Hadiwiyono Hadiwiyono
Department of Agrotechnology, Faculty of Agriculture, Sebelas Maret University

Published : 18 Documents

Found 18 Documents

Keberadaan Mikovirus Berdasarkan Deteksi Berbasis RNA pada Colletotrichum Hipovirulen Maknun, Lulu'il; Supyani, Supyani; Hadiwiyono, Hadiwiyono; Tjahjono, Budi
Agrotechnology Research Journal Vol 3, No 1 (2019): AGROTECHNOLOGY RESEARCH JOURNAL
Publisher : Perhimpunan Agroteknologi/Agroekoteknologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/agrotechresj.v3i1.27596


Fertilization is any effort that aims to increase the availability of nutrients needed by plants, and increase crop production. The study aimed to obtain fertilizer types, fertilizer dosages and combinations of types and dosages of fertilizers suitable for growth and yield of Crystal Guava plants. The study was conducted on October 2018 to Mei 2019 on farmer’s land, Banjarsari Kulon Village, Sumbang District, Banyumas Regency and Agronomy and Horticulture Laboratory of the Faculty of Agriculture, Jenderal Sudirman University. The experimental design used was a Randomized Completely Block Design (RCBD) with 2 factors and 3 replications. The first factor was the type of fertilizer, namely NPK, SP-36 and MKP fertilizers. The second factor was fertilizer dosage, namely 20 g / plant, 30 g / plant, 40 g / plant and 50 g / plant. Observed data were done by Analysis of Variance and if it significantly affected then DMRT (Duncan’s Multiple Range Test) was carried out at the level of 5%. The results showed that the most effective type of NPK fertilizer and dosage of 20 g / plant. The combination of NPK fertilizer with a dose of 20 g / plant was the most effective treatment for increasing the growth and yields of the Crystal Guava plant.
“KESUPRESIFAN TANAH” TERHADAP BUSUK PANGKAL (Fusarium oxysporum f. sp. cepae) BAWANG PUTIH DI TAWANGMANGU, KARANGANYAR Hadiwiyono, Hadiwiyono; Wuspada, Retna D. Wuspada D; Widono, Salim; Poromarto, Susilo H; Fatawi, Zaenal D
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 6, No 1 (2009)
Publisher : Faculty of Agriculture, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v6i1.60


Since planting season in 2000, basal plate rot (Fusarium oxysporum f. sp. cepae) has been an important disease on garlic in Tawangmangu, Karanganyar, Central Java. More than 92 % of the garlic lands have been contaminated by the pathogen. However, there are some lands showing very mild disease incidence. The contaminated soil, in which the disease does not develop, is called suppressive soil. The phenomenon is interesting to investigate for understanding the occurrence of endemic of basal plate rot on the garlic in Tawangmangu and for developing control of the disease. The analysis results indicated that the suppressiveness of the soil was related to physical, chemical, and biological properties of the soil. Keywords: suppressive soil, Fusarium oxysporum f. sp. cepae, garlic
JURNAL EKONOMI DAN KEBIJAKAN PEMBANGUNAN Vol. 2 No. 2 (2013): Jurnal Ekonomi dan Kebijakan Pembangunan
Publisher : IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (937.806 KB) | DOI: 10.29244/jekp.2.2.156-175


Indonesia needed to be cautious of import surge since it has potential to influence import value and price in the era of trade globalization. The main purpose of this reasearch was to examine whether import surge occurred for horticulture commodities in Indonesia, especially for potato. The methods used for identifying occurrence of import surge was based on Special Safeguard Mechanism framework of World Trade Organization which will strengthened with Vector Error Correction Model to analyse the impact of import surge to domestic prices. Based on Special Safeguard Mechanism framework, volume-based Special Safeguard Mechanism triggered in almost all year during 2002-2012 but price-based Special Safeguard Mechanism is not triggered in those years. Based on Impuls Response Function analysis, the impact of import surge shock to domestic price was relatively low but occurred permanently. Based on Forecast Error Variance Decomposition analysis, import surge variables contributed slightly to the domestic price variability but it tend to increased as time. Keywords: Horticulture, Potato, Special Safeguard Mechanism, Import Surge, Vector Error Correction Model
Succession of Fungal Community Structure in Degradative Land Caused by Basal Rot Pathogen of Garlic Cahyani, Vita Ratri; Rahayu, Devi Puji; Siswanto, Agus; Prasetyo, Dedy; Hadiwiyono, Hadiwiyono
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi 2014: Articles in Press (Vol. 11 No. 1)
Publisher : Faculty of Agriculture, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v0i0.216


