Kemampuan Antagonistik Beberapa Isolat Pseudomonad Fluoresen Terhadap Bakteri Ralstonia Solanacearum Penyebab Penyakit Layu Pada Tanaman Tomat

  • Yenny WURYANDARI Fakultas Pertanian Universitas Pembangunan Nasional “Veteran” Surabaya
  • Arika PURNAWATI Fakultas Pertanian Universitas Pembangunan Nasional “Veteran” Surabaya
  • Triwidodo ARWIYANTO Fakultas Pertanian Universitas Gadjah Mada. Yogyakarta
  • Bambang HADISUTRISNO Fakultas Pertanian Universitas Gadjah Mada. Yogyakarta

Abstract

Bacterial Wilt disease (Ralstonia solanacearum) is a main problem in tomato plant.
Controls of it have been optimum success yet. Control of it using certainly pseudomonad fluorescent
strain can pressure plant disease developments which cause soil pathogen.The aim of the research, get
pseudomonad fluorescent from tomato rizosfer which can inhibit of wilt bacteria disease Ralstonia
solanacearum. Research methods are isolation and identification of pathogen bacteria and
antagonistic bacteria. Biological control agents candidate selection was done with antagonistic in
vitro and inhibit mechanism test. The Research show; there is wilt symptom in tomato areal at Wajak
Malang. From isolation get Ralstonia solanacearum bacteria with identity white coloni, fluidal,
irregular shape in YPGA media and high virulensi. From tomato rizosfer soil isolation in the same
areal get 130 isolate of pseudomonad fluorescent in King’s B media. Antagonistec test in vitro to it
isn’t of all bacteria can inhibit Ralstonia solanacearum growing. From them which was tested, get
variation of inhibit zona from 4 mm until more than 30 mm. More of inhibit mechanism is
bacteriostatic and only many is bacterisida.
Published
2008-03-04
How to Cite
WURYANDARI, Yenny et al. Kemampuan Antagonistik Beberapa Isolat Pseudomonad Fluoresen Terhadap Bakteri Ralstonia Solanacearum Penyebab Penyakit Layu Pada Tanaman Tomat. Jurnal Pengendalian Hayati, [S.l.], v. 1, n. 1, p. 1-5, mar. 2008. ISSN 1979-2190. Available at: <https://jurnal.unej.ac.id/index.php/JPH/article/view/3>. Date accessed: 24 jan. 2020.
Section
Artikel Penelitian

Keywords

Key word: Pseudomonad fluorescent, Ralstonia solanacearum