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Efektivitas Rizobakteri untuk Menghambat Pertumbuhan Jamur Collectotrichum acutatum Penyebab Penyakit Antraknosa pada Tanaman Cabai Merah Besar (Capsicum annuum L.) Unedo, Dion; Suprapta, Dewa Ngurah; Suniti, Ni Wayan
Agrotrop : Journal on Agriculture Science Vol 14 No 2 (2024)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2024.v14.i02.p11

The Effectiveness of Rhizobacteria to Inhibit the Growth of the Fungus Colletotrichum acutatum that Causes Anthracnose Disease on chili pepper (Capsicum annum L.). Anthracnose in chili pepper caused by the fungus Colletotrichum acutatum is one of the main diseases that affect the production of chili pepper. The use of rhizobacteria as biological agents is considered effective to suppress the spread of anthracnose disease in chili pepper. This study tested the rhizobacteria isolated from the rhizosphere of Graminae and citrus plants to inhibit the growth of the fungus C. acutatum in vitro on PDA media and in vivo on chili peppers. The purpose of this study was to obtain rhizobacteria that could inhibit the growth of fungus C. acutatum, both on PDA media and on chili fruit. The test results showed that the rhizobacteria isolate Yj (isolated from the rhizosphere of citrus plants) could inhibit the growth of the fungus C. acutatum on PDA media by 87.16% compared to the control. In vivo test on chili fruit showed that rhizobacteria isolate Yj could inhibit the growth of C.acutatum fungal colonies by 64.17% when compared to control at 6 days after inoculation.

Evaluasi Kualitas Tanah Sawah Berbasis Sistem Informasi Geografis di Kecamatan Kediri untuk Menentukan Arahan Pengelolaan Tanah Pramudita, I Gede Made; Kartini, Ni Luh; Trigunasih, Ni Made; Saifulloh, Moh
Agrotrop : Journal on Agriculture Science Vol 14 No 2 (2024)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2024.v14.i02.p07

Geospatial Evaluation of Soil Quality in Rice Fields: A GIS-Based Approach for Informed Soil Management in Kediri District. Intensive land use, devoid of conservation efforts, results in a decline in soil quality and diminished crop yields. This research aims to assess the quality of rice fields, identify limiting factors, and offer guidance for appropriate soil management in accordance with the conditions of rice fields in Kediri District. The study was conducted from June 2023 to January 2024 in Subak’s rice fields in Kediri District, Tabanan Regency. The survey method was employed for soil sample collection based on the Land Unit map. Samples were purposively taken and composited, followed by testing for parameters based on the 10 Minimum Data Sets. Research data was presented in map form using QGIS 3.28.5 software. The results, obtained by calculating the Soil Quality Index (SQI), indicate that the quality of rice fields in Kediri District is classified as good (93.7%) in Land Units I, II, IV, and V, with respective SQI values of 24.00, 21.00, 24.33, and 24.00. Additionally, it is classified as very good (6,3%) in Land Unit III, with an SQI value of 19.33. Limiting factors identified include soil bulk density, soil texture, organic carbon content, cation exchange capacity, base saturation, total nitrogen, available phosphorus, and microbial biomass carbon. The recommended soil management practices include the application of organic fertilizer, urea, and TSP/SP-36.

Analisis Kerusakan Tanah pada Lahan Sawah Berbasis Sistem Informasi Geografis di Kecamatan Kuta Utara Kabupaten Badung Girsang, Giyo Brem Dana; Trigunasih, Ni Made; Arthagama, I Dewa Made
Agrotrop : Journal on Agriculture Science Vol 14 No 2 (2024)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2024.v14.i02.p12

Analysis of Soil Degradation in Rice Fields Based on Geographic Information System in North Kuta Subdistrict, Badung Regency. North Kuta district is one of the regions in the Badung district where a portion of the land is utilized as wilderness. The land productivity in North Kuta district is susceptible to degradation due to inconsistent land processing with conservation principles and the high transfer functions of the land. The research aims to assess the potential for land degradation, determine the status of land degradation, identify the distribution of soil degradation, and propose directions for treating land degradation in the wilderness areas of North Kuta district. The research employs a comparative descriptive method. By overlaying land-use maps, slope maps, and land type maps using geographic information systems, five homogeneous land units were identified. The observed land use consists of plains with field observations encompassing surface rocks and solum depth. Laboratory analysis of soil samples was conducted to determine weight contents, total porosity, texture, permeability, pH, electrical conductivity, and microbial count. The determination of degradation status is based on predefined criteria for land degradation. The research results indicate one class of potential soil degradation, specifically the potential for mild soil degradation. The potential for mild degradation is observed in Tibubeneng Village, Kerobokan Village, Kelod Village, Canggu Village, Kaja Village, and Dalung Village. The degradation status in the research area is mild, with porosity being a limiting factor in Changgu Village, Kerobokan, Kelod Village, and Dalung. Recommendations for improving the wilderness in the research area include providing organic material and implementing soil processing.

