|
Biological Control Of Soybean Damping-Off Caused By Sclerotium Rolfsii Using Pseudomonas fluorescens And Pseudomonas putida
- Ahmed M. Hassanien, (1), and Gamal A.A. Mekhemar. (2).
(1) Plant Pathology Research Institute, Agric. Research Center, Giza, Egypt
E-mail ahmedhassanein48@yahoo.com
(2) Soils, Water and Environment Research Institute, Agric. Research Center, Giza, Egypt
Abstract
Two biocontrol agents Pseudomonas fluorescens and Pseudomonas putida were evaluated for controlling of soybean damping-off caused by Sclerotium rolfsii under laboratory and greenhouse conditions. The effect of both biocontrol agents on nodulation and growth of soybean was also investigated. Data showed that Pseudomonas fluorescens and Pseudomonas putida caused significant reduction in mycelial radial growth of Sclerotium rolfsii on king’s B medium only. The results obtained showed that Pseudomonas fluorescens and Pseudomonas putida significantly reduced pre- and post-emergence damping-off caused by S. rolfsii and increased plants survival individually or combined with B. japonicum (USDA 110 + 3407). The maximum protection of soybean plants was achieved by seed inoculation with Pseudomonas fluorescens combined with B. japonicum. Co-inoculation with Pseudomonas fluorescens and B. japonicum gave the best results in terms of number, dry weight of nodules, shoots, roots and their N-content. Generally, it was clear that the best results were obtained in case of co-inoculation with the three biocontrol agents which reduced damping-off and enhanced nodulation status and growth of soybean plants. .
|
|
| New Publications |
|
The Arab Scientists in Cooperation with The High Institute of Marine Research. Publish all the researches abstracts, which presented in The Regional Workshop on Marine Sciences and Natural Resources, Tishreen University, Lattakia, Syria, 25-26 May 2004.
|
| New Publications |
|
The Arab Scientists in Cooperation with The Egyptian Society for Biological Control of Pests . Publish all the researches abstracts, which presented in The First Arab Conference of Applied Biological Pest Control, Cairo, Egypt, 5-7 April 2004.
|
| Conferences, Fez |
The First International Symposium on Environnement protection for development Biotechnological aspects. Fez, December
15 – 17, 2004.
|
| Conferences, Syria |
|
The Second Syrian-Egyptian conference in the Agriculture and Food.
Agriculture Faculty, Al-Baath university, Homs, Syria. 25-28 April, 05
|
| Conference,Yemen |
|
Current Status of Plant Protection in Yemen and Future Strategy.
Faculty of Agriculture, Sana'a University, Sana'a, yemen. December 18-20/2004
|
| Conferences Canada |
|
The 9th International Conference of the Orthopterists’ Society
Canada, on August 14 19, 2005
|
| Conferences, Egypt |
|
The First Arab Conference on Applications of Biological Control of Pests in Arab Countries
|
| Workshop,Lebanon |
|
New Workshop
Middle-East Academy for Medicine of Ageing
First Annual Middle-East Age & Aging Meeting
8-11 April, 2004
|
| Publications |
Arab Society for Plant Protection (ASPP) in Cooperation with The Arab Scientists
Publish all the researches abstracts, which presented in the Eighth Arab Congress of
Plant Protection, held in Faculty of Agriculture, Omar Al-Mukhtar University, El-beida
City, Libya, October 12-16,2003
|
|
