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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.
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Articles 18 Documents
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Search results for , issue "Vol.7, No.4, Oktober 2018" : 18 Documents clear
Perkembangan Populasi Liriomyza brassicae Riley (Diptera: Agromyzidae) dan Struktur Komunitas Parasitoid yang Berasosiasi dengan Tanaman Kubis-kubisan (Brassicaceae) di Provinsi Bali WAYAN SUDIANTARA PUTRA; I WAYAN SUPARTHA; DWI WIDANINGSIH
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.4, Oktober 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Populations Development of Liriomyza brassicae Riley (Diptera: Agromyzidae) and Community Structure of Parasitoid Associated with Cabbage (Brassicaceae) in Bali The research to find the morphological characteristics of Liriomyza brassicae, density and population development of L. brassicae, the community structure of parasitoid associated with cabbage (Brassicaceae) in Bali. This research was conducted in Baturiti Village (<850 m asl) Tabanan Regency, Kintamani Village (850-1000 m asl) Bangli Regency and Kembang Merta Village (> 1000 m asl) Tabanan Regency. The research was carried out from January 2018 to March 2018. The sampling method was carried out purposively and the number of samples taken from 20-50 leaves were attacked by Liriomyza. Identification of Liriomyza and parasitoid was carried out at the Integrated Pest and Disease Control Laboratory (IPM Lab) Faculty of Agriculture, Udayana University. The results showed that the morphological characteristics of L. brassicae namely mesonotum were black with yellow on the side, the scutellum was yellow with both brown corners colored, coxa and femur brownish yellow, yellow mesopleura, and the dorsal abdomen had a longitudinal line that cut the segment first abdomen to second abdomen. The result showed that population density of L. brassicae highest in broccoli at (> 1000 m asl) and the lowest in green mustard at (<850 m asl). The result showed that population development of L. brassicae highest at plant age 5 MST and population decline occurred at the plant age of 9 MST. The results also showed that there were 2 species of parasitoids associated with L. brassicae namely Opius sp., and Hemiptarsernus varicornis. The diversity index, abundance index, and parasitoid domination index associated with L.brassicae were highest in broccoli at (> 1000 m asl) and lowest in mustard at (<850 m asl).
Kepadatan Populasi dan Persentase Serangan Hama Tungau Merah Tetranychus Urticae Koch (Acarina : Tetranychidae) pada Tanaman Jeruk Siam (Citrus Nobilis Lour) yang di Perlakukan dengan Akarisida Piridaben 135 g/l NI NYOMAN PEBRIANI; DWI WIDANINGSIH; NI NENGAH DARMIATI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.4, Oktober 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Population Density and Presentage of damage Red Mite Tetranychus urticae Koch (Acarina : Tetranychidae) on Siam Citrus (Citrus nobilis Lour) treated with Acaricide Pyridaben 135 g/l This research was carried out in Sekaan village, Kintamani District, Bangli Regency, from January until March 2018. The study used Randomized Block Design (RAK) with 5 acricide treatments of I, II, III, IV, and control were 0.125 ml / l, 0.25 ml / l, 0.375 ml / l, 0.5 ml / l and 0 ml/l, respectively. Piridaben acaricide had a significant effect on population density and percentage damage of T. urticae. The highest population density and Percentage damage of T. urticae on leaves and fruit was found at control and the lowest at 0.5 ml / l treatment.
Efikasi Insektisida Imidakloprid 25% terhadap Struktur Populasi (Myzus persicae SULZER) dan Musuh Alami pada Tanaman Cabai Merah (Capsicum Annuum L.) I GEDE AGUS ADI WIRADARMA; KETUT AYU YULIADHI; DWI WIDANINGSIH
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.4, Oktober 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Efficacy Insecticide Imidaklofrid 25% Against The Natural Enemy and Population Structure (Myzus Persicae SULZER) On Red Chili (Capsicum Annuum L) This study aims to determine the effect of insecticides made from Imidacloprid 25% active against the Myzus persicae pest population structure and natural enemies. The results showed that the treatment of insecticide Imidakloprid 25% had significant effect on the abundance of M. persicae, M. persicae density, and the abundance and diversity of natural enemies in red chili plant. The highest population abundance of M. persicae was found in the control treatment with an average of 7.24 and the lowest in the treatment dose of 200 g/ha with an average of 0.56 plants on ten leaves. Treatment of Insecticide Imidacloprid 25% also influenced the density of M. persicae, the highest density was found in the control treatment that was 0.23 head/m2 while the lowest was found in the treatment of insecticide dose 200 g/ha was 0.09 head/m2. Treatment Insecticide Imidakloprid 25% also affects the existence of natural enemies in chili planting. Found two types of natural enemies of the predator and parasitoid groups. From the predatory group Menochilus sexmaculatus and from the parasitoid group Aphidiid, the observed parasitoid is the mummi M. persicae. The highest abundance of natural enemies was found in the control treatment with an average of 11.55 while the lowest abundance at the treatment dose was 200 g/ha with an average of 3.14. Imidacloprid 25 % Insecticide also affects the diversity of natural enemies, the highest diversity was found in the control treatment of 0.14% while the lowest diversity was found in the 200 g/ha dose of insecticides treatment of 0.05%.
