Evaluation of Isolates of Pseudomonas Fluorescens As Biocontrol Agent Against Potato Bacterial Wilt Caused by Ralstonia (Pseudomonas) Solanacearum
| dc.contributor.advisor | Hailemariam, Asfaw ( PhD) | |
| dc.contributor.advisor | Hiskias, Yaynu (PhD) | |
| dc.contributor.author | Kurabachew, Henok | |
| dc.date.accessioned | 2018-07-02T13:03:53Z | |
| dc.date.accessioned | 2023-11-08T16:32:42Z | |
| dc.date.available | 2018-07-02T13:03:53Z | |
| dc.date.available | 2023-11-08T16:32:42Z | |
| dc.date.issued | 2006 | |
| dc.description.abstract | A total of 50 bacterial isolates of fluorescent pseudomonas were isolated from potato rhizosphere soil collected from different potato growing areas of the country. The isolates were screened In Vitro for their antagonistic activity against the pathogen, Ralstonia solanacearum on KB agar medium. Out of the 50 isolates, only three (Pfs2, Pfw1, Pfwt3) showed a certain degree of inhibition to the growth of the pathogen. To test their antagonistic effect in a greenhouse, a pot experiment was conducted using sterilized soil and potato tuber (CIP 383032.15) that was susceptible to the pathogen. In the experiment, bacterization of potato tubers with the selected isolates i.e., Pfs 2, Pfw 1, Pfwt 3 and Pfri (reference strain) significantly reduced the incidence of bacterial wilt by 59.83%, and increased plant growth: plant height and dry weight by 76.89% and 28.44%, respectively suggesting the importance of the isolates as plant growth promoting rhizobacteria. Key words/Phrases: Potato, P. fluorescens, R. solanacearum, Antagonstic Interaction | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/123456789/5518 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Potato | en_US |
| dc.subject | P. fluorescens | en_US |
| dc.subject | R. solanacearum | en_US |
| dc.subject | Antagonstic Interaction | en_US |
| dc.title | Evaluation of Isolates of Pseudomonas Fluorescens As Biocontrol Agent Against Potato Bacterial Wilt Caused by Ralstonia (Pseudomonas) Solanacearum | en_US |
| dc.type | Thesis | en_US |