List of Articles Mojtaba Alavifazel

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  1 - Assessment Effect of Different level of Nitrogen Fertilizer (Urea Source) and Interval between Irrigation Round on Crop Production of Sorghum (Sorghum bicolor L., cv. Speed feed)
  Bahareh Jahangiri Mojtaba Alavifazel Mohamad Reza Dadnia
  BACKGROUND: Nutrients play a very important role in chemical, biochemical, physiological, metabolic, geochemical, biogeochemical, and enzymatic processes. Innovations for saving water in irrigated agriculture and thereby improving water use efficiency are of paramount i More

  BACKGROUND: Nutrients play a very important role in chemical, biochemical, physiological, metabolic, geochemical, biogeochemical, and enzymatic processes. Innovations for saving water in irrigated agriculture and thereby improving water use efficiency are of paramount importance in water-scarce regions. Conventional deficit irrigation is one approach that can reduce water use without causing significant yield reduction. OBJECTIVES: This study is aimed to examine the changes of crop production of sorghum in response to apply different interval irrigation round and urea fertilizer. METHODS: A farm research was arranged via split plot experiment based on the randomized complete block design with three replications in 2012. Main plots were included apply three levels of interval between irrigation (I1: 8 day; I2: 12 day; I3: 16 day) and the sub plots consisted three level of urea fertilizer (N1: 200, N2: 300, N3: 400 kg.ha-1). RESULT: According result of analysis of variance effect of different level of urea fertilizer, irrigation regime and interaction effect of treatments on all studied traits (instead harvest index) were significant. Evaluation mean comparison result of interaction effect of treatments on all measured traits revealed the highest amount of seed yield (817 gr.m-2), 1000-Seed weight (33.38 gr), Fresh forage yield (11829 gr.m-2) and total dry weight (3071 gr.m-2) were noted for 8 day interval between irrigation round and 400 kg.ha-1 urea fertilizer and lowest amount of mentioned traits belonged to 16 day interval between irrigation round and 200 kg.ha-1 urea fertilizer treatment. CONCLUSION: Finally according result of current research application 8 day interval between irrigation round and 400 kg.ha-1 urea fertilizer had the highest amount of studied traits and it can be advice to producers in studied region. Manuscript profile
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  2 - Leaf Chlorophyll Changes and Morphological Features of Quinoa (Chenopodium quinoa) Cultivars by P-Zn Ratios in Greenhouse Condition
  Anise Jorfi Mojtaba Alavifazel Abdolali Gilani Mohammad Reza Ardakani
  BACKGROUND: Sufficient nutrients supplying is one of the most important factors in realizing the crops potential performance and achieving high yield, which in conventional agriculture is provided by using chemical fertilizers. OBJECTIVES: This study aims to evaluate t More

  BACKGROUND: Sufficient nutrients supplying is one of the most important factors in realizing the crops potential performance and achieving high yield, which in conventional agriculture is provided by using chemical fertilizers. OBJECTIVES: This study aims to evaluate the root and shoot structure of quinoa cultivars in response to the phosphorus and zinc sulfate fertilizers application in the Research, Agricultural Education and Natural Resources Center of Khuzestan province. METHODS: The statistical model was factorial based on completely randomized design (CRD) with three factors including the use of triple superphosphate fertilizer at four amounts (0, 6, 12, 18 mg. kg-1 soil weight), foliar application of zinc sulfate in three concentrations (water without zinc sulfate (control), foliar application at 4 and 8 g. L-1 concentrations) and three quinoa cultivars (Giza 1, Q26, Titicaca) in P.V.C pots and in three replications. RESULT: The simultaneous effect of experimental factors on chlorophyll index and shoot morphological traits was significant. Root length to shoot length ratio was affected by the main effect of P2O5 fertilizer and the cultivars differences, and the effect of zinc sulfate was not significant on this trait. In most of the analysed traits, the 4 g. L-1 concentration of zinc sulfate was more effective than the 8 g. L-1 concentration. The total grain weight of the three cultivars was affected by the amount of fertilizer, and the best values of this attribute belonged to the 18 mg. kg-1 triple superphosphate and 4 g. L-1 concentration of zinc sulfate in Q26 cultivar. This trait (TGW) showed the most positive correlation with the plant height, number of lateral branches, stem diameter, and chlorophyll index. CONCLUSION: Based on the results of this experiment, the optimal application of P-Zn ratios by reducing the antagonism effects led to the root and shoot structure development, and increased quinoa cultivars production. Manuscript profile
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  3 - Feasibility Study on Reducing Lead and Cadmium Absorption in Sweet Basil (Ocimum basilicum L.) With Using Active Carbon
  Solmaz Divani Farzad Paknejad Hossein Ghafourian Mojtaba Alavifazel Mohammad Reza Ardakani
  In order to reducing the risk of heavy metals concentration in plant tissues which areamong the edible plants by human, find the active carbon ability in heavy metals removalfrom Lead (Pb) and Cadmium (Cd) contaminated soils and its effect on growthand nutrient absorpti More

