List of Articles علی مرمضی

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  1 - Effect of Integrated Management of Biological and Chemical Nitrogen Fertilizers with Different Plant Densities on Seed and Oil Percentage of Sunflower (Helianthus annuus L.) under Water Deficit Stress
  Hassan Rahmani Mani Mojaddam Alireza Shokuhfar Mojtaba Alavi Fazel Shahram Lak
  10.30495/JCEP.2022.1919016.1754
  This experiment was carried out in split plots based on randomized complete block design with three replications during 2015-2016 and 2016-2017 cropping years in Khuzestan province. The main factor, consisted as water shortage stress with four levels of irrigation after More

  This experiment was carried out in split plots based on randomized complete block design with three replications during 2015-2016 and 2016-2017 cropping years in Khuzestan province. The main factor, consisted as water shortage stress with four levels of irrigation after depletion of 45, 60, 75 and 90% of plant usable water was optimal irrigation, mild stress, severe stress and very severe stress, respectively. The levels of 100% chemical fertilizer, 75% and 50% combination of chemical fertilizer with 100% nitroxin and plant density at three levels of 57, 71 and 95 thousand plants per hectare were as sub-factors. The results showed that the interaction of water shortage stress, combination of nitrogen biochemical and chemical fertilizer and plant density had a significant effect on grain yield, 1000-grain weight, number of seeds per head, harvest index and biological yield. The highest seed yield was obtained from the optimal irrigation treatment by combining 75% of chemical and biological fertilizers and a density of 95,000 plants per hectare, which showed a 75% increase compared to the very severe moisture stress treatment with 75% of chemical and biological fertilizers and a density of 57,000 plants per hectare. The interaction of moisture stress and density and fertilizers on oil percentage and leaf area index was significant. In general, the use of nitrogen from both chemical and biological sources at a density of 95,000 plants per hectare may reduce the effects of moisture stress on the sunflower plant in the experimental condition. Manuscript profile
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  2 - The Effect of Foliar Application of Gibberellin and Kinetin Hormones on Morphological, Biochemical and Functional Characteristics of Maize (Zea mays L.) Hybrids
  Aghil Aalipour Tayeb Saki Nejad Shahram Lak Alireza Shokuhfar Mojtaba Alavifazel
  10.30495/JCEP.2023.1913609.1728
  In agronomic management of corn, in addition to providing suitable hybrid seeds, other factors such as plant hormones are also important. Therefore, this study was conducted to investigate the effect of hybrid seed type and leaf application of gibberellin and kinetin ho More

  In agronomic management of corn, in addition to providing suitable hybrid seeds, other factors such as plant hormones are also important. Therefore, this study was conducted to investigate the effect of hybrid seed type and leaf application of gibberellin and kinetin hormones on growth, biochemical and yield indices of corn in Ahvaz. The basic design of randomized complete blocks was done as a split plot in two cropping years with four replications. Single-grain corn hybrids 704 (late ripening), 616 (medium ripening) and 71AS (medium ripening) were studied as the main factor and kinetin/gibberellin foliar application at three levels of 0, 150/200 and 300/400 ppm as the secondary factor. The results showed that the simple effect of hybrid type and kinetin/gibberellin foliar application on plant height, stem diameter, shoot dry weight, 1000-seed weight, biological yield, grain yield, harvest index, chlorophylls a, b and total and the percentage of grain protein was statistically significant. Also, the effect of kinetin/gibberellin foliar application × hybrids on plant height, stem diameter, shoot dry weight, 1000-seed weight, biological yield, grain yield, harvest index, chlorophylls a, b and total and hybrid interaction in kinetin/gibberellin foliar application had a statistically significant effect on leaf area index per year. The results showed that the highest values of the studied traits in both cropping years were obtained in single cross 704 maize and after kinetin/gibberellin foliar application at 150-200 ppm. The kinetin/gibberellin ratio of 150/200 ppm in all hybrids had a better effect on various morphological and biochemical traits. The highest biological yield, grain yield and harvest index, which are very important traits, were related to single-cross corn hybrid with hormone foliar application at the rate of 150/200 ppm. According to the obtained results, the use of single-cross corn hybrid of corn and foliar application of maize plants with gibberellin and quinine in the ratio of 150/200 ppm is recommended. Manuscript profile
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  3 - Effect of Integrated Application of Biochar and Nitroxin on Growth Traits and Grain Yield of Cowpea (Vigna unguiculata) under Different Irrigation Regimes
  Seyed Afshin Moosavi AliReza Shokuhfar Shahram Lak Mani Mojaddam Mojtaba Alavifazel
  10.30495/JCEP.2023.1921202.1765
  According to Iranian water resource limitations it is mandatory to find water efficient strategies for crop production in accordance with reduction of chemical inputs. A split-factorial experiment was conducted in 2018 based on randomize complete block design with three More