Land degradation causes a decreasement the ability of land in suppressing the development of pathogen FOCe that causes basal rot of garlic. In the garlic planting area in Tawangmangu discovered the fact that productive-suppressive land to FOCe the disease has low incidence (<1%) and degradative-conducive land with high incidens (≥60%). The research aims to study the succession of common fungal community structure and FOCe in the rhizosphere of garlic on both land for garlic plantation. The study was conducted from April to September 2013 in productive-suppressive land (Pancot) and degradative-conducive (Gondosuli) for soil sampling and laboratory analysis in Biologi Tanah UNS for fungi and FOCe analysis. The composite method used for sampling and the garlic rhizosphere samples  which is had healthy plants conditions aged 0, 20, 40, and 60 days after planting (DAP), and the garlic rhizosphere samples with healthy plants and diseased condition aged 80, 100, and 120 days after planting (DAP). Laboratory analysis using PDA culture medium as common fungi growing medium and SFA as a growing medium FOCe then observed population density and diversity. The method was pour plate method with 10-2 to 10-7 dilution. The results showed the population and diversity of fungi and FOCe have dynamics fluctuation. The fungi population in productive-suppressive land lower than degradative-conducive, with each value 108 and 3,5x108 CFU gram-1 soil. FOCe population on degradative-conducive land was higher than productive-suppressive land, and the highest population in both land at age 20 and 100 DAP with a FOCe density of each land about 1,25x107 and 1,66x107 CFU gram-1 soil. During the growth periode of garlic, the fungi diversity on productive-suppressive land always indicate higher than degradative-conducive land.
Keanekaragaman Jamur dan Bakteri Rizosfer Bawang Merah terhadap Patogen Moler Bernadip, Bayu Rahmad; Hadiwiyono, Hadiwiyono; Sudadi, Sudadi
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 11, No 1 (2014)
Publisher : Faculty of Agriculture, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v11i1.218


TITLE : DIVERSITY OF FUNGI AND BACTERIA OF SHALLOT RIZOSPHERE AGAINST MOLER PATHOGEN. The diversity of microorganisms is important in maintaining soil environment equilibrium, include hindering plant pathogens as moler. Moler is a disease caused by Fusarium oxysporum f. sp. cepae (FOCe) that cause lost all the crops of shallot. Research is aimed to study the fungus and bacteria diversity of shallot rizosphere and their antagonism against FOCe which important to be biological agent of moler disease. The study was held in a descriptive explorative method, soil samples taken to know the relation of plant condition with fungus and bacteria diversity of shallot rhizosphere and their antagonism against FOCe. Fungus and bacteria were isolated from both of healthy and moler diseased of shallot rhizosphere. The result showed that healthy and moler diseased shallot rhizosphere had population of fungus and bacteria with no differences and had medium level of fungus and bacteria diversity. The fungus and bacteria isolated from healthy shallot rhizosphere had stronger antagonism against FOCe.
Daun Mimba, Sirih, dan Pahitan sebagai Fungisida Nabati: Efektifitas dan Kompatibelitasnya dengan Trichoderma untuk Pengendalian Penyakit Akar Gada (Plasmodiophora brassicae) Hadiwiyono, Hadiwiyono
Caraka Tani: Journal of Sustainable Agriculture Vol 20, No 2 (2005): October
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v20i2.20490


The research aims to evaluate effectiveness of leaf extract oh neem, piper, and eupathorium as botanical pesticide and its compatibility which use of biological control agents Trichoderma for control of club root disease. The test conducted in greenhouse belong to Faculty of Agriculture, University of Sebelas Maret at Surakarta., on June till September 2004. The research used completely randomized design with 3 replications consisted 10 soil treatments before planting using leaf extract of neem (Azadirachta indica), Piper betle, and Eupathorium inulifolium and Trichoderma or its combinations. As dependent variables are disease severity, weight of health root, weight of fresh biomass and dryy biomass.The result of the research showed that soil treatment using leaf extract of neem, piper, and euphatorium could reduce effectively disease severity of club root. Treatment combinations of leaf extract of neem, piper, and euphatorium could increase effectiveness of control of club root and compatible with soil treatment using Trichoderma so it could increase effectiveness of the disease control.
Jamur Pelarut Fosfat untuk Menekan Penyakit Moler (Fusarium oxysporum F. SP. Cepae) dan Meningkatkan Pertumbuhan Bawang Merah Hadiwiyono, Hadiwiyono; Sudadi, Sudadi; Sofani, Claudia Sandy
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 11, No 2 (2014)
Publisher : Faculty of Agriculture, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v11i2.232


