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Agrotrop : Journal on Agriculture Science

agrotrop
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Published by Universitas Udayana

ISSN : 2088155X EISSN : 26544008 DOI : -

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

Journal AGROTROP

Arjuna Subject : -

Articles 400 Documents

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Cover Agrotrop Vol. 8, No. 2, November 2018 Jurnal AGROTROP
Agrotrop : Journal on Agriculture Science Vol 8 No 2 (2018)
Publisher : Fakultas Pertanian Universitas Udayana

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Cover Agrotrop Vol. 8, No. 2, November 2018

Status Penyakit Layu pada Tanaman Cabai Rawit (Capsicum Frutescens L.) di Banjarangkan, Klungkung I MADE SUDARMA; NI MADE PUSPAWATI; NI WAYAN SUNITI; I GUSTI NGURAH BAGUS
Agrotrop : Journal on Agriculture Science Vol 4 No 2 (2014)
Publisher : Fakultas Pertanian Universitas Udayana

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Status of wilt disease in pepper (Capsicum frutescens L.) at Banjarangkan, Klungkung. Wilt disease in pepper , has led to a total yield loss in Banjarangkan, Klungkung regency. Until now the disease was still a threat to farmers in the area pepper. The purpose of research to study the disease includes symptoms, causes disease, the percentage of the disease and the rate of infection (r). Research using existing observations of the disease in three plots of local farmers. Each plot the observed number of diseased plants and entire plants. Samples of diseased plants put in a plastic bag, then placed in an ice box , to be observed macroscopically in the laboratory. The study was conducted in two places, namely surveys Banjarangkan disease in Klungkung , and isolation of the pathogen as well as pathogenicity test carried out in the Laboratory of Plant Pathology, Faculty of Agriculture, Udayana University, Jl. PB Sudirman Denpasar-Bali. The research was conducted from June to November 2013. The results showed that the pathogen that causes wilt disease in pepper at Banjarangkan, Klungkung regency was the fungus Fusarium oxysporum f.sp. capsici, with the disease incidence was 76.67%. Fusarium wilt disease epidemic in pepper indicated by the rate of infection, first gained 0.44 per unit per day, then decreases with time, 0.23, 0.12 and 0.11 per unit per day respectively. The rate of infection ranged from 0.11 to 0.44 per unit per day, this means that the moderate criteria.

Pengaruh Perbedaan Waktu Tanam Tetua Padi Hibrida dan Aplikasi Zat Pengatur Tumbuh terhadap Hasil Benih F1 HIPA 8 SRI WAHYUNI; TITA RUSTIATI; YUNI WIDYASTUTI
Agrotrop : Journal on Agriculture Science Vol 3 No 2 (2013)
Publisher : Fakultas Pertanian Universitas Udayana

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The Effects of Planting Time of TheParental Hybrid Rice and Plant Growth RegulatorApplication on Seed Yield of F1 HIPA 8.Research the effect of planting time of parental lines andapplication of plant growth regulators (GA3and glysine) on seed yield of F1 hybrid rice had beenconducted at The Indonesian Centre of Rice Research on 2010. The objective of the study was to findout combination of plating time and application of plant growth regualtors to get high seed yield ofhybrid rice. Seeds of parental lines Hipa 8 were planting in row ratio 2R:8A at Cilandak, Indramayu onthe dry season of 2010. Treatments to improve seed yield of hybrid rice consisted of (a) planting timeof parental lines (CMS and R), and (b) application of plant growth regualators (GA3 CG1 (commercialgrade) 60 ppm, GA3 CG2 94 ppm, Glysine 40 ppm and control (untreated). Plant growth regualatorwere applied at three times i.e. heading time, 5% plant flowering and 20% plant flowering. Variableevaluated consisted of: plant growth, yield component and seed yield. Result of the exeperiment showedthat tiller number per hill and plant height at vegetatif stage were not affected by treatments. TreatmentA1B2 and A2B2 significantly improved panicle exercition, plant height of restorer and also seed yield.Rice plant treated with A1B2 (planting times of restorer were 12, 15, and 18 days after CMS andapllication GA3 CG1 60 ppm) showed the highest seed yield, followed by A2B2 (planting times ofrestorer were 13, 17 and 21 days after CMS and application of GA3 CG1 60 ppm).

