يمكنكم ارسال مقالاتكم عبر البريد الالكتروني jscience@ush.sd

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Effect of Associative Nitrogen Fixing Bacteria on Wheat (Triticum aestivum L.) Yield and Yield Component

Zakia Abdelhadi Hassan Ahmed* , Tagelsir Hassan Mohamed Ahmed*

* Department of Botany, Faculty of Science and Technology, Shendi University Tagelsir4m@gmail.com

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Abstract

The study was carried out at the Faulty of Science and Technology, Shendi University to evaluate the isolatation and characterization of associative nitrogen fixing bacteria and their role in wheat (Triticum aestivum L.) Yield and Yield Component. Three isolates of Azotobacter were isolated from South Shendi and North Shendi. One Azotobacter and one Azosperillum strain were obtained form the National Research Center, Sdan. A pot and field experiments were conducted to assess the effect of associative nitrogen fixing bacteria on the yield and yield component of wheat. A complete block design with three replicated was adopted. Inoculation with associative nitrogen fixing bacteria or a combination of them or with half dose of phosphorus have a significant (p> 0.05) effect on wheat shoot length, shoot dry weight, number of Tiller per plant, number of Kernels per Plant, (both in pot and field experiments), 100 seeds Weight and yield per Sq Meter compared to the control untreated plots. Addition of half phosphorus recommended dose to any isolate or a combination of them showed a better effect in all tested parameters than phosphorus alone. Isolates from South Shendi gave a significant effect on all tested parameters than isolates from North Shendi or the introduced strain. The introduced Azotobacter and its combinations with other isolates gave the best results than Azosperillm alone or in a combination with any strain.
Keywords: Wheat, Triticum aestivum , Nitrogen Fixination ,Azotopacter

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