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June 2021 Vol. 9 No.5

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Tariq M
Maria

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Merit Research Journal of Agricultural Science and Soil Science (ISSN: 2350-2274) Vol. 9(5) pp. 050-063, June, 2021

Copyright © 2021 Author(s) retain the copyright of this article
DOI: 10.5281/zenodo.5047809

Original Research Article

Distribution of okra root rot (Fusarium solani) in district of Peshawar and Nowshera and characterization of different isolates

 
 
 

Maryam Tariq*, Hakim Khan, Fazli Raziq and Maria

 

Department of Plant Pathology, University of Agriculture, Peshawar.

*Corresponding Author’s E-mail address-hakimkhan74@yahoo.com

Received: 13 April 2021  I  Accepted: 15 June 2021  I  Published: 28 June 2021  I  Article ID: MRJASSS17026
Copyright © 2021 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0.

 

Abstract

 

The root rot of okra (Fusarium solani) was distributed up to 32.09 to 91.14 % in ten different okra growing regions of District Peshawar and Nowshera. The highest disease severity with maximum (91.14 %) percent mortality was reported by isolate NI2 from Garhi Momin and lowest (32.09 %) by isolate NI4 from Balu. In vitro, all the isolates were observed to be significantly different by their characterization at different pH levels (5.0, 5.6 and 9.0). All the isolates grew well at pH level of 5.0 with maximum colony diameter of 76.73 mm, 1.97 g of fresh biomass and 2.29×106 ml-1 of spore production and at pH 5.6 (77.14 mm, 1.89 g and 2.16×106 ml-1). The maximum growth among the isolates was attained by isolate NI2 with 96.67 mm of colony diameter, 2.52 g of biomass and 3.23×106 ml-1of sporulation and lowest by NI4 (57.89 mm, 0.87 g and 0.76×106). In vitro, Dithane M-45 was found as the most effective fungicide in controlling Fusarium solani (6.87 mm, 0.24 g, 0.09×106 ml-1) than Aliette (75.20 mm, 1.54 g, 1.54×106 ml-1) and Copper oxychloride (69.10 mm, 1.55 g, 1.45×106 ml-1) as compared to control (84.67 mm, 2.18 g, 2.14×106 ml-1). The isolate NI2 found as the most aggressive isolate by exhibiting the maximum growth in Aliette and Copper oxychloride amended culture media as observed in control (non poisoned).

Keywords: Okra, Root rot, Fusarium solani, isolates, in vitro and characterization.





















 






 


 


 

 













 


















































































 








 




 

 
 


























 
 

 
 
   
   
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
   
 
                         

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