  In order to reducing the risk of heavy metals concentration in plant tissues which areamong the edible plants by human, find the active carbon ability in heavy metals removalfrom Lead (Pb) and Cadmium (Cd) contaminated soils and its effect on growthand nutrient absorption of Sweet basil, this greenhouse experiment was conducted inthe faculty of agriculture, Islamic Azad University, Karaj branch, Iran. The experimentwas conducted in factorial in the form of a completely randomized design with fourreplications and three treatments: different levels of active carbon (0. 5, 10, 15 and 20g.kg-1soil), Lead (0 and 4 g.kg-1 soil) and Cadmium (0 and 0.08 g.kg-1 soil). Resultsshowed that active carbon significantly affected the sweet basil trials. It was observedthat the Pb and Cd absorption was reduced in soil contaminated with heavy metalwhen active carbon was applied. The optimum results were obtained through the applicationof active carbon in 20 g.kg-1 soil treatment. Totally, our results showed that activecarbon could improve the basil growth in heavy metal contaminated soil by inhibitionof Pb and Cd translocation into the plant tissues. Moreover, it was found thatSweet basil has a high ability in heavy metals removals in polluted regions. Manuscript profile
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  4 - Evaluation Effect of Different level of Nitrogen and Cutting Height on Morphological Traits, Seed Protein Content and Prussic Acid Concentration of Sorghum ( Sorghum bicolor L., cv. Speed feed)
  Zahra Gholiporkahyash Mojtaba Alavifazel Mohamad Reza Dadnia
  BACKGROUND: Nitrogen is a crucial component of plant nutrition, and its deficiency limits productivity of crops more than any other element. To manage the sorghum crop for achievement of maximum forage production, the farmer should be concerned about nitrogen requiremen More

  BACKGROUND: Nitrogen is a crucial component of plant nutrition, and its deficiency limits productivity of crops more than any other element. To manage the sorghum crop for achievement of maximum forage production, the farmer should be concerned about nitrogen requirement and plant height. OBJECTIVES: This research was carried out to evaluate response of morphological traits, seed protein content and prussic acid concentration of Sorghum to different level of urea fertilizer and cutting height. METHODS: Current study was conducted via split plot experiment based on randomized complete blocks design with three replications along 2012 year. The main factor included three level of urea fertilizer (200, 300 and 400 kg.ha-1) and three level of cutting height (7, 12 and 14 cm) belonged to subfactor. RESULT: Result of analysis of variance revealed effect of different level of urea fertilizer, cutting height and interaction effect of treatments on all studied characteristics was significant at 5% probability level. Assessment mean comparison result of interaction effect of treatments on all measured traits indicated the maximum amount of seed yield (693 gr.m-2), panicle length (15.43 cm), stem diameter (15.90 cm), plant height (174.73 cm), prussic acid concentration (276.96 ppm) and seed protein concentration (10.90%) were noted for 400 kg.ha-1 urea and 7cm of cutting height and lowest amount of mentioned traits belonged to 200 kg.ha-1 urea and 17cm of cutting height treatment. CONCLUSION: Generally result of studied research revealed 400 kg.ha-1 urea fertilizer and 7cm cutting height had the highest amount of studied characteristics and it can be advice to farmers. Manuscript profile
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  5 - Effect of Terminal Drought Stress on Seed Yield and Its Components of Rapeseed Cultivars
  Peyman Davami Mojtaba Alavi Fazel Davood Habibi Afshin Mozaffari
  BACKGROUND: Drought stress is known as the most important factor limiting the growth and crop production. Therefore, the selection of genotypes that has higher yield stability in good crops can play a significant role and impact in the development of rapeseed cultivatio More

