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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 9 Documents
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Search results for , issue "Vol.12, No.1, Januari 2023" : 9 Documents clear
Pengaruh Konsentrasi Mikroorganisme Lokal (MOL) dari Rebung Bambu terhadap Pertumbuhan Vegetatif Tanaman Ubi Kayu (Manihot esculenta Crantz) LARAS SETYANINGRUM; I NYOMAN GEDE ASTAWA; IDA AYU MAYUN
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.12, No.1, Januari 2023
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

The Effect of Concentration of Local Microorganisms (Mol) From Bamboo Shoots on the Vegetative Growth of Cassava (Manihot esculenta Crantz) Cassava (Manihot esculenta Crantz) is a multipurpose plant because the stems, leaves, and tubers can be used. This study aimed to determine the effect of the MOL concentration of bamboo shoots on the growth of cassava plants. The research was carried out from January to April 2022 at the Experimental Garden of the Faculty of Agriculture, Udayana University. The study used a Randomized Block Design (RBD) with one factor, which is the concentration of MOL with 4 levels of treatment, namely, control (P0), 60 ml/L of water (P1), 80 ml/L of water (P2) and 100 ml/L of water (P3). Each treatment was repeated six times, so the total treatment unit was 24 treatments. The results showed that the mole treatment of bamboo shoots on the growth of cassava significantly affected the shoot length, number of roots; has significant effect on the variable shoot emergence time and length of the root and an insignificant effect on the variables of the number of shoots, number of leaves and leaf chlorophyll. MOL of bamboo shoots with a concentration of 60 ml/L of water gave the highest yield on all variables, namely the fastest shoot emergence time (9.17 DAP), the highest shoot length (56.83 cm), the highest number of shoots (2.17 piece), the highest number of leaves (34.83 strands), the highest leaf chlorophyll (42.40 SPAD), the highest number of roots (20.33 piece) and the highest root length (59.17 cm).
Identifikasi Senyawa Antijamur Colletotrichum orbiculare dari Filtrat Azotobacter sp. FRELIANT ENES GALETY HUTAGAOL; KHAMDAN KHALIMI; I PUTU WIRYA SUPUTRA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.12, No.1, Januari 2023
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Identification of the Colletotrichum orbiculare antifungal compound from the filtrate of Azotobacter sp. The Anthracnose of watermelon plants caused by the fungus Colletotrichum orbiculare. These pathogens generally live on infected plant residues or on alternative hosts. Utilization of Azotobacter bacteria as a biocontrol against fungal pathogens that cause anthracnose disease in melon plants. The purpose of this study was to determine the antifungal activity of Azotobacter sp. against the fungus C.orbiculare in vitro and to identify antifungal compounds in Azotobacter sp. Filtrate. The results showed that Azotobacter sp. was able to inhibit the growth of the fungus C. orbiculare with a percentage of inhibition of 86.81%, when compared to the control in in vitro testing. Azotobacter sp. Filtrate at a concentration of 50% was able to inhibit the growth of the fungus C. orbiculare with a percentage of inhibitory power of (98.99%) when compared to the control in in vitro testing. The results of GCMS analysis showed that the antifungal compounds produced by Azotobacter sp. Pp3 are 2,4 Dichlorobenzaldehyde; 3,3-dimethylbutylbis (trifluoromethyl)boranemethylglycine;1,2-Diethyl-5-undecylpyrolidine;1-(3,4-dichlorophenyl) cyclopropane carboxylic acid; Acetamide, N-(3,4,5-tribromophenyl)-2-chloro-; 2,3-dihydro-3,5-dihydroxy-6-methyl-4h-pyran-4-one; 2,4,5-Triselena-1,3-diborole,1,3-bis(2,3-dimethylbut-2-yl)-; Pentanal,5-hydroxy-,(2,4-dinitrophenyl)hydrazone;Dithiocarbamate, S-methyl-,N-(2-methyl-3-oxobutyl)-;1-Chloro-2-methyl-1-morpholino-1,3-butadiene;Silane, [[3-(3-bromophenyl)-3-butenyl]oxy]trimethyl-;Acetimide,2,2,2-trifluoro-n-hexyl. The results of this study provide new information about antifungal compounds that have antifungal activity against the fungus C. orbiculare.