Asosiasi Lalat Buah (Bactrocera spp.) (Diptera : Tephritidae) dan Parasitoidnya pada Tanaman Jambu Biji Kristal (Psidium guajava L.) yang Dibudidayakan di Bali I WAYAN DEDI ADNYANA; NI NENGAH DARMIATI; DWI WIDANINGSIH
Agrotrop : Journal on Agriculture Science Vol 9 No 2 (2019)
Publisher : Fakultas Pertanian Universitas Udayana

Association of Fruit Flies (Bactrocera spp.) (Diptera: Tephritidae) and Their Parasitoid on Guava (Psidium guajava L.) Cultivated in Bali. The study on the association of fruit flies (Bactrocera spp.) (Diptera: Tephritidae) and their parasitoid on guava (Psidium guajava L.) cultivated in Bali was conduted in order to know the abundance, attacks percentage and the species of parasitoid associated on guava, cultivated in Bali. The sampling was done intentionally by taking attacked fruit in Musi Village, Buleleng Regency; Pelaga Village, Badung Regency; and Tiga Village, Bangli Regency. The results showed that 3 species of fruit flies were found, namely B. carambolae, B. papayae and B. albistrigata. The percentage and number of adult insect emergence in Musi Village were B. papayae (50.87% ; 2772 imago), B. carambolae (35.18% ; 1803 imago) and B. albistrigata (13.94% ; 741 imago). In Pelaga Village B. carambolae (61.31% ; 2864 imago) dominates and B. papayae only 38.69% and 1801 imago. B. carambolae is also found dominant in Tiga Village (59.08% ; 2303 imago) and B. papayae only 40.92% and 1603 imago. Percentage of damage to guava is 24.27% on average. There are three species of parasitoids found that are associated with fruit flies on guava in Bali, namely Fopius arisanus, Diachasmimorpha sp. and Opius sp. The average parasitic rate is 6.76%. The highest parasitic rate is in Musi Village, Buleleng while the lowest is in Tiga Village, Bangli.

Kelimpahan Spesies Lalat Buah (Diptera: Tephritidae) dan Parasitoidnya yang Berasosiasi pada Tanaman Belimbing (Averrhoa carambola L.) di Kabupaten Gianyar I NYOMAN WIDNYANA PUTRA; I WAYAN SUSILA; I GUSTI NGURAH BAGUS
Agrotrop : Journal on Agriculture Science Vol 9 No 1 (2019)
Publisher : Fakultas Pertanian Universitas Udayana

Abundance of Fruit Fly Species (Diptera: Tephritidae) and Its Parasitoid Associated on Star Fruit Plants (Averrhoa carambola L.) in Gianyar regency. This study was conducted to determine the abundance of fruit flies, and itsspecies of parasitoid on starfruit plants in Gianyar regency. Samples of star fruit attacked by fruit fly was taken purposively. The purpose of this study was to know the abundance, composition, and percentage of damage, kinds of parasitoid and parasitization rate. The results showed that was found 2 kinds of fruit flies, that are Bactrocera. carambolae and B. papayae. B. carambolae was dominant in all districts in Gianyar Regency compare themB. papayae. In Sukawati district was 64%, (492 adults), Blahbatuh district was 59.817% (460 adults), Ubud district was 61.528% (491 adults), Payangan district was 55.476% (390 adults), Tampaksiring district was 55.001% (390 adults), respectively. Meanwhile, B. papayae in Sukawati district was 35.348%, (269 adults), Blahbatuh district was 40.182% (309 adults), Ubud district was 38.471% (307 adults), Payangan district was 44.523% (313 adults) and Tampaksiring district was 40.998% (271 adults), respectively. The average of damage percentage was 86.33%. There are 3 kinds of parasitoids associated on fruit flies in starfruit plants in Gianyar regency. The parasitoid are Diachasmimorpha sp, Opius sp. and Fopius arisanus. The average parasitization rate was 11.12%, with the highest parasitization rate in Ubud district was 12.40% and the lowest in Tampaksiring districtwas 9.58%.