Title : P-solubilizing Fungi as Biological Control Agents to Increase Growth and Prevent Moler Disease of Red Onion. This research aim to obtain phosphate-solubilizing fungi have antagonistic ability to Fusarium oxysporum f. cepae, and increase soil available-P. The experiment was hold in April 2013 to February 2014. Antagonistic capability was observed in two stages i.e. in vitro test which was conducted in the Laboratory of Soil Biology and Biotechnology, while in vivo test in green house, Faculty of Agriculture, Sebelas Maret University Surakarta. The experimental design used was completely randomized design (CRD). The treatment factors of in vitro test were kinds of phosphate solubilizing fungi and incubation time with Pikovkaya liquid medium, while the treatment factor of in vivo test was isolates combination of phosphate solubilizing fungi. Each treatment combination was repilcate three times. The observated variable included soil available phosphate, shallot height, shoot dry weight, moler disease intensity, infection rate, and area under the disease progress curve. The research obtained 3 isolates of fungi with high potential as inoculums of P-solubilizing biofertilizer and biological control agents against moler desease of red onion. The resullt showed that mix of JK12 isolate (isolated from Entisol of Bantul District) and isolate of JK14 (from Andisol of Tawangmangu sub district) demonstrated the highest ability in solubilizing phosphate and suppressing moler disease of red onion.
International Journal of Biosciences and Biotechnology Vol 5 No 1 (2017)
Publisher : Faculty of Agriculture, Udayana University in cooperation with Asia-Oceania Bioscience and Biotechnology Consortium (AOBBC)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/IJBB.2017.v05.i01.p07


Endophytic bacteria are the bacteria that live in plant tissues. In oil palm tissue there are many types of endophytic bacteria and have a role that can be beneficial for the plant, one of them is endophytic Bacillus sp. The aim of these research was to obtain morphology, physiology and molecular characteristics of endophytic Bacillus sp. originating from oil palm tissue. Sampling was done by random simple sampling method. Isolation of bacteria was performed on plant tissues such as roots, midribs, stems and leaves of oil palm plants. The results of morphological characterization such as colony color, colony shape and colony edge show similarity in each isolate but there are differences in the surface morphology of the colony, where there are 6 isolates with convex surface and 6 isolates with flat shape. Physiological test results such as catalase test, oxidase test, starch hydrolysis test, motility test and temperature effect test on bacterial growth showed positive results in each isolate. Molecular characterization using 16S rRNA primers based on BLASTn shows that all isolates tested have similarities with Bacillus sp. Based on the phylogenetic tree it was found that the endophytic bacteria of Ba-B2 isolates were associated with Bacillus flexus with 100% consistency index grouped at a distance of 0.03 and Ba-P2 isolates were related to Bacillus substilis at a distance of 0.01 with an 89% consistency index.
Tanah Supresif: Terminologi, Sejarah, Karakteristik, dan Mekanisme Hadiwiyono, Hadiwiyono
Jurnal Perlindungan Tanaman Indonesia Vol 14, No 2 (2008)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.11881


Many definitions of the suppressive soil purposed were proposed by some authors, however in summary, suppressive soil is the soil where virulent pathogen and susceptible host exist but the population and or disease produced by the pathogen are limited, due to the biotic factors supported by some specific environmental conditions. The suppressive soil phenomena has been recognized since 100 years ago, but it was thought as an interesting field since 30 years ago, and since the year many research topics related to the suppressive soil are conducted and leading to be popular. Based on the characteristic, suppressive soil could be grouped into general suppressive involving an antagonistic microbe complex being nontransferable, and specific suppressive caused by one or some antagonistic microbe being transferable. Antagonism mechanism of the microbes involved in the suppressiveness could be through antibiosis, competision, parasitism, predatism, and induced resistance. Banyak batasan tanah supresif diberikan oleh para ahli, namun dapat disarikan bahwa tanah supresif merupakan tanah dengan patogen virulen dan inang rentan tetapi populasi dan atau penyakit yang ditimbulkan tertekan, oleh faktor hayati yang didukung oleh lingkungan yang spesifik. Fenomena tanah supresif telah diketahui sejak lebih 100-an tahun yang lalu, namun mendapat perhatian baru sejak 30-an tahun yang lalu, dan sejak itu penelitian-penelitian yang mempelajari tanah supresif semakin banyak dan populer. Berdasarkan karateristiknya, tanah supresif ada dua kelompok yaitu supresif umum yang melibatkan kompleks mikrob antagonis yang tidak dapat dipindahkan (nontransferable), dan supresif khusus yang disebabkan satu atau beberapa mikrob antagonis yang dapat dipindahkan. Mekanisme antagonisme mikrob yang berperan dalam kesupresifan tanah dapat melalui antibiosis, kompetisi, parasitisme, predatisme, dan resistensi terimbas
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 7, No 1 (2010)
Publisher : Faculty of Agriculture, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v7i1.50


A lot of plant disease is caused by soilborne pathogens which various damage symptom and loss of the crop. In some fields, the disease intensity was severe, in some other fields however the disease was suppressive. The second phenomenon is called suppressive soil. The suppressive soil is a natural biological control that is usefull as basis in developing control of the soilborne pathogens. In the practice, the disease control based on the suppressive soil could be accomplished by habitat management through technique culture practices to enhance activity of the endogenous biological control agents and or introduction one or more antagonists from endogenouse or exogenous microbes. The disease control has many advantages such save in the environment and enhance the product value due to the acceptance in the global market. It implicats that the disease control approach is compatible with concept of the integrated pest management (IPM) and sustainable agriculture system. Keywords: biological control, integrated pest management, suppressive soil