Volume No. 3 Issue No.: 4 Page No.: 1075-1080 April-June 2009

 

EFFECT OF SULFUR DIOXIDE ON TWO WHEAT CULTIVARS

 

Seema Pavgi Upadhye

Department of Biotechnology, IMS Engineering College, Ghaziabad, Delhi (INDIA)

 

Received on : February 06, 2009

 

ABSTRACT

 

The effect of sulfur di oxide was studied on the two wheat cultivars developed by Chandra Shekhar Azad Agriculture University, Kanpur (Triticum aestivum K-7410 and K-816). The two crop varieties of control and exposed plants of wheat were analyzed for various biochemicals like starch, sugar, pigments, proline, ribulose bis phosphate carboxylase (rubisco), pH etc. RUBISCO activity was decreased in K-816 whereas in K-7410 it was nearly constant. Whereas nonstructural carbohydrate increased in K-816 and decreased or remain constant in K-7410. However the original pH of K-7410 was more basic than K-816. More basic pH provides more protection towards sulfur dioxide. However the buffering capacity for K-7410 was nearly constant but it reduced in K-816. Exposure to SO2 caused increase in proline content in two varieties but increase was very less, say nearly equal in K-816. Stomatal conductance and transpiration increased in K-816 but decreased or remained constant in K-7410. From all the above studies and as assessed by various earlier studies conducted in the lab, cultivar K-7410 was found more tolerant than K-816 to be grown in sulfur di oxide exposed area.

 

Keywords : Sulphur di oxide, Wheat, RUBISCO, Biochemicals, K-7410, K-816.

 

 

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