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September 2017 Vol. 5 No.9

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Abd El-Samad HM
Mohamed AA

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Merit Research Journal of Agricultural Science and Soil Science (ISSN: 2350-2274) Vol. 5(9) pp. 166-174, September, 2017

Copyright © 2017 Merit Research Journals

Original Research Article

The biotic role of natural biofertilizer application in improvement osmotic defense system of two wheat cultivars grown under osmotic stress

 
 
 

Hamdia, M. Abd El-Samad* and Mohamed, A. A.

 

1,2Botany and Microbiology Department, Faculty of Science, Minia University, El-Minia, Egypt

*Corresponding Author’s E-mail: hamdia10@yahoo.com

Accepted August 27, 201
7

 

Abstract

 

The present work was conducting to study the response strategy of salt tolerance of cv. Sakha 94 and cv. Giza 168 and the biotic role of fertilizer Azospirillum brasilense inoculation in improvement osmotic defense system of these cultivars. It can be observed that cv. Giza168 was the most tolerant one and cv. Sakha 94 was the sensitive one. This sensitivity in cv. Sakha 94 was concomitant with the decrease in osmotic pressure of the cell sap, soluble sugar and soluble protein, shoot K+ and Ca++ and root K+, water uptake, fresh, dry matter and length of shoot and root of wheat plant. On the other side the tolerant of cv. Giza in 168 was concomitant with the increase of osmotic pressure, shoot soluble sugar, soluble protein, water content, fresh, dry matter and length of both organs. Sodium increased in shoot and root of both cultivars. Azospirillum application was significantly increased in the production of fresh, and dry matter length and water content of both cv. Sakha 94 and cv. Giza 168. Soluble sugar and soluble protein content of both cultivars were markedly accumulated. Azospirrillum application induced a marked decrease in the accumulation of Na+ content in shoot and root of both tested cultivars. Azospirillum inoculation was significantly increased K+, Ca++ and Mg++ with increasing osmotic stress in shoot and root of cv. Sakha 94. In cv. Giza168, there are a similar trend between shoot and root in the accumulation of K+ and Ca++, increase with increasing osmotic stress.

Keywords: Osmotic stress, biofertilizers, ameliorated, wheat cultivars.






 








 




 

 
 


























 
 

 
 
   
   
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
   
 
                         

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