Pengaruh Varietas dan Berat Umbi terhadap Viabilitas Bibit Bawang Merah (Allium ascalonicum L.) Mulyani, Iluh Sri; Darmawati, Ida Ayu Putri; Mayun, Ida Ayu
Agrotrop : Journal on Agriculture Science Vol 14 No 2 (2024)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2024.v14.i02.p03

The Effect of Variety and Bulb Weight on the Viability of Shallot Seedlings (Allium ascalonicum L.). The demand for shallots continues to increase so production needs to be increased, one of the efforts that can be made is to provide good quality seeds. Viability is a benchmark in determining seedling quality. Seedling viability can be influenced by variety and bulb weight. This study aims to determine the effect of variety and bulb weight on the viability of shallot seedlings (Allium ascalonicum L.). The experimental design used is a completely randomized design (CRD) factorial pattern with two factors. The first factor is variety, namely Bali Karet, Biru Lancor, and Batu Ijo. The second factor is bulb weight, which is large (12-16 g), medium (8-12 g), and small (4-8 g). The research was conducted in the Greenhouse of the Experimental Garden of the Faculty of Agriculture, Udayana University, Denpasar from February to April 2023. The results showed that the variety treatment had a significant effect on the percentage of shoots. The highest percentage of shoots appeared in the Bali Karet variety which was 72.22%. The treatment of bulb weight has a very real effect on the viability of shallot seedlings. The highest viability is found in the weight of large bulb (12-16 g), namely the percentage of shoots appearing 73.33%, the time to appear shoots 5.95 days, shoot length 17.13 cm, root length 13.83 cm, and total dry weight of seedlings 0.74 g, and there is an interaction of varieties and bulb weight that has a very significant effect on shoot length and total dry weight of seedlings. The best treatment combination is found in the Bali Karet variety and the weight of large bulb (12-16 g), namely the highest shoot length and total dry weight of seedlings, namely 16.67 cm and 0.74 g.

Pengaruh Pemberian Konsentrasi Pupuk Organik Cair Daun Kelor terhadap Pertumbuhan dan Kualitas Hasil Tanaman Kangkung Darat (Ipomoea reptans Poir) Putri, Iswahyuni Hartanto; Mahendra, Made Sudiana; Mayun, Ida Ayu
Agrotrop : Journal on Agriculture Science Vol 14 No 2 (2024)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2024.v14.i02.p08

The Effect of The Concentration of Moringa Leaves Organic Liquid Fertilizer on The Growth and Yield Quality of Land Kale Plants (Ipomoea reptans Poir). The land kale plant is a vegetable plant that has many benefits and is a source of fiber, protein, vitamin A, iron and calcium. This study aims to determine the effect of giving the concentration of moringa leaves organic liquid fertilizer (OLF) on the growth and yield quality of land kale plants. This study used a completely randomized design (CRD) with 6 treatments and repeated 4 times to obtain 24 experimental units. For the experimental treatment the OLF concentrations of Moringa leaves used were as follows: 0 ml/l water, 50 ml/l water, 100 ml/l water, 150 ml/l water, 200 ml/l water and 250 ml/l water. Parameters observed in this study were leaf chlorophyll content, plant height (7, 14, 21 and 28 dap), number of leaves (7, 14, 21 and 28 dap), leaf area, root length, shoot fresh weight, root fresh weight, shoot dry weight, root dry weight and root shoot ratio. The results of this study indicate that the application of OLF concentrations of moringa leaves to land kale plants had a very significant effect on the parameters of leaf chlorophyll content, plant height 21 and 28 dap, number of leaves 28 dap, leaf area and shoot dry weight and had a significant effect on parameters of shoot fresh weight and root dry weight. Concentration of 250 ml/l is the best concentration of moringa leaves OLF which gives the best growth and yield quality of land kale plants. Leaf chlorophyll content increased 57,1%, plant height at 28 dap 61.63%, number of leaves at 28 days after 66.89%, leaf area 207,78% shoot fresh weight 216.43% compared to control.

