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E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology)
Published by Universitas Udayana
ISSN : 23016515     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
E-Jurnal Agroekoteknologi Tropika (JAT) adalah peer-reviewed, open access jurnal, diterbitkan oleh Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana. JAT menerbitkan hasil peneitian original dan review artikel dalam bidang Ilmu tanah dan lingkungan, Agronomi, hama dan penyakit tumbuhan, dan arsitektur lanskap. Penulis diharapkan mengimkan karya tulisnya yang belum pernah dipublikasikan, sedang di-review atau sedang dipertimbangkan untuk diterbitkan di jurnal atau media lain secara lengkap. Ruang lingkup JAT mencangkup, tetapi tidak terbatas pada bidang berikut: kimia dan kesuburan tanah, biologi tanah, fisika dan konservasi tanah, manajemen suberdaya lahan, pengendalian hama dan penyakit terpadu, hama tanaman, penyakit tanaman, biopestisida, bioteknologi tumbuhan, agronomi dan hortikultura, benih dan pemuliaan tanaman, ekofisiologi, dan arsitektur lanskap.
Arjuna Subject : -
Articles 468 Documents
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Identifikasi Penyebab Penyakit Bercak Merah pada Tanaman Stroberi (Fragaria sp.) di Bali dan Potensi Pengendaliannya dengan Jamur Antagonis Secara In Vitro I GUSTI AYU ARI SANTIKADEWI; GUSTI NGURAH ALIT SUSANTA WIRYA; TRISNA AGUNG PHABIOLA; I PUTU WIRYA SUPUTRA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.11, No.2, April 2022
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Identification of Pathogenic Fungi causes Red Leaf Spot on Strawberry Plants (Fragaria sp.) in Bali and Control Potential with Antagonist Fungi Strawberry (Fragaria sp.) is a subtropical fruit plant that was first discovered in Chile, America and has high economic value. Strawberry plants growing in Bali show symptoms of pathogenic fungi attack. Symptoms include red spots on the leaf surface. The purpose of this study was to identify pathogenic fungi that cause disease in strawberry plants in the center of strawberry cultivation in Bali. The activities carried out in this study were (1) sampling, (2) isolation of pathogenic fungi from symptomatic strawberry plant parts, (3) pathogenicity test, (4) morphological identification of pathogenic fungi, and (5) potential inhibition test of antagonistic fungi. against pathogenic fungi. This research was conducted in Pancasari Village, Buleleng Regency and Candi Kuning and Kembang Mertha Villages, Tabanan Regency and continued at the Plant Disease Laboratory, Faculty of Agriculture, Udayana University, Denpasar. The results of this study succeeded in identifying Pestalotiopsis sp. as a pathogen causingred spot disease on strawberry leaves in Bali and the potential for biological control using antagonistic fungi in vitro showed that Gliocladium sp. and Trichoderma asperellum can suppress the growth of pathogenic fungi on strawberry plants by > 80%, Trichoderma viride up to > 90% and Trichoderma koningii and Trichoderma harzianum up to > 50%.
Pengaruh Aplikasi Dolomit terhadap Mutu Benih Jagung (Zea mays L.) pada Tanah Masam di Kebun Percobaan Fakultas Pertanian Universitas Udayana ALPREDO CHRISTIAN STOMPUL; NI LUH MADE PRADNYAWATHI; NI NYOMAN ARI MAYADEWI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.11, No.3, Juli 2022
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Effect of Dolomite Application on the Quality of Corn Seeds (Zea mays L.) on Acid Soil in Experimental Gardens, Faculty of Agriculture, Udayana University The decline in maize production in Bali is caused by various factors such as poor cultivation techniques, lack of agricultural land due to land conversion, limited fertile land due to acidic soil conditions and the availability of quality seeds that are still lacking. The application of dolomite on acid soil is expected to improve the quality of corn seeds. This study aims to determine the difference in the effect of dolomite application and without dolomite application on acid soil on corn seed quality (physical and physiological quality). This study used a paired experiment to compare the quality of corn seeds produced with dolomite application and without dolomite application. The results showed that the application of dolomite was able to significantly increase the average weight of 1000 seeds, germination, shelf life vigor, growth speed vigor of 2.55%, 1.23%, 6.27%, 3.43 % when compared with no dolomite application, while the simultaneous growth of vigor showed no significant difference between dolomite application and without dolomite application.