Pengendalian Penyakit Kudis (Diaporthe phaseolorum C&E.) Buah Jeruk Siam (Citrus nobilis L.) Secara Hayati, Nabati dan Mekanik PANDE WAYAN OKTARDITYA SUDARMA; I MADE SUDANA; NI WAYAN SUNITI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.12, No.1, Januari 2023
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Utilization of Biologic, Biopesticide and Mechanic to Control Scabies Disease Pathogen (Diaporthe phaseolorum C&E.) Growth on Siam Orange Fruit (Citrus nobilis L.) Siam orange is the main commodity from Bali, more precisely located in Gianyar, Bali. The disease that most attacks the Siam orange is scab caused by Diaporthe phaseolorum. Scab attacks the skin of orange fruits shows symptoms that look like spots, brown to gray, slightly protruding like a cork, and rough texture. Treatment by spraying antagonist agents once a week. The type of antagonist used was 3 antagonist microbes, Balinese spice solution, and mechanical treatment using plastic. Aspergillus aculeatus treatment, namely the use of the fungus Aspergillus aculeatus, was the most effective in suppressing the growth of scabs on Siam orange plants. AL treatment succeeded in suppressing the scab pathogen well. The mean of Aspergillus aculeatus treatment is the smallest in the percentage of disease on tree, which is 60%, and the mean intensity of AL disease is the smallest, which is 28.14%. Control using natural enemies is very influential in suppressing the growth of scab pathogens in siam orange fruit caused by D. phaseolorum. The most effective treatment in suppressing the intensity of pathogenic disease-causing scabs in Siam oranges is AL treatment using the antagonist fungus Aspergillus aculeatus which can suppress the deseases of scab up to 28.14%.
Pengaruh Pemupukan terhadap Peningkatan Produksi dan Kualitas Buah Jambu Biji (Psidium guajava L.) GHADING SEPTA PRATAMA; I NYOMAN RAI; I WAYAN WIRAATMAJA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.12, No.1, Januari 2023
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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The Effect of Fertilization on Increasing Production and Quality of Guava Fruit (Psidium guajava L.) This study aimed to determine the effect of fertilization on increasing production and quality of Guava Fruit. The study was carried out at the Experimental Garden of the Faculty of Agriculture Udayana University, from January to June 2022. The study used a randomized block design with a single factor and 6 replications, the treatments was fertilization consisted of 4 levels i.e., without fertilizer (Pt), fertilized with compost only (Pk), fertilized with compost + macro fertilizer N, P, K, and Ca, (Pm) and fertilized with compost + macro fertilizer N, P, K, and Ca + micro fertilizer ZnSO4 and CuSO4 (Pb). The results showed that the highest fruit weight per tree (4843.65 g) obtained at the fertilization with compost + macro fertilizer N, P, K, and Ca (Pm). Fertilization with compost + macro fertilizer N, P, K, and Ca (Pm) also gave the highest number of fruits formed per tree, number of harvested fruits per tree, level of sweetness of the fruit, and leaf chlorophyll.