  BACKGROUND: Drought stress is known as the most important factor limiting the growth and crop production. Therefore, the selection of genotypes that has higher yield stability in good crops can play a significant role and impact in the development of rapeseed cultivation with acceptable economic performance in the country.OBJECTIVES: Current study was carried out to assess effect of terminal drought stress on seed yield and its components of Rapeseed cultivars.METHODS: An experiment was performed as a factorial split plot and in the form of a randomized complete block design with three replications. Irrigation treatment included normal irrigation (irrigation after 80 mm of evaporation from Class A pan) and irrigation cut-off from the pod formation stage onwards in the main plots, planting dates including September 26 and October 26 and four rapeseed cultivars including Tassilo, Elvise, Neptune, and Okapi were evaluated in a factorial form in sub-plots.RESULT: The results revealed that irrigation cut-off and delay in planting date had a significant effect on reducing plant height, number of sub-branches per plant, number of pods per plant, number of grains per pod, and 1000-grain weight. Cultivars were significantly different in terms of all evaluated traits. Elvise and Neptune cultivars had the highest grain yield with (3346) and (3220 kg.ha-1), respectively, under normal irrigation conditions and with a mean of (3211) and (3081 kg.ha-1), respectively, under irrigation cut-off conditions. This advantage was mainly due to an increase in the tank capacity of the yield components. Therefore, Elvise and Neptune cultivars can be introduced with acceptable production stability under normal irrigation conditions and water stress conditions after silique formation.CONCLUSION: Among the studied cultivars of rapeseed, under normal irrigation and cut-off of irrigation conditions on both planting dates of Sep. 26 and Oct.26, Elvise cultivar showed the highest grain yield per unit area of production and good compatibility. The mentioned cultivar can be recommended in the areas similar to the studied area (Karaj), where there is a possibility of water stress in the late stages of growth. Manuscript profile
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  6 - Study Effect of Supplemental Nutrition on Yield, Yield Components and Grain Protein Content of Wheat Cultivars under Drain Water Irrigation
  Sardar Pasha Mojtaba Alavifazel Alireza Jafarnejadi Shahram Lack Mani Mojaddam
  BACKGROUND: The macro and micronutrients play an important role in the crop nutrition and thus they are important for achieving higher yields, better growth and development of plants.OBJECTIVES: This study aimed to investigate the effect of supplemental nutrition (chemi More

  BACKGROUND: The macro and micronutrients play an important role in the crop nutrition and thus they are important for achieving higher yields, better growth and development of plants.OBJECTIVES: This study aimed to investigate the effect of supplemental nutrition (chemical and organic fertilizer) on quality parameters and grain yield of wheat cultivars under irrigation condition with drain water of farms.METHODS: This experiment was carried out as a split-split plot in a randomized complete block design with three replications. The treatments included irrigation at two levels of drain water and pure water irrigation in the main plot, fertilizer compounds at six levels, growth promotion and high potassium in sub-plot and sub-sub plot including wheat cultivars (Mehregan, Shoosh, and Chamran2).RESULT: The results indicated that the traits of grain yield, harvest index, number of tillers, number of spikelet per spike, number of grain per spike were affected by fertilizer treatment and grain yield, biological yield, and harvest index were affected by irrigation. The number of grains per spike in irrigation with pure water had a higher average. The highest thousand grain weight and the number of tillers were obtained in Chamran2 cultivar. The highest grain protein content was achieved in Mehregan cultivar. The results of correlation analysis revealed that the number of tillers had a significant direct correlation with the variables of number of spikelet per spike, number of grains per spike, and grain yield. In examining the interaction of treatments, the highest grain yield was obtained in the application of humic acid seed inoculation and growth promotion of Shoosh wheat cultivar under drain water irrigation.CONCLUSION: the highest amounts of grain yield were obtained approximately 6925 kg per hectare by applying humic and growth-promoting fertilizers in irrigation conditions with drain water of fields in Shoosh wheat cultivar. Manuscript profile
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  7 - Effect of Biological and Chemical Fertilizers on Yield and Yield Components of Some Maize Hybrids in South West of Iran (Shoushtar Region)
  Ayeh Makvandi Mojtaba Alavifazel Shahram Lack
  In order to investigate effect of application of Nitroxin and nitrogen chemical fertilizer on yield and yield components, split plot experiment on the basis of Randomized Complete Block Design with four replications was conducted. Four levels of Nitrogen fertilizer (N1: More