Identifikasi Penyebab Penyakit Bercak Daun Mycosphaerella pada Tanaman Stroberi (Fragaria sp.) di Bali dan Potensi Pengendaliannya dengan Jamur Antagonis secara In Vitro GUSTI AYU DWITA ANDRAWINA; GUSTI NGURAH ALIT SUSANTA WIRYA; NI WAYAN SUNITI; I PUTU WIRYA SUPUTRA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.11, No.2, April 2022
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Identification of Pathogenic Fungi causes Mycosphaerella Leaf Spot on Strawberry Plants (Fragaria sp.) in Bali and Control Potential with Antagonist Fungi Strawberry (Fragaria sp.) is a fruit cultivation plant that develops in Indonesia and has attractiveness and high economic value. Strawberry plants that grow at the center of strawberry production in Bali show symptoms of pathogenic fungus attack. Symptoms caused by the presence of brownish purple spots with a white center on the leaves. The purpose of this study was to identify pathogenic fungi that caused Mycosphaerella leaf spot disease on strawberry plants located at the center of strawberry production in Bali. The activities carried out in this study were (1) sampling and calculating the percentage of Mycosphaerella leaf spot disease on strawberry plants, (2) isolation of pathogenic fungi from symptomatic leaves of strawberry plants, (3) pathogenicity testing, (4) identification of pathogenic fungi, and (5) test the potential inhibition of antagonistic fungi against pathogenic fungi. This research was conducted in Candi Kuning and Br Kembang Merta Village, Tabanan Regency and Pancasari Village, Buleleng Regency, and continued at the Plant Disease Laboratory, Faculty of Agriculture, Udayana University. The results of this study were successful in identifying Mycosphaerella fragariae as a pathogen causing leaf spot disease on strawberry plants in Bali and the potential for biological control by utilizing antagonistic fungi in vitro showed that Trichoderma viride, Trichoderma asperellum, Gliocladium sp. can suppress the growth of pathogenic fungi in strawberry plants of > 90%, Trichoderma harzianum and Trichoderma koningii up to >80%.
Hubungan Kadar Bahan Organik Tanah dengan Keanekaragaman Makrofauna Tanah pada Lahan Pertanian di Kecamatan Baturiti STEFANIA DESYANI DERGONG; A.A. ISTRI KESUMADEWI; I WAYAN DANA ATMAJA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.11, No.3, Juli 2022
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

The Relationship between Soil Organic Matter Levels with Diversity of Soil Macrofauna on Agricultural Land in Baturiti District This study aims to determine the level of soil macrofauna diversity on agricultural land in Baturiti District and to determine the relationship between soil organic matter levels and soil macrofauna diversity on agricultural land in Baturiti District. Sampling locations were taken on two types of land use, two organic land cultivation systems at an altitude of 903-1259 meters above sea level and conventional land at an altitude of 925-1173 meters above sea level. The method in this study is the sampling method, taking soil macrofauna and soil organic matter by direct observation to the research location at the sampling point, namely 5 types of organic agricultural plants and 5 types of conventional agricultural plants which are considered representative of the presence of soil macrofauna and represent each type of plant in the study area. Soil macrofauna sampling was carried out using 2 methods, namely pit fall trap, quadratic method and hand sorting. Sampling of organic matter was carried out by hand sorting method, on organic and conventional land in Baturiti District. Soil macrofauna found in organic and conventional land were identified and calculated values: Diversity index (H'), Abundance index (R1), Dominance (C). Soil from organic and conventional land was analyzed for organic matter content (C). The data obtained were analyzed by hypothesis testing (t) using the SPSS application to determine the relationship between soil organic matter content and soil macrofauna. The results of this study indicate that the level of soil macrofauna diversity on organic land with an altitude of 903-1259 mdpl is in the medium category (1.493- 2.421) and the level of soil macrofauna diversity on conventional land with an altitude of 962- 1318 mdpl is in the medium category (1.011- 1,961). On organic land with an altitude of 903- 1259 mdpl and conventional land with an altitude of 962 mdpl and 1173 mdpl, there is no relationship between soil organic matter content and macrofauna diversity. Based on the results of the hypothesis test, it was shown that it was rejected. On conventional land with an altitude of 1318 meters above sea level, there is a relationship between soil organic matter content and macrofauna diversity. Based on the results of the hypothesis test, it shows that it is accepted.
Metode Isolasi Jamur Patogen Serangga (Aschersonia placenta) Menggunakan Media Water Agar dan Potato Sucrose Agar NI MADE SAVITA RASJMAN; I PUTU SUDIARTA; TRISNA AGUNG PHABIOLA; GUSTI NGURAH ALIT SUSANTA WIRYA; I PUTU WIRYA SUPUTRA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.11, No.2, April 2022
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Isolation Method of Insect Pathogenic Fungi (Aschersonia placenta) using Water Agar Media and Potato Sucrose Agar Bali Province is one of the provinces that is famous for its superior agricultural commodities. One of the leading agricultural commodities is citrus. The production of citrus fruits in Bali Province in 2020 is 4,903,341 quintals based on data from the Central Statistics Agency for Bali Province 2021. However, in some citrus-producing areas, citrus fruit production has decreased compared to the previous year. The decline in citrus fruit production is caused by several factors, one of which is the attack of whitefly pests. Whitefly pests can be controlled by utilizing the insect pathogenic fungus Aschersonia placenta. This study aims to determine the isolation method of insect pathogenic fungi Aschersonia placenta using water agar media and potato sucrose agar. The study began with sampling, isolated the fungus and identifying the fungus by morphological characteristics. The results of this study showed that isolation method of A. placenta using water agar media and potato sucrose agar effective for multiply the fungus.
