%, climate 1.500-2.000 mm/year, high soil fertility, potential land suitability for paddy is very suitable (S1), horticulture crops are moderately suitable (S2t) with temperature limiting factor. Results from primary data: (a) artificial resources: irrigation 16.236 m long, 1 m wide, good quality, semitechnical irrigation, jogging track 1.646 m long, 1,5 m wide, good quality, water source from Tukad Ayung, (b) agricultural resources: paddy, 7 ton/acre, paddy-paddy-paddy, Urea, and Phonska 175 kg/acre each, (c) human resources: mostly live in Kesiman Kertalangu, mostly primary school, farmers aged 35-80 years. The farmers status: 93 owner farmers (54,4%) and 78 sharecroppers (45,6%). The land ownership status: 330 freehold polygons (95.7%) and 15 non-freehold polygons (4.3%). Landowners amounted to 237 people, with the average of ownership is 0,43 acres/people.
      PubDate: 2021-07-30
  • Evaluasi Kesesuaian Lahan Beberapa Komoditas Tanaman Holtikultura Berbasis
           Sistem Informasi Geografis di Kawasan Subak Kecamatan Denpasar Barat

      Pages: 378 - 387
      Abstract: Land Suitability Evaluation of Several Horticultural Crop Commodities Based on Geographic Information Systems in the Subak Area of West Denpasar This study aims to determine the actual and potential land suitability, limiting factors, assumptions of improvement efforts, making land suitability maps, and land use direction maps for vegetable and flower horticultural crops. The plants evaluated included spinach, mustard greens, eggplant, marygold, and sunflowers. This research was conducted in West Denpasar from December 2020 to March 2021. Based on the distribution of subaks in West Denpasar, there are eight subaks. The research method used survey methods to evaluate land suitability, soil analysis, and use matching methods between land quality/characteristics and plant growth requirements evaluated by Ritung et al., (2011). The results showed that the actual land suitability classes for vegetable and flower horticultural crops were classified as S1 (very suitable) to S3 (according to marginal). Land characteristics that act as limiting factors include temperature, drainage, texture, N-Total, and K2O. Improvement efforts can be made by adding fertilizers and constructing a drainage system channel, except for the limiting factor of temperature and texture, which are permanent limiting factors. The potential land suitability classes for vegetable and flower horticultural crops evaluated were S1 (very suitable) to S2 (quite suitable), with a temperature limiting factor. Based on land suitability and limiting factors for land use recommendations that can be developed in West Denpasar, namely eggplant, marygold, and sunflower, horticultural crops have more priority than spinach and greens mustard.
      PubDate: 2021-07-30
  • Pemanfaatan Bakteri Azotobacter untuk Meningkatkan Efisiensi Penggunaan
           Pupuk Urea pada Tanaman Padi (Oryza sativa L.)

      Pages: 388 - 399
      Abstract: Utilization of Azotobacter Bacteria to Increase the Efficiency of Urea Fertilizer Use in Rice Plants (Oryza sativa L.) Rice is a food plant in the form of grasses (Gramineae) originating from the tropical and subtropical continents of Asia and West Africa. Nearly half of the world's population, including Indonesia, uses rice as the staple food consumed to meet food needs. Based on BPS data, the population shows an increase every five years. It is inversely proportional to the decreasing total rice production. One of the efforts to improve the cultivation technology package and increase the quality of intensification is the use of Azotobacter bacteria as a biofertilizer. Based on the isolation results, 52 Azotobacter isolates were found grown on Abhys mannitol agar. Based on the results of the selection of Azotobacter bacterial isolates, it was found that four Azotobacter bacterial isolates had the best effect on root growth of rice plants, namely the Azotobacter PD3, PD23, PD48, and PD51 bacterial isolates. The test results with GC-MS showed that 2 compounds were thought to contribute to increasing the growth of rice plants. These compounds were n-Hexadecanoic acid and oleic acid, which were included in the fatty acid group. The isolates of the Azotobacter PD3, PD48, PD51 bacteria were able to increase the efficiency of using urea by 25-50%. In comparison, the PD23 bacteria were able to increase the efficiency of using urea by 25% based on the number of tillers.
      PubDate: 2021-07-30
  • Pengaruh Jenis Media Tanam dan Varietas terhadap Hasil Tanaman Melon
           (Cucumis melo L.) pada Sistem Irigasi Tetes

      Pages: 400 - 408
      Abstract: The Effect of Planting Media and Varieties on the Yield of Melon (Cucumis melo L.) in Drip Irrigation Systems Melon (Cucumis melo L.) is a fruit crop including the family Cucurbitaceae. Melon is not a plant native in Indonesia but can grow in the tropical region. This fruit is very popular in the community and is often used by hotels as a welcome fruit. Badan Pusat Statistik's (2019) data stated that melon production in Bali increased in 2019 to reach 552.00 tons. This study aimed to obtain the appropriate planting medium for melon cultivation by drip irrigation systems in a greenhouse. The treatments consisted of three types of planting media: husk charcoal media, cocopeat, husk charcoal mixture with cocopeat, and melon varieties suitable for cultivation in a greenhouse using drip irrigation. The results showed the treatment of cocopeat could increase the development of melons. Cocopeat (Mc) can be increase the yield and quality of melons, and this can be seen in the fruit weight (1,214.50 g/plant) and total dissolved solid (11.87 0briks). Golden melon variety (Alisha F1) was able to produce sweeter fruit (11.97 0brix), but the fresh weight was lower (887.33 g / plant).
      PubDate: 2021-07-30
  • The percentage of Bean Common Mosaic Virus (BCMV) carried by seeds and
           detection of virus position inside long beans (Vigna sinensis L.) seeds in

      Pages: 409 - 416
      Abstract: The percentage of Bean Common Mosaic Virus (BCMV) carried by seeds and detection of virus position inside long beans (Vigna sinensis L.) seeds in Bali Long bean (Vigna sinensis L.) is a horticulture crop with an essential economic value in Indonesia and Bali. Long beans productivity in Bali reached 6023 tons in 2013, and decreased to 5157 tons in 2014. Cases of disease that lowers the production of long beans in Bali were caused by Bean Common Mosaic Virus (BCMV) infection by 56.06%. BCMV can be brought by the seeds (seed-borne disease) and can infect long beans plants since the early stage of development. This research aims to evaluate the percentage of BCMV transmission by commercial long beans seeds, commonly used by farmers in Bali, and observe the location of BCMV inside the seeds. The morphological observation was used to evaluate the percentage of BCMV brought by the seeds by observing BCMV specific symptoms appear on two weeks old long beans seedlings. To observe the location of BCMV inside the long bean seeds, harvested seeds from an infected plant were separated to collect the cotyledon and embryo. The RT-PCR technique was used as a method in this research. The result showed the percentage of BCMV brought by long beans seeds used by farmers in Bali categorized as high. The percentage of BCMV brought by seeds from the highest to the lowest were; variety A 48.39%, variety B 46.66%, variety C 43.59%, variety D 37.83%, variety E 22.86%, and variety F 22.72%. The variation of the symptoms was mosaic vein banding, malformation, and dwarf plant with wrinkled leaves. The BCMV brought by long bean seeds was resides on the embryo.
      PubDate: 2021-07-30
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