Perbandingan Berat Molekul Protein Total Tanaman Selada (Lactuca sativa L.) Hasil Plant Factory dan Ditanam di Tanah Menggunakan SDS-PAGE Rizki, Muhamad Farrel; Wirawan, I Gede Putu; Suada, I Ketut
Agrotrop : Journal on Agriculture Science Vol 14 No 2 (2024)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2024.v14.i02.p13

Comparison of Total Protein Molecular Weight of Lettuce (Lactuca Sativa L.) Plant Factory and Planted in the Ground Using SDS-PAGE. Lettuce (Lactuca sativa L.) is a plant that contains nutrients and protein that are good for human needs. Lettuce is often found in Indonesian agriculture because lettuce has growing conditions that are very suitable for the Indonesian climate. The purpose of this study was to determine the comparison of protein profiles of lettuce plants grown on the ground with those grown using the hydroponic plant factory system. This research was conducted from May to June 2023 at the Laboratory of PT Genetika Science Indonesia, Tangerang City. This research stage consists of sampling, protein extraction, electrophoresis, and data analysis. Comparisons were made by comparing the two sample data that had been carried out by electrophoresis by looking at the molecular weights of each sample. Plants grown in the soil had higher molecular weights than those grown in the plant factory and each had 12 different proteins. Both samples produced two other same protein bands of 69.65 kDa and 11.97 kDa.

Inventarisasi Kerentanan Longsor dengan Citra Landsat 8 OLI TIRS di Lereng Timur Gunung Agung Jananuraga, Petrus Raki; Suyarto, R.; Kusmiyarti, Tati Budi
Agrotrop : Journal on Agriculture Science Vol 14 No 2 (2024)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2024.v14.i02.p04

Landslide Vulnerability Inventory with Landsat 8 OLI TIRS Imagery on the Eastern Slope of Mount Agung. Landslides are one of the natural disasters that often occur in Indonesia and cause loss of life, property, and damage to facilities and infrastructure. Landslide vulnerability on the eastern slope of Mount Agung is categorized as medium to high, making the area very vulnerable to landslides, therefore an inventory of landslide vulnerability in the area is needed. This study aims to analyze the results of land cover interpretation using BSI vegetation index approach and supervised classification on the eastern slope of Mount Agung, Bali, compare the results of land cover accuracy test of BSI vegetation index approach interpretation and supervised classification, and analyze landslide vulnerability from 2013 to 2022. The method used in this research is qualitative by utilizing data taken from Landsat 8 OLI TIRS images recorded from 2013 to 2022 in the form of Blue band, Red band, Near Infrared band, and Shortwave Infrared 2 band. Land cover classification uses Bare Soil Index vegetation index analysis and supervised classification. The results showed that the comparison of the area of non-vegetated land distribution for each year of the Bare Soil Index analysis results was greater than the results of the analysis using supervised classification. The highest non-vegetated land area based on the results of the Bare Soil Index was in 2019 with an area of 11,469.60 ha, while the supervised classification occurred in 2017 with an area of 6,182.03 ha. The accuracy test results show that the BSI method is more accurate (82.86%) compared to the supervised classification method (62.86%). Non-vegetated land (vacant land) based on BSI that is included in the Movement Vulnerability Zone is an area vulnerable to landslides, its distribution changes due to various events that occur in the area such as forest fires, landslides, land use change, and others. The highest vulnerability area was in 2019 amounting to 1,779.03 ha while the lowest vulnerability area was in 2016 amounting to 1028.94 ha.

Pengaruh Penambahan POC Ampas Teh terhadap Pertumbuhan dan Hasil tanaman pakcoy (Brassica rapa L.) Secara Hidroponik Sistem Sumbu Butar, Adril Persada Butar; Pradnyawathi, Ni Luh Made; Wijana, Gede
Agrotrop : Journal on Agriculture Science Vol 14 No 2 (2024)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2024.v14.i02.p09