Pertumbuhan dan Hasil Berbagai Varietas Kacang Hijau (Vigna radiata (L.) Wilczek) pada Kadar Air yang Berbeda YUDHANI WIDHYA HARTIWI; GEDE WIJANA; RINDANG DWIYANI
Agrotrop : Journal on Agriculture Science Vol 7 No 2 (2017)
Publisher : Fakultas Pertanian Universitas Udayana

Growth and Yield of Various Mung Bean Varieties (Vigna radiata (L.) Wickzek in Different Water Content. Mung bean (Vigna radiata (L.) Wilczek) is a commodity crop beans are commonly grown on dryland and high protein. Problems encountered in cultivation of mung bean in dry land is low results, one of them the limited seed of drought stress tolerant therefore needs to be done against drought stress research production of mung beans. Objective to know the growth and the results of various varieties of mung beans at different water levels. This experiment using Random Design complete with two factors. The treatment consists of the water content of the soil with a capacity of 100% airy, 75%, 50%, 25% and varieties of Fore Belu, Kutilang, Vima-1, and Sriti. The results of the experiment demonstrated the interaction between moisture content and varieties against the number of pods per plant, number of seeds per plant dry weight, dry seeds per plant, seeds of oven dry weight per plant dry weight and the oven 100 seeds. Moisture content of the soil with a roomy capacity (100%) gives the results of dry weight per plant seeds under the highest (17.2 g) compared to other treatments. Varieties that produce the highest growth found in the varieties of Sriti. Moisture content of the soil with a capacity of 100% airy gives the best results on the plant mung beans. Most varieties are tolerant of most soil water content lower than the capacity of the airy is Sriti varieties.

Identifikasi Karakter Morfologi dan Agronomi Tanaman Gonda (Sphenoclea zeylanica Gaertn) di Kabupaten Jembrana, Bali I WAYAN ADI PERMADI; I GUSTI ALIT GUNADI; I MADE SUKEWIJAYA
Agrotrop : Journal on Agriculture Science Vol 5 No 1 (2015)
Publisher : Fakultas Pertanian Universitas Udayana

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The Identification of Morphological and Agronomic Characters of Gonda (Sphenocleazeylanica Gaertn) in Jembrana - Bali. Gonda (a local name) is a vegetable plant that has high nutritional value, however, limited information about this plant and related matters incultivation provide constraints in its development. Research concerning inventaritation and identification is required to support the development. The aim of the research was to find out information about the cultivation and characters of gonda. This research was conducted in October 2014 - March 2015 in Jembrana - Bali. Inventaritation was done through observation including deployment, history and cultivation method. While identification was done by identify morphological characters (vegetative and generative organs) and agronomic characters (height of plant and number of leaves). The results showed thats the gonda spread across rice fields at an altitude of 6 - 90 m AMSL. Gonda has been intensively cultivated since 1950 by farmers through seedling and planting. Various morphological and agronomic characters were identified among gonda planted by farmer in Jembrana, Bali. Based on the type of the branch, morphologically, gonda was grouped in to monopodial and sympodial. While for agronomic characters, a wide range of size and the number of organs were found among gonda cultivars planted by farmers in Jembrana.

Pengujian Rekomendasi Pemupukan Spesifik Lokasi dan Sistem Tanam terhadap Hasil Padi Sawah di Desa Temega, Kecamatan Abang, Karangasem I NYOMAN PUJA; I WAYAN DANA ATMAJA; MADE SRI SUMARNIASIH
Agrotrop : Journal on Agriculture Science Vol 9 No 1 (2019)
Publisher : Fakultas Pertanian Universitas Udayana

Evaluation of Specific Location Fertilizer Recommendations and Plant System on Rice Yield Temega Village, Abang District, Karangasem. This study aims to determine the response of specific location fertilizer recommendations and planting system on rice yields in Temega Village, Abang District, Karangasem Regency. The method was used Factorial Randomized Block Design (RBD). The treatment tried consisted of two factors. The first factor was fertilization recommendations (R): R1 = location specific recommendation (250 kg Urea/ha, 100 SP36/ha and 50 kg KCl/ha); R2 = Location specific recommendation + Compost (230 kg Urea/ha, 100 SP36/ha, 50 kg KCl/ha + 5 t compost/ha), R3 = Farmer method (300 kg Urea/ha, 125 SP36/ha and 75 kg KCl/ha). The second factor was planting system (TL) : T = Tegel (20 cm x 20 cm) and L = Jajar Legowo 2 : 1. Combination of treatments into 6 treatments and each treatment was replicated 4 times so that there were 24 plots of research. The results showed that location specific fertilizer recommendations resulted in oven dry grain weight m-2 of 0.84 kg compare to that of farmers (0.85 kg). The application of location specific fertilizer recommendations can save as much as 50 kg Urea/ha, 25 kg SP36/ha and 25 kg KCl/ha. Jajar Legowo planting system can produce grain contain m-2 of 1.14 kg or an increase of 78.13% compared to tegel planting system (0.64 kg).

