List of Articles Fatemeh Torfi

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  1 - Investigation Response of Wheat Genotypes to Different level of Nitrogen Fertilizer, Crop Production, Seed Growth Trend and Correlation Between Traits
  Fatemeh Torfi
  BACKGROUND: Fertilizer management plays an important role for obtaining satisfactory yields and increase crop productivity. Nutrient management may be achieved by the involvement of organic sources, bio fertilizers, and micro-nutrients. OBJECTIVES: Current study was do More

  BACKGROUND: Fertilizer management plays an important role for obtaining satisfactory yields and increase crop productivity. Nutrient management may be achieved by the involvement of organic sources, bio fertilizers, and micro-nutrients. OBJECTIVES: Current study was done to determine the effect of different level of nitrogen and wheat genotypes on agronomic traits, seed growth rate and correlation between characteristics. METHODS: Statistical pattern was split plot experiment according randomized complete block design with three replications. Main factor included four levels of nitrogen fertilizer (N1=60, N2=120, N3=180, N4=240 kg.ha-1, Urea Source) and sub plots consisted four genotypes of Bread (V1: S85-19 as line, V2: Chamran) and Durum (V3: Behrang, V4: Dena) Wheat. RESULT: Result of analysis of variance indicated effect of nitrogen fertilizer (instead number of seed per spikelet and 1000-seed weight), genotypes (instead number of seed per spikelet) and interaction effect of treatments (instead number of spikelet per spike, number of seed per spikelet, 1000-seed weight and harvest index) on all measured traits was significant. Correlation between traits showed the significant correlation between biologic yield (r=0.97**), seed weight (r=0.92**), harvest index (r=0.91**), number of seed per m2 (r= 0.77**), number of seed per spike (r= 0.75**), number of seed per spikelet (r= 0.71**), rate of current photosynthesis (r= 0.69**), rate of redistribution (r= 0.66**), number of spike per m2 (r= 0.62*), number of spikelet per spike (r= 0.59*), contribution of current photosynthesis (r= 0.59*), efficiency of current photosynthesis (r= 0.54*) and seed yield was observed. CONCLUSION: The highest grain filling rate belonged to use 240 and 180 kg.ha-1 nitrogen fertilizer and Chamran genotype at 27 days after anthesis. Manuscript profile
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  2 - Evaluation of Nitrogen Fertilizer on Yield and Yield Components of Bread and Durum Wheat Genotypes
  Fatemeh Torfi
  The present study aimed at investigating the effect of different levels of nitrogen on yield and yield components of bread and durum wheat. To this end the experiment was conducted in 2010-2011 in south west of Iran as split plots based on randomized complete block desi More

  The present study aimed at investigating the effect of different levels of nitrogen on yield and yield components of bread and durum wheat. To this end the experiment was conducted in 2010-2011 in south west of Iran as split plots based on randomized complete block design with three replications. Main plot included four levels of nitrogen 60, 120, 180, 240 kg.ha-1 and the sub plot included four wheat genotypes (Chamran, S-85-19, Dena, and Behrang). The results showed that effect of nitrogen fertilizer on biological yield and grain yield was significant at 1% level and on the number of spike per area unit, number of spikelet per spike, number of grain per area unit, 1000-grain weight, and harvest index at 5% probability level was significant. The highest grain yield and biological yield by 554.60 and 1271 g.m-2, belonged to treatment with application of 240 kg.ha-1 nitrogen, respectively. The highest harvest index by 46.71% belonged to the control treatment. Finally, the results indicated that among the genotypes, the highest number of grains per spike by 30 grain belonged to Dena cultivar and highest grain yield, biological yield, and harvest index by 524.34, 1168.80 g.m-2, and 45.42% belonged to Chamran cultivar, respectively Manuscript profile
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  3 - Assess Effect of Different level of Nitrogen Fertilizer on Redistribution, Efficiency and Contribution of Redistribution and Current Photosynthesis of Wheat Genotypes
  Fatemeh Torfi
  BACKGROUND: Management of nutrients, especially nitrogen, in order to wheat economic production and maintain sustainable agriculture to provide food security, is considered to have an important priority. Fertilizer management plays an important role for obtaining satisf More

  BACKGROUND: Management of nutrients, especially nitrogen, in order to wheat economic production and maintain sustainable agriculture to provide food security, is considered to have an important priority. Fertilizer management plays an important role for obtaining satisfactory yields and increase crop productivity. OBJECTIVES: This research was done to evaluate response of crop production and agrophysiological traits of wheat genotypes to apply different level of nitrogen fertilizer. METHODS: Current study was conducted according split plots experiment based on randomized complete block design with three replications. Main factor included four levels of nitrogen fertilizer (N1=60, N2=120, N3=180, N4=240 kg.ha-1) and sub plots consisted four genotypes of Bread (V1: S85-19 as line, V2: Chamran) and Durum (V3: Behrang, V4: Dena) Wheat. RESULT: According result of analysis of variance effect of different level of nitrogen fertilizer, genotypes and interaction effect of treatments on all studied traits was significant at 5% probability level. Evaluation mean comparison result of interaction effect of treatments on all measured traits revealed the highest amount of seed yield (610 gr.m-2), number of spike per square meter (1010), rate of redistribution (162.97 gr.m-2), efficiency of redistribution (0.24 gr.gr-1), contribution of redistribution (50.50%), rate of current photosynthesis (737.67 gr.m-2), efficiency of current photosynthesis (0.95 gr.gr-1) and contribution of current photosynthesis (83.50%) were noted for 180 kg.ha-1 nitrogen fertilizer and Chamran genotype and lowest amount of mentioned traits belonged to nonuse of fertilizer and S-85-19 line treatments. CONCLUSION: Finally according result of current study application 180 kg.ha-1 nitrogen fertilizer and Chamran genotype had the maximum amount of studied traits and it can be advice to producers in studied region. Manuscript profile