Analisis Fitokimia Ekstrak Buah Purnajiwa dengan Metode Kromatografi Lapis Tipis RAINHARD SIANTURI; I KETUT SUADA; I GEDE PUTU WIRAWAN
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.12, No.1, Januari 2023
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Phytochemical Analysis of Purnajiwa Fruit Extract by Thin Layer Chromatography Method Tanaman Purnajiwa merupakan tanaman langka di indonesia dan dimanfaatkan oleh masyarakat sebagai obat tradisional. Tanaman tersebut diduga mengandung berbagai senyawa fitokimia terutama pada buahnya. Untuk mengetahui senyawa tersebut dapat dimaserasi dengan pelarut etanol 96%. Hasil yang didapat berupa rendemen sebanyak 4% kemudian dianalisis menggunakan metode kromatografi lapis tipis. Hasil penelitian yang didapatkan dari analisis KLT dalam ekstrak buah purnajiwa analisis KLT dalam ekstrak buah purnajiwa mengandung 3 senyawa yaitu (1) senyawa flavonoid dengan nilai rf 0,43 sesuai dengan standar baku dengan ciri warna cokelat hitam secara visual dan berwarna kuning hijau dengan sinar UV 254 nm dan 366 nm, (2) senyawa fenolik dengan nilai Rf 0,78 sesuai dengan standar baku dengan ciri warna cokelat secara visual dan warna merah hitam dengan sinar 254 nm dan 366 nm, (3) senyawa steroid dengan standar baku pembanding ß-sitosterol menghasilkan nilai Rf standar baku pembanding 0,78 dan 0,76 dengan warna hitam biru dengan sinar UV 254 nm dan 366 nm.
Pengaruh Jenis Mulsa dan Konsentrasi Pupuk Organik Cair terhadap Pertumbuhan dan Hasil Tanaman Cabai Besar (Capsicum Annum L.) IDO RODO SIMANJUNTAK; I NYOMAN RAI; I MADE SUKEWIJAYA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.12, No.1, Januari 2023
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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The Effect of Mulch and Liquid Organic Fertilizer on Growth and Production of Red Chilli (Capsicum annuum L.) Chilli (Capsicum annuum L.) is one type of vegetable plant that has high economic value and high demand in Indonesia. Organic mulch treatment and liquid organic fertilizer are among the organic farming techniques could be used to increase the production of red chilli. The aim of the study was to find the type of organic mulch and concentration of liquid organic fertilizer Agrobost to increase the production of red chilli. The research used a randomized group with split plot design in separate plots with two treatment factors. The first factor was mulch treatment consisting of 3 levels, i.e. without mulch, husk charcoal mulch, and saw shaved mulch. The second factor was the concentration of liquid organic fertilizer with 3 levels of treatment, i.e. without giving liquid organic fertilizer, giving liquid organic fertilizer at concentration of 7.5 mL/L of water, and 15 mL/L of water. The results showed that there was no interaction between mulch treatment and liquid organic fertilizer on the growth and yield of large red chilli plants. Giving husk charcoal mulch could increase the relative water content of leaves, number of fruit formed, and suppress weed populations. Liquid organic fertilizer with a concentration of 15 mL/L of water could increase plant height, leaf chlorophyll content, and leaf relative water content.
Pengaruh Fungisida Berbahan Aktif Tunggal dan Campuran Metiltiofanat dan Karbendazim Terhadap Pertumbuhan Jamur Colletotrichum scovillei Secara In Vitro TESSALONIKA G SIANIPAR; KHAMDAN KHALIMI; I DEWA PUTU SINGARSA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.12, No.1, Januari 2023
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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The Effect of Concentration of Single Active Ingredients and Mixture of Methylthiofanate and Carbendazim on the Growth Of Mushrooms Colletotrichum scovillei In Vitro Anthracnose is still the main disease in chili plants, anthracnose in chili peppers can be caused by some of the fungal species Colletotrichum. According to a report obtained from a field survey in 2018 found that Colletotrichum scovillei fungus is a species that infects large chili plants in Bali. An effort to control anthracnose is to use fungicides with active ingredients methylthiofanate and carbendazim. This study aims to determine the appropriate concentration of fungicides with the active ingredients of methylthiofanate, carbendazim and a mixture of methylthiofanate and carbendazim to inhibit the growth of the fungus C. scovillei in vitro. The fungicide inhibition test was carried out using the Poisoned Food Technique. The results showed that the active ingredient fungicide methylthiofanate, carbendazim, a mixture of methylthiofanate and carbendazim at a concentration of 1.5 ml/l effectively inhibited the growth of the fungus C. scovillei in vitro. The results of this study provide information that the tested fungicides are effective in inhibiting the growth of the fungus C. scovillei which causes anthracnose on chili peppers in Bali.
