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Agrotrop : Journal on Agriculture Science
Published by Universitas Udayana
ISSN : 2088155X     EISSN : 26544008     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Journal AGROTROP
Arjuna Subject : -
Articles 15 Documents
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Search results for , issue "Vol 10 No 1 (2020)" : 15 Documents clear
Editorial Agrotrop Vol. 10, No. 1, Mei 2020 Jurnal AGROTROP
Agrotrop : Journal on Agriculture Science Vol 10 No 1 (2020)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (25.687 KB)

Abstract

Editorial Agrotrop Vol. 10, No. 1, Mei 2020
Kultur Jaringan Jeruk Keprok Tejakula (Citrus reticulata var. Tejakula) Menggunakan Tunas Muda dan Biji Serta Deteksi CVPD dengan Teknik Polymerase Chain Reaction (PCR) VLORA VERONICA SIPANGKAR; I NYOMAN WIJAYA; MADE SRITAMIN
Agrotrop : Journal on Agriculture Science Vol 10 No 1 (2020)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (353.488 KB) | DOI: 10.24843/AJoAS.2020.v10.i01.p06

Abstract

Tissue Culture Citrus (Citrus reticulata var. Tejakula) using Shoot and Seed and the Detection of CVPD with Polymerase Chain Reaction (PCR). The sample was taken in Pecatu Village, Kuta Selatan District, Badung Regency and continued with in vitro culture and PCR analysis at UPT. Genetic Resource and Molecular Biology Laboratory, was start from December of 2018 until May of 2019. The purpose of this research was to create a CVPD free Citrus reticulata var. Tejakula seedling from tissue culture. The sample was chosen based on visual characteristic. Two samples were taken from citrus plant that show CVPD symptoms and citrus plant that did not show CVPD symptoms. The seed and shoot were cultured using MS media for 12 week after planting (WAP). From this research showed that both explant from the shoot and seed were able to grow well. The explant from citrus sample that showed CVPD symptoms was infected by Liberibacter asiaticus and the explants from citrus that did not show CVPD symptoms was not invected by Liberibacter asiaticus, according to PCR analysis.
Cover Agrotrop Vol. 10, No. 1, Mei 2020 Jurnal AGROTROP
Agrotrop : Journal on Agriculture Science Vol 10 No 1 (2020)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (397.11 KB)

Abstract

Cover Agrotrop Vol. 10, No. 1, Mei 2020
Potensi Alga Merah dan Alga Hijau untuk Menghambat Pertumbuhan Bakteri Eschericia coli KETUT SRIE MARHAENI JULYASIH; NI PUTU RISTIATI; IDA BAGUS PUTU ARNYANA
Agrotrop : Journal on Agriculture Science Vol 10 No 1 (2020)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (130.65 KB) | DOI: 10.24843/AJoAS.2020.v10.i01.p02

Abstract

Potential of Red Algae and Green Algae to Inhibit Escherichia coli Bacteria Growth. The use of synthetic chemicals as a control for the growth of E. coli bacteria that causes of diarrhea children can cause adverse effects on health, so it needs natural control ingredients that do not cause impacts on human health. One natural controller to inhibit bacterial growth is by utilizing natural sources, including seaweed. The purpose of this study was to examine the potential of seaweed as an anti-bacterial agent of E. coli. The research used seaweed extract of Eucheuma spinosum, Euchuema cottonii, Gracilaria spp., and Caulerpa spp. The test parameters observed were the inhibition zone (mm) of each seaweed extract treatment using a ruler and measured the inhibition zone distance. The results showed that E.cottonii seaweed extract had the highest inhibitory ability with an inhibition zone diameter of 11.1 mm, including the moderately sensitive category, then Caulerpa spp. with a inhibition zone diameter of 10.0 mm, Gracilaria spp has the ability to inhibit E.coli bacteria with a inhibition zone diameter of 6.9 mm, including the insensitive category, and the lowest in seaweed E. spinosum with a inhibition zone diameter of 4.2 mm. including the insensitive category.
Kelimpahan Populasi dan Tingkat Parasitisasi Parasitoid Indigenus terhadap Hama Invasif Liriomyza trifolii (Burgess) (Diptera: Agromyzidae) pada Tanaman Asteraceae di Bali I WAYAN SANDIKA YASA; I WAYAN SUPARTHA; I WAYAN SUSILA
Agrotrop : Journal on Agriculture Science Vol 10 No 1 (2020)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (235.53 KB) | DOI: 10.24843/AJoAS.2020.v10.i01.p07

Abstract

Population Abundance and Parasitization Level of Indigenous Parasites to Invasive Liriomyza trifolii (Burgess) (Diptera: Agromyzidae) on Asteraceae Plants in Bali. This study was aimed to determine the population abundance and parasitization level of indigenous parasitoid associated with Liriomyza trifolii (Burgess) in Asteraceae plants in Bali. The study was conducted from January to March 2019 by survey method on the type of parasitoid, abundance and parasitisation level in Asteraceae plants which included to Chrysanthemum, Gerbera jamesonii and Helianthus annuus, which are spread in several regencies in Bali such as Buleleng (1200 m asl), Bangli (900-1000 m asl) and Denpasar (40 m asl). Sampling was done purposively on the leaves of plants attacked by Liriomyza sp. and then maintained at the Laboratory until the parasitoid adults appeared. Afterward, morphologically was identified the type of parasitoid that appears. The results showed that there were three types of indigenous parasitoid associated with L. trifolii namely Hemiptarsenus varicornis, Neochrysocharis okazakii, and Opiusdissitus. The most dominant parasitoid of the three types of H. varicornis parasitoid with an abundance of 78.57% and parasitization rate of 53.23% was found in Chrysanthemum plants.

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