Daftar Isi JAT Vol. 7, No. 4, Oktober 2018 Pengelola JAT
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.4, Oktober 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Daftar Isi JAT Vol. 7, No. 4, Oktober 2018
Pengaruh Perlakuan Konsentrasi Kalsium Klorida (Cacl2) dan Suhu Penyimpanan terhadap Fisikokimia Buah Salak Bali (Salacca zalacca) RIAN AZZUMAR; MADE SUDIANA MAHENDRA; ANAK AGUNG GEDE SUGIARTA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.4, Oktober 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Effect of Calcium Chloride Concentration (CaCl2) and Storage Temperature on Physico-Chemical of Salacca zalacca Fruit This study aims to know the effect of calcium chloride (CaCl2) and determine the best concentration of calcium chloride and storage temperature on physico-chemical salak fruit. The research method used was split plot design which consisted of two treatments that are concentration of calcium chloride (CaCl2) (sub plot) with four levels; 0%, 9%, 12% and 15% storage temperature (main plot) with two levels; 28±2oC and 15± 2oC. The observation included weight loss, hardness, respiration rate, total dissolved solids, total acid content, vitamin C content, pH test, organoleptic test and shelf life. The result showed that storage of salak fruit with application of calcium chloride had the lowest respiration rate at temperature 28±2oC and 15±2oC. The treatment had the lowest respiration rate was concentration of calcium chloride 12% with the lowest respiration rate ( 2,54 ml/kg.hour of O2 and 2,45 ml/kg.hour of CO2). The concentration of chloride at 12% and storage at temperature 15±2oC was the best treatment to maintain physico-chemical characteristics with parameters wight loss, hardness, total dissolved solids, total acids content, pH test, and shelf life. Organoleptic test showed that a combination of concentration of calcium chloride 12% with storage temperature of 15±2°C have a level of acceptance that are favored by panelists. Calcium chloride of 12% extended the shelf life of salak fruit for 7 days at 28±2oC and 11 days at a temperature 15±2oC, respectivly.
Pengaruh Rhizobakteria terhadap Hasil dan Mutu Benih Kacang Tanah (Arachis hypogaea L.) NI NYOMAN TRISNA KENCANA DEWI; I DEWA NYOMAN NYANA; I GUSTI NGURAH RAKA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.4, Oktober 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Effect of Rhizobacteria on the Results and Quality of Peanut Seeds (Arachis hypogaea L.) This research aims to know the kind of rhizobakteria that have a better capability in improving yield and quality of seeds. The research was carried out in September – December 2017. The research started from the time of planting seed quality test until after harvesting. This study used a Randomized Complate Block Design (RCBD). The treatments tested were four types of rhizobakteria and one control (without application of rhizobakteria). Observations were made to plant height, number of leaves, the content of chlorophyll, the filled poods per plant, contains the seed weight per Ha, seedling vigor, storage vigor, electrical conductivity and weight of 1000 of seed. The results showed that the four rhizobacteria, RB35 (undis 1), RB36 (undis 3), RB3 (Kara Benguk), and RB9 (lamtoro plant) were able to increase the yield and quality of seeds. Peanut seeds yield per hectare with rhizobacteria treatment was able to increase yield with a range of 66,49% - 128,35% compared with controls was 1.94 tons / ha. Rhizobakteria increased the weight of 1000 seeds with a range of 42,43% - 70,29% compared with controls of 279.24 g. Treatment of rhizobacteria increased storage vigor of seeds by a range of 5.29% - 9.52% compared with control. Moreover also has real against the peanut plant growth (plant height and the number of leaves), the content of chlorophyll, the number of pods containing seed quality (physical and physiological).
Struktur Populasi Hama Pomacea sp. (Mesogastropoda: Ampullariidae) yang Menyerang Padi Sawah (Oryza sativa L.) Pada Ketinggian 500 Mdpl di Kabupaten Tabanan I WAYAN KASIDIYASA; NI NENGAH DARMIATI; I MADE MEGA ADNYANA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.4, Oktober 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Population Structure of Pomacea sp. (Mesogastropoda: Ampullariidae) On Paddy Rice (Oryza sativa L.) At Altitude <500 Dan> 500 mdpl Tabanan Regency Research conducted from January 2018 until March 2018 in 2 different places that is in Blayu Village, Marga District and Puseh Village, Baturiti District, Tabanan Regency. The purpose of this research is to know the population structure of Pomacea sp. on rice paddy at altitude <500 and> 500 mdpl Tabanan regency. The materials used in this research are rice plants and Pomacea sp. in the field. In this research use survey method to determine population structure of Pomacea sp. on wet rice paddies conducted in Blayu Village, Marga District and Puseh Village, Baturiti District, Tabanan Regency. Observation using absolute method of observation is done directly without using tools such as traps. Observations were made 2 times a week from rice age 1 week after planting until rice grains grow. Observations made in the morning. Observation of Pomacea sp. shows the following results: Population density P. canaliculata small phase, pre adult and adult at altitude < 500 mspl (0.043, 0.044, and 0.041 individual/m2) is higher than in height > 500 mdpl (0.035, 0.042, and 0.038 individuals/m2). At an altitude of <500 mdpl population of P. canaliculata age 1 - 15 HSM, 16 -25 HSM, and 26 - 3 years after the highest hatch occurred at age 28 HST ie 7.67 snails / are, 4.20 snails / , 40 snails / acre while at height> 500 mdpl population P. canaliculata age 1 - 15 HSM, 16 -25 HSM, and 26 - 3 years after the highest hatch occurred at age 31 HST ie 6.07 snails / are, 5, 00 snails / are and 3.93 snails / are. The distribution pattern of P. canaliculata at <500 and> 500 mdpl is clumped.
