cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota denpasar,
Bali
INDONESIA
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 13 Documents
 1   2 
Search results for , issue "Vol 2 No 2 (2012)" : 13 Documents clear
Penggunaan Streptomyces sp. Sebagai Biokontrol Penyakit Layu Pada Tanaman Cabai Merah (Capsicum annuum L.) yang Disebabkan Oleh Fusarium oxysporum f.sp. capsici ANINDA OKTAVIA RAHARINI; RETNO KAWURI; KHAMDAN KHALIMI
Agrotrop : Journal on Agriculture Science Vol 2 No 2 (2012)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (450.962 KB)

Abstract

A research has been conducted to find out Streptomyces bacteria at Bukit Jimbaran, to inhibitionpotency of Streptomyces sp. to pathogenic fungi Fusarium oxysporum f.sp. capsici, and to find outantifungal activity of Streptomyces filtrate to F.oxysporum f.sp. capsici in chili (Capsicum annuumL.) plants. Streptomyces sp. isolation was done by platting method with selective media YMA (ISP4).Identification of Streptomyces sp. used Bergey’s book entitled Manual Determinative Bacteriology.Test inhibition against F.oxysporum f.sp. capsici and in vivo test used by dying the roots of the chili(C.annuum L.) plant with F.oxysporum f.sp. capsici and after 30 seconds the roots were dying withStreptomyces sp. culture, furthermore sterile soil on polybag watered by F.oxysporum f.sp. capsicispore and Streptomyces sp. culture at the same time. The result found five isolates Streptomyces sp.with different morphological. The antagonis test showed Streptomyces sp. 4 had ability (82%) againstFusarium, Streptomyces sp.1 (72%), Streptomyces sp.2 (64%), Streptomyces sp.3 (76%), andStreptomyces sp. 5 (32%). All Streptomyces suppressed the growth of Fusarium on chili plants inglass house (p<0,05). Streptomyces sp.4 suppressed Fusarium wilt disease in chili from 80% in controlto 8%.
Struktur Komunitas Hama Pemakan Daun Kubis dan Investigasi Musuh Alaminya KETUT AYU YULIADHI; PUTU SUDIARTA
Agrotrop : Journal on Agriculture Science Vol 2 No 2 (2012)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (47.866 KB)

Abstract

The data concerning the community of pests that eat and destroy cabbage leaves in Bali has notbeen available yet. However, it is required for the pest control purposes. The aim of the research wasto investigate the structure of pest community that eat and destroy cabbage leaves and to find out theirnatural enemies for controlling the pests. Samples of the pest were collected from the cabbage plantsthat were treated with insecticide and without insecticide (control). The results show that the phytophageinsects that found on both treatments of growing cabbages were Plutella xylostella, Crocidolomiapavonana, Spodoptera litura, Helicoverpa armigera, Chrysodiexis orichalcea, and Aphis brassicae.Natural enemies that found on that area were parasitoid larva Plutella Diadegma semiclausum andpredator Crocidolomia pavonana, Sycanus dichotomus pdf (secured).
Pengaruh Aplikasi Formula Pantoea agglomerans Terhadap Aktivitas Antioksidan dan Kandungan Klorofil Daun Tanaman Strowberi TRISNA AGUNG PHABIOLA; KHAMDAN KHALIMI
Agrotrop : Journal on Agriculture Science Vol 2 No 2 (2012)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (148.668 KB)

Abstract

The objectives of this experiment were conducted to evaluate the effectiveness of Pantoeaagglomerans formulations to increase antioxidant activities and chlorophyll content of strawberry plants.P. agglomerans was formulated in the forms of gel and powder. Measurement of peroxidase activitycarried out 7 days after application of P. agglomerans formulations on strawberry plants. The mannerin which the Cohen prosedure suggested by Simon and Rose (1970) and has been modified. Totalchlorophyll content (SPAD unit) was determined with a chlorophyll-meter SPAD-502. Some growthparameters were observed such as plant height, number of leaves, and leaf area. Results of this studyshowed that application of P. agglomerans formulations could increase the peroxidase activity. Peroxidaseactivity on treated plants increased by 47.17% to 50.16% in comparison with un-treated plants. Totalchlorophyll content on treated plants increased by 23.81% to 28.22% in comparison with un-treatedplants. These results suggested that application of P. agglomerans formulations could increase the totalchlorophyll content and antioxidant activity of strawberry plants.
Streptomyces sp. Sebagai Biofungisida Patogen Fusarium oxysporum (Schlecht.) f.sp. lycopersici (Sacc.) Snyd. et Hans. Penyebab Penyakit Layu Pada Tanaman Tomat (Solanum lycopersicum L.) NURI MANDAN SARI; RETNO KAWURI; KHAMDAN KHALIMI
Agrotrop : Journal on Agriculture Science Vol 2 No 2 (2012)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (576.794 KB)