Evaluasi Status Kerusakan Tanah Sawah Berbasis Sistem Informasi Geografis di Kecamatan Baturiti Kabupaten Tabanan, Provinsi Bali RENI ANDRIANI NAIBAHO; NI MADE TRIGUNASIH; I WAYAN NARKA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.11, No.3, Juli 2022
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Evaluation of the Damage Status of Rice Fields Based on Geographic Information Systems in Baturiti District, Tabanan Regency Soil damage is a change in the basic properties of the soil that exceeds the standard criteria for soil damage. This study aims to determine the potential damage to paddy fields, the status of damage to paddy fields, and to make a map of the potential and status of damage to paddy fields. The research was conducted using survey and scoring methods, homogeneous land unit maps were made to determine the sampling point. Based on the results of overlapping maps of slope, soil type, land use and rainfall data, 5 points of homogeneous land units were obtained. Field observations were made to determine the parameters of the thickness of the solum and surface rock, composite soil sampling for analysis of pH, texture, electrical conductivity, number of microbes and intact soil samples for analysis of permeability, bulk density, and porosity. The results of the research on potential soil damage were classified as mild at SLH 1 (Perean Tengah) and 5 (Apuan) and moderate at SLH 2 (Antapan), 3 (Luwus) and 4 (Batunya). The soil damage status was classified as light at SLH 3 (Luwus) with the limiting factor of porosity, SLH 1 (Perean Tengah) and 5 (Apuan) with the limiting factor of permeability. SLH 2 (Antapan) and 4 (Batunya) are not damaged.
Pengaruh Media Simpan dan Letak Biji dalam Buah terhadap Viabilitas Benih Kakao (Theobroma cacao L.) NI KADEK KRISNA JAYANTI; I MADE SUKEWIJAYA; IDA AYU MAYUN
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.11, No.2, April 2022
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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The Effect of Storage Media and Seeds Location in Fruit to the Viability of Cocoa Seeds (Theobroma cacao L.) One of the productivity of cacao plants is determined by the seeds. Cacao seeds are classified as recalcitrant seed that do not have dormancy period, so they need special storage technique and proper seeds selection to maintain their viability. This study aims to determine the effect of storage media and seeds location in fruit to the viability of cacao seeds. This study used factorial completely randomized design consisting of 2 factors with 3 repetitions. The first factor is storage media, consists of 3 levels (cocopeat 100%, cocopeat 50%+husk 50%, cocopeat 50%+saw dust 50%). The second factor is the seed location in fruit, consists of 3 levels (first, middle, and end of fruits). The observed variable includes the percentage of moldly seeds in the storage, seed moisture content, rate of germination, vigor index, germination, hypocotyl length, epycotyl length, and number of leaves. The result of the study showed that storage media very significally affected to the percentage of moldy seeds in the storage, seed moisture content, vigor index, germination, hypocotyl length, and significally affected to the rate of germination. The seed location significally affected to seed moisture content, vigor index, germination, and epycotyl length. There is no significant interaction between storage media treatment and seed location to all benchmark of cacao seed viability observed. The good treatment is in the cocopeat storage media 50%+saw dust 50% with the seeds location in the first and middle of fruit.
Pengaruh Jenis Pupuk Kandang dan Dosis Pupuk Organik Cair dari Limbah Batang Pisang terhadap Sifat Kimia Tanah dan Hasil Bayam Hijau (Amaranthus hybridus L.) YEMIMA INDRI YANI BR BARUS; NI NENGAH SONIARI; I DEWA MADE ARTHAGAMA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.11, No.3, Juli 2022
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Effect of Manure Type and Dosage of Liquid Organic Fertilizer from Banana Stem Waste on Soil Chemical Properties and Yield of Green Spinach (Amaranthus hybridus L.) Organic fertilizers can improve the physical, chemical and biological properties of soil because they contain macro and micro nutrients that are useful for plants. This aims of the study to determine the interaction and effect of type of manure and dosage of Liquid Organic Fertilizer (POC) on soil chemical properties and yield of green spinach which was carried out from July 2021 to November 2021 in Sukadame Village, Tigapanah District, Karo Regency, North Sumatra Province. Banana tree trunks are useful for fertilizing plants, and contain very high phosphorus nutrients. The experimental design used in this study was a completely randomized design (CRD) with a factorial pattern consisting of 2 factors, namely the type of manure and the dose of liquid organic fertilizer with, A0: no manure, A1: goat manure, A2: chicken manure, A3 : cow manure, while the doses of liquid organic fertilizer are B0 : without liquid organic fertilizer, B1 : 0.75 liters of liquid organic fertilizer, B2 : 1.50 liters of liquid organic fertilizer and B3 : 2.25 liters of liquid organic fertilizer and repeated 3 times so that it becomes 48 units of experimental pot. The interaction between the type of manure and the dose of liquid organic fertilizer had a very significant effect on organic C, available K and available P content. The best manure is chicken manure with soil pH (6.40), soil moisture content (16.45%) and total N content (0.66%). The best change in soil chemical properties was treatment with a dose of liquid organic fertilizer at a dose of 0.75 liters, with soil pH (6.40), soil moisture content (17.29%) and total N content (0.67%), and for influence. the yield is at a dose of 0.75 liters of liquid organic fertilizer with a fresh plant weight of 10.83g.