Struktur Populasi Keong Murbei Pomacea Spp. (Mesogastropoda : Ampullariidae) Pada Tanaman Padi Sawah di Kabupaten Jembrana Provinsi Bali I PUTU DEDI ADNYANA; I WAYAN SUPARTHA; I MADE MEGA ADNYANA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.4, Oktober 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Population Structure of Murbei Conch Pomacea spp. (Mesogastropoda: Ampullariidae) On Paddy Rice Field in Jembrana District of Bali Province The purpose of this study is to determine the population structure of mulberry snails. This research was carried out in October 2017 - March 2018. The method used in this study was a survey method with a diagonal model. Biological parameters are carried out by randomly taking egg groups and maintaining them in the Integrated Pest and Disease Laboratory, Faculty of Agriculture, Udayana University. The results showed that the population density of P. canalicuta in the group of eggs and conch with a size (0.5-1cm), (> 1-2.5cm), (> 2.5-4cm) higher in Subak Pangyangan and lower in Subak Tegalwani. Distribution of P. canaliculata in Tegal Wani Subak and Pangyagan Subak has a groups pattern. The age structure of P. canaliculata in Subak Tegal Wani and Subak Pangyangan from egg groups aged 7-14 days, (0.5-1 cm) aged 15-25 days, (> 1 - 2.5 cm) aged 26-49 days, (> 2.5 - 4 cm) 50-60 days old. The highest peak of the population development of P. canalicuta in Subak Tegal Wani occurs at the age of the plant 8 weeks after planting, while the highest peak in Subak Pangyangan occurs at the age of the plant 6 weeks after planting.
Persebaran, Populasi dan Persentase Serangan Citripestis Sagittiferella Moore (Lepidoptera: Pyralidae) Pada Buah Jeruk Besar di Kabupaten Bangli dan Gianyar KADEK ADI MARTHANA; I GUSTI NGURAH BAGUS; I WAYAN SUSILA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.4, Oktober 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

The Distribution, Population and Damage Percentage of Citripestis Sagittiferella Moore (Lepidoptera: Pyralidae) on Large Citrus Fruits in Bangli and Gianyar Regencies This research was conducted in Bangli (Kintamani District) and Gianyar Regencies (Sukawati, and Payangan Districts), and in Integrated Pest Management and Disease Laboratory, Faculty of Agriculture, Udayana University, from December 2017 to February 2018. The purpose of this research are to know the distribution, population and demage percentage of citrus borer, Citripestis sagittiferella. This research used a survey method. The research area was divided into three altitudes, Sukawati District (0-450 m asl), Payangan District (altidute> 450-800 m asl), and Kintamani District (altidute>800-1000 m asl). The results showed that C. sagittiferella was found evenly distributed in all altitude locations, in Sukawati District, Payangan District and Kintamani District with total population of 3684 larvae, 2152 larvae and 916 larvae respectively. The average larva population found in citrus fruits damage was 6.28 larvae per fruit. Percentage of damage in Kintamani, Payangan, and Sukawati Districts were 30.37%, 25.26%, and 18.18%, respectively. The correlation test results show a very strong correlation between the larval population and the percentage of damage with r = 0.988.
Efikasi Insektisida Abamektin 18 g/l Terhadap Keragaman Spesies, Kelimpahan Populasi Werengdaun Dan Hasil Panen Pada Tanaman Padi Sawah (Oryza sativa L.) I GEDE WINDU PUTRA; I WAYAN SUPARTHA; I WAYAN SUSILA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.4, Oktober 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Efficacy of 18 g / l Abamectin Insecticide Against Species Diversity, Population Abundance of leafhoppers and Harvesting on Paddy Paddy Crops (Oryza sativa L.) This research was carried out in Buwit Village, Kediri District, Tabanan Regency, starting in September to November 2017. The research objective was to determine the effect of Abamectin insecticide 18 g/l on species diversity, population abundance and yield. This study used a randomized block design (RBD) with 5 replications and 5 treatments (control, 0.50g / l; 1.00g / l; 1.50g / l; 2.00g / l). The results showed that leaf leafhopper species diversity was low, as evidenced by the Shanon diversity index value was <1.5. The low value of species diversity index is caused by the low number of species in each treatment. Relatively higher variation in control compared to treatment. Abundance The highest population of nymphs and leaf leafhoppers was seen at 49 days after planting as much as 8.57. Components of harvest also show a significant difference between control and treatment.

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