Article Per Year (5 Year)
p-Index From 2019 - 2024
0
P-Index
This Author published in this journals
All Journal Agrohorti Bulletin (e-Journal) Jurnal Ilmu Pertanian Indonesia Microbiology Indonesia International Research Journal of Business Studies (E-Journal)
. Widodo
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Immunology & microbiology Medicine & Pharmacology Social Sciences

Published : 5 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 5 Documents
Search

 1 
Ketahanan Penyakit Antraknosa terhadap Cabai Lokal dan Cabai Introduksi Abdul Hakim; Muhammad Syukur; . Widodo
Buletin Agrohorti Vol. 2 No. 1 (2014): Januari 2014
Publisher : Departemen Agronomi dan Hortikultura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (341.112 KB) | DOI: 10.29244/agrob.2.1.31-36

Abstract

Penyakit yang menyebabkan rendahnya produktivitas cabai di Indonesia adalah antraknosa. Penelitian ini bertujuan untuk mendapatkan genotipe tanaman cabai yang tahan terhadap penyakit antraknosa yang disebabkan oleh Colletotrichum acutatum. Penelitian ini dilakukan di lapangan dan laboratorium, menggunakan Rancangan Kelompok Lengkap Teracak, satu faktor dan dua ulangan. Isolat Colletotrichum acutatum yang digunakan adalah BGR 027, PYK 04 dan BKT 05. Hasil penelitian menunjukkan bahwa genotipe IPB C15 memiliki ketahanan paling baik terhadap tiga isolat Colletotrichum acutatum. Genotipe ini merupakan salah satu sumber untuk sifat ketahanan cabai terhadap penyakit antraknosa. Genotipe introduksi lebih mendominasi untuk sifat ketahanan dan keragaan daya hasil daripada genotipe lokal. Dengan demikian perlu dilakukan eksplorasi untuk mendapatkan genotipe lokal yang tahan antraknosa.
Formulasi Tepung Biofungisida Berbahan Aktif Ganda Pseudomonas Fluorescens PG 01 dan Bacillus Polymixa BG 25 . Widodo; Suryo Wiyono
Jurnal Ilmu Pertanian Indonesia Vol. 17 No. 3 (2012): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (761.256 KB)

Abstract

The objective of this study is to determine effective carrier materials and additives which is able to keep the bioperformance, including antibiosis activity to Phytophthora capsici and Colletotrichum acutatum and plant growth promoting effect, of two antagonistic bacteria Psedomonas fluorescens PG 01 and Bacillus polymixa BG 25 in biofungicide powder formulations. Talc and bentonite formulations were effective after 3 months of storage, while tapioca were only effective to B. polymixa up to 3 months of storage. Additive materials that can enhance the antibiosis activity of the bacteria, keeping up the growth and no toxicity effect to chili seedlings were crab shell powder 0.25% and MnSO4 1 to 2%. After eight months storage with 20% moisture content, the bacteria population survived in powder formulation developed in this study was still suitable for seed treatment and/or after transplanting through soil drenching with water. In this period of storage, population of the two bacteria was 106 cfu/g formulation.
Pemanfaatan Sumber Daya Genetik Lokal dalam Perakitan Varietas Unggul Cabai (Capsicum annuum) Tahan Terhadap Penyakit Antraknosa yang Disebabkan oleh Colletotrichum sp Muhamad Syukur; Rahmi Yunianti; . Rustam; . Widodo
Jurnal Ilmu Pertanian Indonesia Vol. 18 No. 2 (2013): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (232.249 KB)

Abstract

The use of resistant varieties based on local resources is one way to solve the problem of anthracnose disease. This study aims to identify the species of anthracnose isolates (Colletotricum accutatum, C. gloeosporioides, and C. capsici) from the various centers of chili production through the characterization of conidia, get the genotypes that are resistant to anthracnose disease, and get information about resistance to anthracnose disease of chili pepper lines. Research activities include morphological characterization of Colletotrichum isolates, screening of resistance the chili pepper lines to anthracnose disease, and screening of resistance the pepper genotypes of exploration results to anthracnose disease. The results showed that the isolates found in the field consist of 3 species, namely C. capsici, C. acutatum, and C. gloesporioides. Forty two isolates of 67 isolates were C. capsici, the rest were C. acutatum or C. gloesporioides. The chili pepper lines were tested, including the criteria for moderate to highly susceptible to anthracnose diseases caused by C. acutatum. IPB C15 Genotype was consistently more resistant to anthracnose caused by C. acutatum as compared to 27 other genotypes.
Vegetative Compatibility Groups within Fusarium oxysporum f. sp. cepae in Hokkaido-Japan . WIDODO; NORIO KONDO; KIROKU KOBAYASHI; AKIRA OGOSHI
Microbiology Indonesia Vol. 2 No. 1 (2008): April 2008
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (104.067 KB) | DOI: 10.5454/mi.2.1.8

Abstract

In Hokkaido, Fusarium basal rot, caused by Fusarium oxysporum f. sp. cepae is one of the important constrains since 1973 which contributes to a significant loss in onion production, either in the fields or during storage. Development of resistant cultivars is suggested as one of the effective control measures against the disease, however, this should be accompanied with thebetter understanding of the pathogen’s population dynamics. This study was performed to investigate the population structure of F. oxysporum f. sp. cepae based on vegetative compatibility groupings (VCGs). Vegetative compatibility groups of F.oxysporum f. sp. cepae were characterized using nitrate non-utilizing (nit) mutants. Four VCGs and 2 single self-compatible (SSC) isolates were identified among 48 isolates, designated as VCG 0420 (33 isolates), 0421 (9 isolates), 0422 (2 isolates), 0423 (2 isolates), and 042-(2 isolates). VCG 0420, to which 4 ATCC isolates out of 6 belonged, was the predominant group within the growing region encompassing Hokkaido Japan. VCGs 0421 and artificial VCG 042- were found less frequently. Four isolates from Welsh onion were not compatible with any recovered VCGs and were assigned to 2 distinct VCGs (VCG 0422 and 0423).
Pengembangan Implementasi Strategi Penelitian Atas Pola Kerja Cerdas Dan Koordinasi Untuk Meningkatkan Kinerja Organisasi . Widodo
INTERNATIONAL RESEARCH JOURNAL OF BUSINESS STUDIES Vol 2, No 1 (2009): April-July 2009
Publisher : Universitas Prasetiya Mulya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21632/irjbs.2.1.311

Abstract

This study based on reserach gap strategy implementation, namely comitmment and quality communication. Contribution in this study is intervening variable smart working and coordination. The respondents for this research were the 120 executives (from a total of 526 executives) of small banking in Central Java Province. The data were then analyzed using SEM (Structural Equation Model) of AMOS. Finding result of this study indicates that strategy implementation in the efort increasing organization performance of main preference is trought smart working built trought coordination.
Co-Authors . Rustam Abdul Hakim AKIRA OGOSHI KIROKU KOBAYASHI Muhamad Syukur Muhammad Syukur NORIO KONDO Rahmi Yunianti Suryo Wiyono