Global Advanced Research Journal of Agricultural Science April 2012 Vol. 1(3), pp 056-061Copyright © 2012 Global Advanced Research Journals

Full Length Research Paper 

Study on distribution and type of cardiac lesions in aborted lambs

 *Ramin AG, Hobe-Naghi R,  Akbari H and Ramin, S

1Clinical science, Vet. College, Urmia University,

2 Histopathol. Dept, Vet College, Urmia University, 

3assistant of internal medicine, Vet. College.,Urmia University, 

4Medical student, Medical Sciences of Tabriz University, Tabriz 

*Corresponding author E-mail: 

Accepted 09 April, 2012


Genotypic differences in major components of the nitrogen uptake and use efficiency between bread wheat (Triticum aestivum L.) landraces was evaluated in field conditions under varied N fertilization levels (0, 200 kg N ha-1) based on RCB design with three replications. All characters showed significant genotypic diffrences. Results showed that high variation between genotypes in almost trials by reducing nitrogen. The interaction of G × N for all characters was significant, except harvest index (HI). The highest grain yields belong to Girmizigul, Bc-5, Bc-7 and Bc-17 and the lowest sensibility to N reduction belong to Bc-13 and Bc-14. Landraces of Bc-12, Bc-14 and Bc-16 for grain N concentration and Bc-4, Bc-7 and Bc-14 for straw N concentration showed the lowest reaction to N reduction. Among of N use efficiency components, Nitrogen uptake efficiency was contribution for about 95% of variation at both levels of N. The best landraces for N uptake efficiency were Bc-5, Bc-11 and Bc-15. Grain yield at all N0, N+ and G×N interaction was the best explained by the Grain N concentration than grain N yield. Results indicated that both nitrogen uptake efficiency and grain yield had been more importance criteria for selection of high N use efficiency of wheat landraces in a breeding program. In this experiment, landraces Bc-5, Bc-11 and Bc-15 were the best genotypes with high yield potential and N Uptake.             

Key words: Grain N content, Nitrogen use efficiency, Nitrogen uptake, stable N content. 

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