  In order to investigate effect of application of Nitroxin and nitrogen chemical fertilizer on yield and yield components, split plot experiment on the basis of Randomized Complete Block Design with four replications was conducted. Four levels of Nitrogen fertilizer (N1: 100% chemical fertilizer, N2: 75% chemical fertilizer + 100% biological fertilizer, N3: 50% chemical fertilizer + 100% biological fertilizer, N4: 25% chemical fertilizer + 100% biological fertilizer) in main plots and three Maize Hybrids (H1: S.C. 704, H2: Mobin, H3: Karun 701) in subplots were studied. Results showed that the highest grain yield belonged to 50% chemical fertilizer + 100% biological fertilizer and Karun hybrid, and the lowest one belonged to 75% chemical fertilizer + 100% biological fertilizer and S.C. 704. Maximum biological yield belonged to 50% chemical fertilizer + 100% biological fertilizer and Karun hybrid. The highest harvest index belonged to 100% chemical fertilizer and Mobin hybrid and the minimum harvest index in treatment of 75% chemical fertilizer + 100% biological fertilizer and S.C. 704 hybrid was seen. 1000-grain weight in treatment of 100% chemical fertilizer and Mobin hybrid have maximum rate. Maximum number of grain per ear and grain per row belonged to the treatment with 100% chemical fertilizer and S.C. 704 hybrid. In maize which require high nutrition for optimal yield, Biological fertilizer application alone cannot replace chemical fertilizers, but they can be used as supplements for chemical fertilizers. Finally application of N fertilizer level at 50% chemical fertilizer + 100% biological fertilizer and Karun hybrid were recommended. Manuscript profile
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  8 - Response of Fresh Forage, Dry Matter and Yield Components of Sorghum to Different level of Nitrogen and Cutting Height
  Zahra Gholiporkahyash Mojtaba Alavifazel Mohammad Reza Dadnia
  BACKGROUND: Fertilizer management plays an important role for obtaining satisfactory yields and to increase crop productivity. Nitrogen is generally a limiting nutrient in crop production, and especially in sorghum, as it has been said to be the most responsive nutrient More

  BACKGROUND: Fertilizer management plays an important role for obtaining satisfactory yields and to increase crop productivity. Nitrogen is generally a limiting nutrient in crop production, and especially in sorghum, as it has been said to be the most responsive nutrient for its production. OBJECTIVES: Current study was conducted to assessment effect of urea fertilizer and cutting height on seed yield, its components and harvest index of Sorghum. METHODS: This research was carried out via split plot experiment based on randomized complete blocks design with three replications. The main factor included three level of urea fertilizer (200, 300 and 400 kg.ha-1) and three level of cutting height (7, 12 and 14 cm) belonged to subfactor. RESULT: According result of analysis of variance effect of urea fertilizer and cutting height on all measured traits (instead harvest index) was significant, but interaction effect of treatments on 1000-seed weight, fresh forage yield, harvest index, number of seed per panicle and number of fertile tiller was not significant. Mean comparison result of different level of urea fertilizer indicated that maximum amount of all measured traits belonged to 400 kg.ha-1 treatment. As for Duncan classification made with respect to different level of cutting height the highest amount of studied characteristics was for 7cm treatment. Evaluation mean comparison result of interaction effect of treatments revealed maximum seed yield (693 gr.m-2) was noted for 400 kg.ha-1 urea fertilizer and 7cm cutting height and lowest one (480 gr.m-2) belonged to 200 kg.ha-1 urea and 17cm treatment. Similar result was found for other traits. CONCLUSION: According result of current study 400 kg.ha-1 urea fertilizer and 7cm cutting height had the highest amount of studied traits, so it can be advice to producers. Manuscript profile
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  9 - Study of Irrigation Halt and Humic Acid on Seed Yield, Its Components and Correlation between Traits of Red Bean
  Shadi Sadat Mohjerani Mojtaba Alavifazel Hamid Madani Shahram Lack Adel Modhej
  BACKGROUND: Humic acid is a natural polymeric composition which is produced as a result of decaying organic matters in soil, peat and lignin to increase crop product. OBJECTIVES: Assessment the effect of different irrigation regime and humic acid on red bean production More