The Effect of Additioning Tea Waste LOF on Growth and Products of Pakcoy (Brassica rapa L.) Plants by Wick System Hydroponic. Pakcoy (Brassica rapa L.) is one of the vegetables that can be cultivated using a hydroponic system. The wick hydroponic system is one of the hydroponic techniques used in vegetable cultivation, involving the use of standing water in the installation and passive flow circulation. The nutrients commonly used in hydroponic cultivation are the AB Mix nutrient solution. However, the use of liquid organic fertilizer (LOF) in hydroponic vegetable cultivation is an important consideration to reduce the use of inorganic fertilizers. The research objective is to determine the growth response of pakcoy cultivation with the addition of tea waste LOF, which contributes to the growth and yield of pakcoy plants. This study utilized a Completely Randomized Design (CRD) with six levels, namely 0 ml/L, 2 ml/L, 4 ml/L, 6 ml/L, 8 ml/L, and 10 ml/L, each with four replications. The research was conducted in the Experimental Greenhouse and Agronomy and Horticulture Laboratory, Faculty of Agriculture Udayana University from February to May 2023. The treatment of 10 ml/L was found to be the best concentration for the addition of tea waste LOF in promoting the growth and yield of pakcoy plants in the wick hydroponic system. The results of the regression analysis for fresh canopy weight and oven dry canopy weight have not revealed an optimal concentration. This is due to the presence of a positive linear relationship with the concentration of tea waste LOF, indicating that both weights will increase with an increase in concentration.

Respon Pertumbuhan Stek Durian (Durio zibethinus Murr.) terhadap Penambahan ZPT dan POC Kulit Pisang Kepok pada Fase Pembibitan Nugraha, Faiz; Susiyanti, Susiyanti; Rumbiak, Julio Eiffelt; Sulistyorini, Endang
Agrotrop : Journal on Agriculture Science Vol 14 No 2 (2024)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2024.v14.i02.p01

Growth Response of Durian (Durio zibethinus Murr.) Cuttings to the Addition of ZPT and POC Banana Kepok Peel in the Seeding Phase. The production of durian fruit in Indonesia fluctuates annually, yet there continues to be a high demand for durian. This research explores the use of Plant Growth Regulators (ZPT) and Liquid Organic Fertilizers (POC) to enhance durian propagation efficiency. The aim is to understand the effects of ZPT and POC on durian plant response, grafting models, and bud break time, aiming to produce high-quality durian seedlings. The experimental research method employed a Randomized Complete Block Design (RCBD) with cluster randomization. The study consisted of 2 factors with 3 replications each: ZPT Growtone (G1: 5 mg/l; G2: 10 mg/l; G3: 15 mg/l) and POC Banana Peel (P1: 100 ml/polybag; P2: 200 ml/polybag; P3: 300 ml/polybag), resulting in 27 experimental units. The results indicate that ZPT treatment influenced the percentage of successful grafting but did not affect bud break days, length of scion, leaf emergence, or rootstock length. Meanwhile, the POC banana peel treatment affected plant height and scion length but did not influence grafting success rate, bud break, leaf emergence, or rootstock length. There was no interaction observed between the effects of ZPT and POC banana peel on each parameter.

Pengaruh Pemberian GA3 dan Ekstrak Paku Sayur (Diplazium esculentum) terhadap Kualitas Hasil Buah Anggur (Vitis vinifera L.) Varietas Kediri Kuning Purba, Reza Stefany; Astawa, I Nyoman Gede; Dwiyani, Rindang
Agrotrop : Journal on Agriculture Science Vol 14 No 2 (2024)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/AJoAS.2024.v14.i02.p14

Effect of GA3 and Vegetable Spike Extract (Diplazium esculentum) on the Yield Quality of Grape (Vitis vinifera L.) Kediri Kuning Variety. This study aims to determine the effect of vegetable fern extract solution on the quality of grapes of Kediri Kuning variety and the concentration that can improve the quality of grapes. This research uses RAK (Randomized Group Design) with the treatment of vegetable fern extract consisting of 5 levels with 5 replicates, namely P0 = Control, PG = GA3 500 ppm, PS25 = 25%, PS50 = 50%, PS75 = 75%. The results showed that the treatment of vegetable fern extract solution gave an influence on the variables of titratable acid content, fruit bunch length, number of seeds per fruit, vitamin c content, antioxidant properties content, and seed weight per fruit, tannin content. Dipping the vegetable fern extract solution in the stadia before flower blossom can improve the quality of Kediri Kuning grapes, seen in titratable acid content, fruit bunch length, number of seeds per fruit, weight of seeds per fruit, vitamin C content, antioxidant properties, and tannin content. The concentration of 50% vegetable spike extract is able to provide the best results and quality to improve the quality of Kediri Kuning grapes.

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Journal Mail Official
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Kota denpasar,

Bali

INDONESIA