Pengaruh Penyiraman dan Dosis Pemupukan terhadap Pertumbuhan Kangkung (Ipomoea reptans) pada Komposisi Media Tanam Tanah+Pasir AHMAD RIFQI FAUZI
Agrotrop : Journal on Agriculture Science Vol 4 No 2 (2014)
Publisher : Fakultas Pertanian Universitas Udayana

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Effect of Water Requirment and Fertilization on Growth of Kangkong (Ipomoea reptans) in media composition soil+sand. Kangkong plant is a tropical vegetable widely cultivated in Indonesia. Village has a wide adaptability to climate and soil in the tropics. This experiment aimed to see the effect of watering and fertilization on the growth of kangkong plants. Experiments was carried out in the garden experiment Cikabayan, IPB on March-April 2011. This experiment was arranged with randomized complete design which consisted of two factors are 3 levels of watering (watering every 1 day (A1), every 2 days (A2), and every 3 days (A3)) and fertilization with 5 doses (100% dose recommendation (P1), 75% (P2 ), 50% (P3), 25% (P4), and 0 (P5)). Planting medium was a mixture of soil : sand (1:1). The results of this study indicate that the frequency of watering significant effect on plant height and weight of wet kangkong plants. Watering once every 2 days to produce the highest plant height (41.41 cm). While fertilization had no effect on all observed variables. Conclusion of the experiment is watering is one of important factor for plant production which significant effect on plant growth.

Analisis Vegetasi Sebagai Dasar Pengembangan Agroforestri di DAS Mikro Desa Tukad Sumaga, Kecamatan Gerokgak, Kabupaten Buleleng I WAYAN GEDE WIRYANTARA; GEDE WIJANA; I WAYAN SUARNA
Agrotrop : Journal on Agriculture Science Vol 4 No 1 (2014)
Publisher : Fakultas Pertanian Universitas Udayana

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Vegetations Analysis As A Basic ForAgroforestry Development In Micro Watershed TukadSumaga Village, Gerokgak District, Buleleng Regency.Forest changed to agricultural hasconsciousness can effected many problems such as soil degradations, erosion, flora and fauna extinctions,floods, dryness, and even global environmental change. Agroforestry is one of solutions to protect thebiodiversity. The research was held at Micro Watershed Tukad Sumaga Village, Gerokgak District,Buleleng Regency which consist of intercropping agroforestry system, alley cropping agroforestry system,and the trees for soil conservations agroforestry system. The purpose of this research is to discoverbiodiversity and composition of vegetations species in each agroforestry system and also to find out theagroforestry management level at Micro Watershed Tukad Sumaga Village. The research result showsthat the biggest Important Value Index (INP) in intercropping agroforestry system is in trees level bymango at 59.46%, scrubs and sapling level by teak at 80.13%, seddling level by gosh bean at 49.57%.The biggest INP in Alley Cropping Agroforestry System is in trees level by cashew at 150.33%, scrubsand saplings level by lamtoro at 95.26%, seedling level by legetan at 84,93%. The biggest INP in TheTrees for Soil Conservations Agroforestry System is in trees level by tamarind at 165,35%, %, scrubsand saplings level by india apple at 114.09%, seedling level by legetan at 83.98%. The calculations ofspecies biodiversity which as species variety, prevalent index, and domination index can separated themanagement level in each agroforestry system. The best management is Intercropping AgroforestrySystem. The second is The Trees for Soil Conservations Agroforestry System. The last is Alley CroppingAgroforestry System. The development of Intercropping Agroforestry System is needed because thissystem is the best. Monitoring, evaluations, and technical learning about forest and agricultural plantationare needed for increasing the social benefit dan preventing the deforestations.

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