  BACKGROUND: Humic acid is a natural polymeric composition which is produced as a result of decaying organic matters in soil, peat and lignin to increase crop product. OBJECTIVES: Assessment the effect of different irrigation regime and humic acid on red bean production and correlation coefficient between measured traits. METHODS: Current research was done via split plots experiment based on completely randomized blocks design with three replications. Main factor consisted irrigation halt at three levels (I1: Complete irrigation or control, I2: halt irrigation at flowering stage, I3: halt irrigation at pod stage) and humic acid foliar application dosages at three levels (H1: Control, H2: using 1.5 L.ha-1, H3: 3 L.ha-1 humic acid) belonged to subplots. RESULT: The effect of irrigation halt and humic acid on biological yield, seed yield, harvest index, number of pods per plant and seeds per pod and 100 seed weight were significant. Mean comparison result of interactions effect of treatments revealed the highest seed yield (3758.4 kg.ha-1) was in complete irrigation with 3 L.ha-1 humic acid consumption and the lowest one (2170.1 kg.ha-1) belonged to irrigation halt at flowering stage. So, this reduction in the irrigation at flowering stage was about 6% by consumption of 3 L.ha-1, and was improved to 38%. CONCLUSION: flowering stage is the most critical stage of growth of red beans in response to irrigation regimes and foliar application of humic acid could be used as a new method to decrease damage caused by halt irrigation, so halt irrigation in pod stage with use 3 L.ha-1 humic acid is recommended to achieve maximum yield. Manuscript profile
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  10 - Assess Correlation between Traits Affected Different level of Nitrogen Fertilizer (Urea Source) and Interval between Irrigation Round of Sorghum
  Bahareh Jahangiri Mojtaba Alavifazel Mohamad Reza Dadnia
  BACKGROUND: Knowing about grain yield issue and its components plays an important role for being successful in evaluative programs. Success in breeding and having fruitful varieties of agricultural products with a higher quality depends on knowledge about genetic grain More

  BACKGROUND: Knowing about grain yield issue and its components plays an important role for being successful in evaluative programs. Success in breeding and having fruitful varieties of agricultural products with a higher quality depends on knowledge about genetic grain yield controlling and its relation with seed yield components, also to phonologic traits and forage quality. OBJECTIVES: This study was conducted to predict the most effective traits on sorghum seed yield according correlation between characteristics in response to apply different interval irrigation round and urea fertilizer. METHODS: To investigation the effect of different level of Nitrogen fertilizer and irrigation method on crop production of Sorghum (Speed feed cultivar) a farm research was arranged via split plot experiment based on the randomized complete block design with three replications in 2012. Main plots were included apply three levels of interval between irrigation (I1: 8 day; I2: 12 day; I3: 16 day) and the sub plots consisted three level of urea fertilizer (N1: 200, N2: 300, N3: 400 kg.ha-1). RESULT: According result of analysis of variance effect of different level of irrigation regime, urea fertilizer and interaction effect of treatments on all measured traits (instead harvest index) was significant. Simple correlation coefficients between traits were estimated according to Pearson coefficient. The most positive and significant correlation was observed in total dry weight (r=0.91**), fresh forage yield (r=0.85**) and number of seed per panicle (r=0.79**). The traits of Panicle length (0.69*), 1000-seed weight (r=0.67*), number of racemes in panicle (0.64*) number of fertile tiller (r=0.61*) and seed protein content (0.51*) had correlation with the seed yield was significant at 5% probability level. CONCLUSION: According to the results of this research, traits of total dry weight, fresh forage yield and number of seed per panicle, had the most positive-direct effects on Sorghum seed yield can be proposal to plant breeder to more studied process such as stepwise regression and path analysis. Manuscript profile