Abstract

A research was conducted to isolate Streptomyces sp. of soil Udayana University campus in theBukit-Jimbaran, to obtain the most effective Streptomyces sp. which is effective in inhibit the growth ofFusarium oxysporum f.sp. lycopersici, and to test response of tomato plants with Streptomyces sp.culture against Fusarium wilt desease. Implementation phases of the research consisted of isolation andidentification of Streptomyces sp, test the inhibition against F. oxysporum f.sp. lycopersici, and in vivotest used by dyeing the roots of the tomato plant (Solanum lycopersicum) with Fusarium spores andafter 30 seconds the roots were dyeing Streptomyces culture. Furthermore, sterile soil in polybagwatered by Fusarium spores and Streptomyces culture at the same time. Based on morphologicalcharacteristic it found five isolates of Streptomyces sp.. The antagonist test showed Streptomyces sp.1 had ability (75%) against Fusarium, Streptomyces sp 2 (68,3%), Streptomyces sp. 3 (71,6%),Streptomyces sp. 4 (63,3%), and Streptomyces sp. 5 (21,6%). All Streptomyces suppressed thegrowth of Fusarium on tomato plants in glass house (p<0,05). Streptomyces sp.3 suppressed Fusariumwilt disease in tomato from 88% in control to 20%.
Pengkajian Mikroba Probiotik Lokal dan Pupuk NPK Kujang Terhadap Hasil Padi Varietas Inpari 13 KARSIDI PERMADI; BAMBANG SUNANDAR; NENENG RATNA PURNAMASARI
Agrotrop : Journal on Agriculture Science Vol 2 No 2 (2012)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (45.159 KB)

Abstract

The increase of rice production by using the approach of integrated crop and resource management(ICM) besides high yielding varieties (HYV), inorganic compound fertilizer which followed the returnof insitu rice straw instead of compost or manure. However, this in situ rice straw should be treated bylocal probiotic microbes so the straw becomes decayed and fragile that facilitates the land processing.This study aimed to determine the effect of the addition of Kujang NPK fertilizer with local probioticmicrobes on rice yield of Inpari 13 variety in irrigated land. This study uses a separate plot design with5 replications. The main plot is the gift of local probiotic microbes (Agri Super and Agri Simba), and thesubplot is the addition of Kujang NPK fertilizer (200, 300, and 400 kg/ha). The results of this studyshow that there are no interaction influence occurs between the addition of Kujang NPK fertilizer withthe administering local probiotic microbes on plant height at harvest, yield components and dried grainyield. The highest dried grain yield by administering of Agri Super is 8.59 t ha-1. The addition of KujangNPK fertilizer at dose 300 kg ha-1 gave the highest grain yield as much as at dose 8.24 t ha-1, and thelowest yield achieved at doses of 200 kg ha-1 of Kujang NPK approximately 7.55 t ha-1.
Respon Pertumbuhan Bibit Anggrek Dendrobium sp. pada Saat Aklimatisasi terhadap Beragam Frekuensi Pemberian Pupuk Daun RINDANG DWIYANI
Agrotrop : Journal on Agriculture Science Vol 2 No 2 (2012)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (41.708 KB)

