HYBRID EVENT: You can participate in person at Paris, France or Virtually from your home or work.
Paris, France
September 30 - October 2, 2021

Najeeb Ahmed Mohosen Sallam

Speaker for GPMB 2021 - Najeeb Ahmed Mohosen Sallam
Najeeb Ahmed Mohosen Sallam
Univesity of Aden, Yemen
Title : Seed Borne Mycoflora of Some Cereal Crops ( Wheat , Barely And Sorghum ) from five regions of Makiras /Yemen

Abstract:

The present study aimed to survey  fungi on seeds wheat (  Triticum aestivum) , Barely (Hordeum vulgare L.) , sorghum (Sorghum bicolor ). From 5 four Regions  of makiras /yemen . At least eight fungal genera were recovered from Seeds of wheat : Aspergillus ? Alternaria ? Fusarium ? Helmenthosporium ? Chaetomium ? Curvularia ? Rizopus ? Pencillium  . The most frequently isolated fungi were  Aspergillus niger (32%), Helmenthosporium sativum (15%) , and  the low frequently isolated fungi were  Pencillium sp(9%)   , Chaetomium globosum (7%) . the fungal genera were recovered from Seeds of Barely :  Aspergillus ? Alternaria ? Fusarium ? Helmenthosporium ? Curvularia ? Rhizopus ? Pencillium  ? Cladosporium ? Chaetomium  ? Rhizoctonia  ? Macrophomina.  The most frequently isolated fungi were  Aspergillus niger (29 %), Alternaria alternata (15%) , and  the low frequently isolated fungi  were Cladosporium sp (5.5%)   , Macrophomina phasolina)  (4%) .

The fungal  genera were recovered from Seeds of sorghum :  Aspergillus ? Alternaria ? Fusarium ? DrechsleraCurvularia ? Cercospora? Rhizopus ? Pencillium 

The most frequently isolated fungi were  Aspergillus niger (28 %),   (13 %) , and  the low frequently isolated fungi were Pencillium sp  (7 %), Fusarium moniliforme (7 %).  Seedling Symptoms Test , results showing that  a wheat of seeds ( mikearas variety) , From 5 Regions  of  makiras /yemen  were infected by seed borne mycoflora more than 32.2 % while were least infected by seed borne fungi , The incidence in Areab of valley than (15 %) , a pathogen of seedling of wheat was most prevalent fungus on the seeds of all Regions  of makiras /yemen .The isolated fungi were  Curvularia lunata , Fusarium  oxysporum, Helmenthosporium sativum Alternaria alternata.and polymyxa graminis . a barely of seeds were infected by seed borne mycoflora more than 22.4 % while were least infected by seed borne fungi , in Shargan of valley than (15 %) .

.The isolated fungi were  Curvularia lunata , Fusarium  oxysporum, Helmenthosporium sativum Alternaria alternata. Cladosporium sp  and polymyxa graminis. a seeds of sorghum (Al dora  baida  variety)  were  infected by  seed borne mycoflora more than 18.8 % while were least infected by seed borne fungi , The incidence in plause of valley than (12 %) .The isolated fungi were  Curvularia lunata , Fusarium  oxysporum, Drechslera sorghicola ,Alternaria alternata. Cladosporium sp  and polymyxa graminis. .due to which low germination as well as emergence of abnormal ,It is apparent from the present investigation that all Regions  of makiras /yemen. Wheat, Barely and    sorghum seeds  tested  were contaminated by seed borne mycoflora. It is germinated in high proportion with variable number of normal and infected seedlings. The fungi associated with seeds cause dire diseases in wheat, , barely and  sorghum    reducing the germination capacity .Samples  were  collected  from  plants  showing  symptoms  of  dwarf  and  chlorosis. All  roots  were  checked  under microscope. Some  roots  of  barley  and  wheat  were  detected  to  be  infected  by Polymyxa  graminis. This  is  the  first  report of P. graminis in yemen.

: Keywords: Mycoflora, Wheat, Barely and Sorghum , Seed borne fungi , Germination , Black point, Spot blotch , Rot root.

Biography:

Dr. Salam, Najeeb Ahmed Mohsen, studied plant protection / College of Agriculture / University of Aden / Yemen. Graduated with a Bachelor's degree in Agriculture / Plant Protection in 1994. Appointed as a teacher of plant protection sciences at the Agricultural Technical Institute / Lahij / Ministry of Vocational and Technical Education / Yemen. He received a master's degree in 2003. He received his PhD in 2010. I joined the University of Aden 2013. He obtained an associate professorship in the integrated management of plant diseases / University of Aden. Published 12 research papers in journals. Member of the Arab Society for Plant Protection and the Yemeni Life Sciences Society. Participate in international and local conferences

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