|
Seed Borne Fungi Of Sunflower And Their Pathogenicity
N.A. Ramadan and A.A.Mahmod.
Biology Department, Science College, University of Mosul, Iraq.
Abstract
Seed health testing on twenty two seed samples of ten cultivars of sunflowers (Helianthus annuus L. Dougl.) (Almo, Azur, Eurofloro, Flamme, Hoggar, IPA, Oscar, Toridill, American cultivar and Local cultivar) for two years showed the occurrence of the following seed-borne fungi: Alternaria alternata, Cladosporium spp., Fusarium spp. Macrophomina phaseoline and Rhizoctonia solani. Isolation from plant debris mixed with sunflower seed samples yielded the presence of Aspergillus flavus, Fusarium spp. and Rhizopus stolanifer. Pathogenicity test of some isolated fungal isolates from seeds of cvs. Azur, Hoggar, IPA and Local cultivar showed that R. solani caused 57% seed decay in cv. Azur and 74% in cvs. Hoggar, IPA and Local, while A. alternata and M. phaseolina did not cause any increase in seed decay in all cultivars. The fungi A. alternata and R. solani , caused 20% increase in post-emergence damping-off in cv. IPA. The most resistant cultivar was Azur, whereas Hoggar was the most sensitive.
|
|
| 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
|
|