Abstract

The aim of the experiment was to investigate the appropriate frequency of foliar fertilizer applicationof Hyponex and Gandasil D for the growth of seedlings of Dendrobium sp. at acclimatization stage.Various frequency of application for both foliar fertilizers were trialed, i.e. once in 5 days, once in 10days, once in 15 days and control (without fertilizer). The results showed that the most appropriatefrequency for the application of Hyponex and Gandasil D for seedlings of Dendrobium sp. was once inevery 10 days.
Kadar Bahan Organik Tanah pada Tanah Sawah dan Tegalan di Bali serta Hubungannya dengan Tekstur Tanah AGUSTINA TANGKETASIK; NI MADE WIKARNITI; NI NENGAH SONIARI; I WAYAN NARKA
Agrotrop : Journal on Agriculture Science Vol 2 No 2 (2012)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (46.495 KB)

Abstract

Recently, the soil organic matter was exposed decrease rapidly. The intensive soil tillage andapplication anorganic fertilizer to suppose decrease soil organic matter. How low organic matter contentof paddy soil and uppland soil not yet were taken.Soil sample of paddy soil and upland soil were taken from regency in Bali. Number of soil samplewas 96 consisted of 48 soil samples from paddy soil and 48 from uppland soil. For each regency wastaken 4 - 5 soil samples with random sampling. Soil sample was analyzed at Laboratorium TanahFakultas Pertanian Universitas Udayana. Organic matter content was analyzed with Walkley danBlack method and soil texture was analyzed with Pipet method. Organic matter content of paddy soilwere correlated with soil texture (sand, silt and clay), and of uppland soil were correlated with soiltexture (sand, silt and clay).Result of this experiment showed that, soil organic matter of paddy soil was higer than uppland soil.Soil organic matter of paddy soil with criteria very high 4.17 %, high 27.08 %, moderate 47.92 %,low 18.75 % and very low 2.08 %. Soil organic matter of uppland soil with criteria : high 6.25 %,moderate 35.42 %, low 39,58 % and very low 18.75 %. Fine texture was dominant of paddy soil, butcoarse texture was dominant at uppland soil. Correlation between soil organic matter to soil texture ofuppland soil was better than correlation between soil organic matter with soil texture at paddy soil.Correlation soil organic matter with texture (sand) at uppland soil r = -0.5142*) and correlation withclay r = 0.5007*. Correlation at paddy soil between sand and soil organic matter r = -0.1241 andbetween clay and organic matter of soils r = 0.2150.
Formulasi Inokulan Jamur Pembentuk Gubal Gaharu pada Tanaman Ketimunan (Gyrinops versteegii) I MADE MEGA; DEWA KETUT SUANDA; DESAK NYOMAN KASNIARI; WAYAN SUENA; MADE ADI OKA PARWATA
Agrotrop : Journal on Agriculture Science Vol 2 No 2 (2012)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (57.624 KB)

Abstract

This study aims to find the most effective formulation of the gaharu agar wood forming fungi inoculantswhich infect Gyrinops versteegii plants, thus producing high quality agar wood. The method used inthis research is the randomized block design (RBD) with three replication. The treatments were twofungi as inoculant applied saperately each and a combination of Rhisopus sp. and Fusarium sp. in theform of solid and liquid. The treatments tested were: (A) Fusarium solani fungi inoculant in solid form,(B) Rhisopus sp.fungi inoculant in solid form, (C) Mixture of Rhisopus sp. and Fusarium solani fungiinoculants in solid form, (D) Fusarium solani fungi inoculant in liquid form, (E) Rhisopus sp.fungiinoculants in liquid form, (F) Mixture of Rhisopus sp. and Fusarium solani fungi inoculants in liquidform, and (G) A combination of solid and liquid of Rhisopus sp. and Fusarium solani fungi inoculants.The parameters measured were the agar wood formed: agar wood fragrance level, color of agar woodand resin content of the agar wood. Furthermore, the data is analyzed statistically by analysis ofvariance. The results showed that, treatments of inoculants formulations significantly affects the aromaand resin content of agar wood. Formula of G (a combination of solid and liquid Rhisopus sp. andFusarium solani fungi inoculants) and F (a combination of liquid Rhisopus sp. and Fusarium solanifungi inoculants) produced agar wood of the highest quality compared to other formulas. Formula Gand F produced each agar wood with black and blackish-brown colour, with strong aroma (fragrance),and a resin content of 7.69% and 6.98%.
Peranan Serasah Terhadap Sumbangan N dan P pada Agroekosistem Kopi RUSDI EVIZAL; TOHARI TOHARI; IRFAN D. PRIJAMBADA; JAKA WIDADA
Agrotrop : Journal on Agriculture Science Vol 2 No 2 (2012)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (62.679 KB)

