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Soleymani A.,Islamic Azad University at Khorasgan | Shahri M.M.,Islamic Azad University at Khorasgan | Shahrajabian M.H.,Ramin Agriculture and Natural Resource University | Naranjani L.,Islamic Azad University
Journal of Food, Agriculture and Environment | Year: 2010

In many regions in the world sulfur deficiency has been recognized as a limiting factor for canola seed production. To investigate the effect of sulfur fertilizer and plant density of new cultivars of canola under climatic condition of Gorgan region and its suburb, an experiment was conducted in 2004-2005 in form of split split plot design with in randomized complete block design with three replications was used. The main plots consist of level of sulfur fertilizer (0, 125 and 150 kg/ha). Subplots were composed of three plant densities (60, 80 and 100 plants/m 2), and sub subplots were three cultivars of canola (RGS003, Hyola401 and Hyola420). Sulfur fertilizer had significant effect on the distance of first branch from earth, the number of pods in plant, oil percentage, biological yield and harvest index. Cultivar had significant effect on all characteristics, except of stem diameter and the number of seeds per plant. The interaction between sulfur fertilizer and cultivar had no significant influence on traits. Also, oil percentage was affected by plant density and cultivar interaction. There were positive and significant correlations between seed yield and length of pod in main stem (r = 0436**), and seed yield and length of pod in secondary branch (r = 0.488**). Hyola401 also had the highest seed yield, the number of seeds per plant, a thousand seed weight, oil yield, biological yield and harvest index, which had a significant difference with other cultivars. The correlation between oil yield and seed yield was significant and positive (r = 0.790**), it seems that seed yield had capacity and capability to influence oil yield. So under similar condition with this study, application of 250 kg S/ha besides using Hyola401 and the plant density of 60 plants per m2 seems appropriate. Source


Bahrami A.,University of Tehran | Miraei-Ashtiani S.R.,University of Tehran | Mehrabani-Yeganeh H.,University of Tehran | Banani-Rad H.,Ramin Agriculture and Natural Resource University | Behzadi S.,University of Tehran
Animal Production Science | Year: 2015

The present study indicates an association between carcass traits and genetic polymorphism and changes in the protein structure of the growth hormone 1 (GH1) gene in Mehraban sheep. Polymorphism of the GH1 gene was detected by polymerase chain reaction-single strand conformation polymorphism (PCR-SSCP) and DNA sequencing methods in 463 individuals. Two different structures in the GH1 protein and six single nucleotide polymorphisms were identified. The association of these SSCP patterns and protein structures with carcass traits was analysed. The SSCP patterns were shown to be associated with carcass traits. Individuals with AB SSCP pattern and Type B protein structure had significantly higher fat-tail weight and volume (P < 0.05) than did those individuals with CC SSCP pattern and Type A protein structure. Moreover, CC SSCP pattern and Type A protein structure contributed to low concentration of blood triglycerides (P ≤ 0.004). The results confirmed the importance of GH1 as a candidate gene for marker-assisted selection for carcass-trait variations in sheep. © CSIRO 2015. Source


Eydivandi C.,Islamic Azad University at Tehran | Amirinia C.,Animal Science Research Institute of Iran | EmamJomeh-Kashan N.,Islamic Azad University at Tehran | Chamani M.,Islamic Azad University at Tehran | And 2 more authors.
African Journal of Biotechnology | Year: 2012

The present study investigated the occurrence of autosomal recessive genetic disease, citrullinaemia, in Khuzestan native cows and Iranian Holstein cattle. Genomic DNA was isolated from the blood of the cows (n = 330). The polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis was performed to identify carriers of this disease. Then to determine existence of mutant citrullinaemia allele, all cows were confirmed by DNA sequencing. This study showed that none of the cows were carriers or mutants of citrullinaemia deficiency. More attention is necessary to check bulls related to possibility of being citrullinaemia carrier. This is important for economical reason and citrullinaemia mutation and its recessive hereditary disorder. However, no carrier was observed in this study, and for more detection of genetic disorders, it seems that a wide screening program is needed. © 2012 Academic Journals. Source


Danesh Mesgaran M.,Ferdowsi University of Mashhad | Mohammadabadi T.,Ramin Agriculture and Natural Resource University
Journal of Animal and Veterinary Advances | Year: 2010

This experiment was conducted to investigate the effect of fat content (high: 165 g fat kg-1 DM and low: 25 g fat kg-1 DM) of sodium hydroxide (40 g kg-1 DM) or formaldehyde (3 and 6 g kg-1 DM) treated sunflower meal on in vitro gas production parameters used mediums containing isolated rumen microorganisms including total rumen microbiota (TM), bacteria (B), protozoa (P) or fungi (F). Results showed formaldehyde (both applied concentrations) caused a significant reduction in the rate and gas production from fermentable fraction of sunflower meal samples by the isolated microbial groups. Sunflower meal with high fat concentration treated with NaOH had the highest gas production (p<0.05) when fermented by the rumen isolated micro-biota (193, 33, 89 and 175 mL 500 mg DM sample for TM, B, P and F, respectively). Gas produced from the chemically treated or untreated high fat containing sunflower meal was more than the low fat content samples. Therefore, it was concluded both fat concentration and chemical treatments used in the present study may affect the fermentation potential of sunflower meal as evaluated by the applied in vitro procedure. In addition, in vitro gas production of high and low fat content sunflower meal by isolated rumen microbiota fractions are influenced by formaldehyde and NaOH treatments. © Medwell Journals, 2010. Source


Soleymani A.,Islamic Azad University at Khorasgan | Shahrajabian M.H.,Ramin Agriculture and Natural Resource University | Naranjani L.,Islamic Azad University
Journal of Food, Agriculture and Environment | Year: 2011

Sustainability of Iran agriculture may require change from predominant application of high amount of nitrogen fertilizers. In order to investigate the changes of yield and yield components of three cultivars of berseem clover as cover crops intercropped with forage corn in different levels of nitrogen starter fertilizer, an experiment was conducted in 2010, at Research Farm, Faculty of Agriculture, Islamic Azad University, Khorasgan Branch (Isfahan). A factorial layout within randomized complete block design with 3 replications was used. Cultivars were Karaj, Sacromont and Multicut, and nitrogen levels included 0, 40 and 60 kg/ha. The nitrogen fertilizer was provided from urea source (46% pure N). Berssem cultivars were cultivated between rows of forage corn. Cultivar had significant effect on plant height, nitrate and phosphorus content. Nitrogen fertilizer had significant influence on plant height, total fresh yield, nitrate and phosphorus content. Nitrate and phosphorus content were significantly influenced by interaction between cultivar and nitrogen. The highest plant height, total fresh yield, phosphorus and potassium content were related to Multicut. The maximum nitrate content was also obtained by Multicut, but the highest protein and organic matter was related to Karaj. The highest plant height, total fresh yield, phosphorus and potassium content were related to Multicut. The maximum nitrate content was also obtained by Multicut, but the highest protein and organic matter content was related to Karaj. The maximum plant height, total fresh yield, total dry yield, protein content and potassium percentage were related to application of 60 kg N/ha. The highest nitrate content was also obtained by this treatment. The maximum phosphorus percentage and organic matter content were related to application 40 kg N/ha and no application of nitrogen fertilizer, respectively, but we can use 40 kg N/ha instead of 60 kg N/ha in low input farming system to reduce cost and nitrate content in plant. Source

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