Pengaruh Beberapa Konsentrasi Larutan Chrysal terhadap Vase Life Bunga Potong Hortensia (Hydrangea macrophylla) JEYANTHI VERINA; I NYOMAN GEDE ASTAWA; I MADE SUKEWIJAYA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.12, No.1, Januari 2023
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Effect of Several Concentrations of Chrysal Solution on Vase Life of Cut Hydrangea Flowers (Hydrangea macrophylla) Hydrangea or hydrangea flowers has a unique color and shape of flower buds. However, like other horticultural products, cut flowers have a relatively short vase life (perishable). The decrease in the quality of cut flowers after postharvest is caused by the ongoing respiration process. For the quality of cut flowers to remain fresh for a relatively long time, cut flowers need to be given post-harvest handling so that the quality of cut flowers remains good, which is by using a preservative solution. In short, preservative solutions generally contain sugar, germicide, and citric acid which can help prolong vase life. This study aims to determine the effect of chrysal solution in prolonging the vase life of hydrangea flowers and to determine the best concentration of preservative solution to maintain the vase life of hydrangea flowers (Hydrangea macrophylla). The study used a single factor completely randomized design (CRD) in the form of Chrysal preservative solution with concentrations of 0 ppm (C0), 5000 ppm (C1), 7500 ppm (C2), 10000 ppm (C3), and 12500 ppm (C4). The results showed that the best concentration of Chrysal obtained was with a concentration of 10000 ppm chrysal solution with a long vase life of 11.20 days.
Pemupukan Berimbang Spesifik Lokasi Melalui Evaluasi Kesuburan Tanah di Lahan Sawah Kecamatan Klungkung Provinsi Bali DEWA AYU PUTU SRI WAHYUNI; I DEWA MADE ARTHAGAMA; NI MADE TRIGUNASIH
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.12, No.1, Januari 2023
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Location Specific Balanced Fertilization Through Evaluation of Soil Fertility Status in Rice Field, Klungkung District, Bali Province Rice is the main commodity cultivated by farmers in Indonesia, but there are obstacles in the productivity of rice plants, one of which is fertilization. Location-specific balanced fertilization is carried out to determine the application of fertilizer according to the fertility status of paddy fields so that fertilization will be more efficient. This study aims to determine soil fertility status, spatial distribution of soil fertility status, and provide site-specific balanced fertilization recommendations for paddy fields in Klungkung Sub-district area. This research using survey methods and soil tests in the laboratory and integrated using Geographic Information System (GIS). This research was initiated by spatial analyst for mapping the Land Unit (SLH) area with overlaid the thematic maps (i.e., soil types, slope, and paddy field area). Then four land unit maps were obtained, and soil samples were taken by purposive sampling and the chemical properties of the soil were analyzed including: CEC; KB; C-organic; P-total; and K-total. The results showed that the soil at the study site had three soil fertility statuses, namely low fertility status located at SLH II (Tangkas Village) with an area of 37.53 ha and SLH III (Selat Village) with an area of 46.26 ha, medium fertility status located at SLH IV (Akah Village) with an area of 36.31 ha, while high soil fertility status is located in SLH I (Jumpai Village) with an area of 96.53 ha. Parameters of low P-total and total K content in SLH II (Tangkas Village) and SLH III (Selat Village) became a limiting factor in soil fertility status, so it was necessary to add 100 kg/ha of SP-36 fertilizer, Phonska 100 NPK fertilizer kg/ha, and the addition of KCl fertilizer as much as 100 kg/ha.

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