Abstract

Litter is the main source of organic matter and nutrient entrance in shade grown coffee agroecosystems.Shade trees provide ecological and economic benefits in coffee agro-ecosystems thatindicate the key factor for sustainable coffee production. This study examined the role of litter onnutrient (N and P) returning in coffee agro-ecosystems. The experimental plots of Coffea canephorawere constucted at benchmark site of Conservation and Sustainable Management of Below-GroundBiodiversity (CSM-BGBD), in Sumberjaya Subdistrict, West Lampung, Indonesia, during 2007-2010.Types of shade trees to be examined were legume shade trees of Gliricidae sepium and Erythrinasububrams, non-legume tree of Michelia champaca, and no shade tree. The results showed that: (1)kind of shading determined litter productivity of coffee agro-ecosystems. Litter productivity of coffeeagro-ecosystems with shade trees increased coffee bean yield, (2) litter was an important source of Nand P that returned into the soil. Amount of nitrogen from litter biomass has linier effect on coffee beanyield.
Studi Biologi Ulat Bulu Lymantria marginata Wlk. (Lepidoptera : Lymantridae) Pada Tanaman Mangga NI NENGAH DARMIATI; WAYAN SUSILA; NI KADEK NITA KARLINA ASTRIYANI ASTRIYANI
Agrotrop : Journal on Agriculture Science Vol 2 No 2 (2012)
Publisher : Fakultas Pertanian Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (273.049 KB)

Abstract

The study was conducted at the Laboratory of Plant Pest and Disease Management, Departmentof Agroecotechnology, Faculty of Agriculture, University of Udayana. The purpose of this study was todetermine the life cycle of caterpillars L. marginata, praoviposisi period, oviposition, pascaoviposisi,male imago long life, female imago long life and fecundity of caterpillars L. marginata and sex ratio ofcaterpillars L. marginataThe results showed that the life cycle of L. marginata average of 52.00 ± 3.68 days with an eggstage was 8.20 ± 1.88 days, larval stage average 29.05 ± 1.76 days, and the pupal stage an average of12.60 ± 2.18 days (n = 20).The number of eggs laid by the female imago is 2872 grains with an average 143.60 ± 34.63 eggsper imago, with praoviposisi period was 2.15 ± 0.75 days, oviposition period of 1.80 ± 0.77 days, aperiod pascaoviposisi 2.05 ± 0.83 days. Females imago long live ranged from 5-7 days with an averageof 6 ± 0.85 days and males imago long life ranged from 2-7 days with an average of 4.5 ± 1.54 days(n = 20). Sex ratio of L. marginata approaching 1:1 (47% males and 53% females

Page 1 of 2 | Total Record : 13

 1   2 

Filter by Year

2012 2012


Reset
Filter By Issues
All Issue Vol 14 No 2 (2024) Vol 14 No 1 (2024) Vol 13 No 3 (2023) Vol 13 No 2 (2023) Vol 13 No 1 (2023) Vol 12 No 2 (2022) Vol 12 No 1 (2022) Vol 11 No 2 (2021) Vol 11 No 1 (2021) Vol 10 No 2 (2020) Vol 10 No 1 (2020) Vol 9 No 2 (2019) Vol 9 No 1 (2019) Vol 8 No 2 (2018) Vol 8 No 1 (2018) Vol 7 No 2 (2017) Vol 7 No 1 (2017) Vol 6 No 2 (2016) Vol 6 No 1 (2016) Vol 5 No 2 (2015) Vol 5 No 1 (2015) Vol 4 No 2 (2014) Vol 4 No 1 (2014) Vol 3 No 2 (2013) Vol 3 No 1 (2013) Vol 2 No 2 (2012) Vol 2 No 1 (2012) Vol 1 No 2 (2011) Vol 1 No 1 (2011) More Issue