Pengaruh Jumlah Buah dan Jenis Kemasan terhadap Sifat Fisik, Kimia, dan Masa Simpan Buah Tomat (Lycopersicum esculentum Mill.) IDA BAGUS GEDE UPADANA MANUABA; ANAK AGUNG GEDE SUGIARTA; I NYOMAN GEDE ASTAWA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.11, No.2, April 2022
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Effect of Number of Fruits and Type of Packaging on Physical, Chemical Properties and Shelf Life of Tomato Fruit (Lycopersicum esculentum Mill.) The demand for tomatoes increases along with the increase in economic growth and population. Efforts to maintain the quality of tomatoes are to delay ripening using various plastic packaging. This study aims to determine the effect of the right amount of fruit in the packaging and determine the suitable packaging in maintaining the physical, chemical and shelf life of tomatoes. The research was carried out from December 2020 to January 2021 at the Plant Breeding and Seed Laboratory, Faculty of Agriculture, Udayana University, Jl. PB. Sudirman, Denpasar. The experimental design used was a factorial completely randomized design (CRD) with 4 replications and 2 treatment factors so that 24 experimental units were obtained. The 2 treatment factors were as follows: packaging treatment (K) consisted of three treatments K0 = Control (without packaging), K1 = Polypropylene (PP) packaging, K2 = Polyethylene (PE) packaging and number of fruit (T) consisted of two treatments T1 = 3 pieces in a pack, T2 = 4 pieces in a pack. The results showed that the use of polypropylene packaging (K1) and the use of 3 packaged pieces (T1) were able to extend the shelf life of up to 22.75 days, compared to the polyethylene packaging type (K2). The smallest weight loss was found in the treatment of polypropylene packaging type (K1) at 4 Hsp which reached 0.05%. Treatment of the type of polypropylene packaging (K1) showed a low respiration rate at 4 Hsp which reached 22.88 mg CO2/kg/hour. The treatment of polypropylene packaging type (K1) showed the highest hardness level at 4 Hsp, namely 8.40 mm/100/gram/second. The results showed that the number of fruits per package had an effect on weight loss, respiration rate, and shelf life of tomatoes.
Pengaruh Larutan Klorin dan Kemasan Plastic Film terhadap Perubahan Fisiko-Kimia Tomat (Lycopersicum esculentum Mill.) Selama Penyimpanan DWI AGUS ARSANA; I MADE SUKEWIJAYA; ANAK AGUNG GEDE SUGIARTA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.11, No.2, April 2022
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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The Effect of Chlorine Concentration and Tomato Packaging Type on Physical and Chemical Changes during Storage in Tomatoes Plants (Lycopersicum esculentum Mill.) Tomatoes are one of the important commodities that are vulnerable to contamination by various kinds of microorganisms. The thing that can overcome contamination is by washing and packaging. The chlorine compound that is most often used as a sanitizer is hypochlorite. The type of sanitizer used in this study was sodium hypochlorite (NaOCl). Packaging protects quality and sanitation so that consumers receive tomatoes fresher and quality is guaranteed, packaging should not interfere with the process of heat release from respiration. The type of packaging used in this study was LDPE plastic film and white stretch film (WSF). The design used in this study was a completely randomized design (CRD) with two factors and each combination was repeated three times, so that there were 36 experimental units. The first factor is the treatment of chlorine solution concentrations consisting of four levels: without chlorine solution, concentration of 100 ppm, concentration of 200 ppm, concentration of 300 ppm. The second factor is packaging with 3 levels of without packaging, packed with LDPE plastic film, packed with white stretch film (WSF). The results of this study indicate that the combination of washing using chlorine solution and the best packaging slows the physicochemical changes based on vitamin C variables where the decrease in fruit acid levels is shown in the 200 ppm chlorine concentration and packaged with white stretch film (WSF) treatment.

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