  According to Iranian water resource limitations it is mandatory to find water efficient strategies for crop production in accordance with reduction of chemical inputs. A split-factorial experiment was conducted in 2018 based on randomize complete block design with three replications to investigate the effects of biochar and nitroxin application on growth traits and yield of cowpea under different irrigation regimes. Experimental treatments were irrigation regimes (0, 90, 120 mm) evaporation from water pan class A which were considered as no stress, mild water stress and Sevier water stress, respectively. Irrigation treatments were arranged as main plot and three levels of biochar (0,4, 8 t.ha-1) and nitroxin (inoculated and no inoculated) considered as factorial subplots. Results showed that dry matter accumulation and relative crop growth rate exhibited a sigmoid pattern while leaf area and growth rate followed gaussian pattern. Based on model output DMTmax was 467 g.m-2 and RGRmax was 0/100 g, LAImax 3.65 and CGRmax was 12.6 g.m-2 which reach to 50% of final value in 55/9, 65.9, 40.5 and 31.7, respectively. Application 8 ton/ha biochar with nitroxxin resulted in 12% RWC and 10%, 27% improved nitrogen and phosphor status under severe stress condition. Irrigation at 120 mm evaporation caused 33% reduction of grain yield and nitroxin application at normal condition caused 19% increase in grain yield but at 120 mm evaporation it did not exhibit significant effect. Application of biochar at no stress condition led to 37% increase in grain yield and such changes reach to 29% at 120 mm evaporation from water pan class A. The highest grain yield (266 g.m-2) obtained from 8 t.ha-1 biochar at no stress condition and the maximum biological yield was obtained from 8 t.ha-1 biochar with nitroxin (809 g.m-2). Application of 8 t.ha-1 biochar incorporated with nitroxin could provide satisfactory yield for cowpea crop under water limited condition. Manuscript profile
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  4 - The Effect of Biochar and Humic Acid Rates on some Phophysiological Characteristics and Grain Yield SC704 Corn (Zea mays L.) Hybrid Under Water Deficit stress
  Armaghan Charkhab Many Mojaddam Shahram Lack Tayyeb Sakinejad Mohammad Reza Dadnia
  10.30495/jcep.2021.683381
  To evaluate the effect of different rates of biochar and humic acid applications on physiological characteristics and grain yield of single cross 704 hybrid corn under water deficit stress, a split split plot experiment based on a randomized complete block design with t More

  To evaluate the effect of different rates of biochar and humic acid applications on physiological characteristics and grain yield of single cross 704 hybrid corn under water deficit stress, a split split plot experiment based on a randomized complete block design with three replications, was conducted during two years (2017-19) at Ahvaz. The main plot devoted to water deficit stress, with three levels irrigation (after depleting 30, 40, and 50% of field capacity as optimum irrigation, moderate stress, and severe stress, respectively) and sub-plot to biochar with 2 levels, non-application of biochar (control) and application of 4 tons per hectare of biochar, and the sub-sub plots to humic acid with 4 levels non-application of humic acid (control), and application of 2, 4, and 6 liters per hectare of humic acid. The results showed that the interaction effect of water shortage by biochar stress and water shortage by humic acid stress on grain yield, 1000-grain weight, number of grains per ear, superoxide dismutase, chlorophyll index and catalase were significant at 1% probability level. Under severe stress conditions grain yield (36.54%), number of grain per ear (36%) and leaf area index (30.36%) decreased and activity of superoxide dismutase (37.7%) increased. Acidic acid had a significant effect on all traits under study. The highest grain yield (8995.18 kg.ha-1) was related to irrigation treatment after 40% depletion of field capacity and application of 4 tons per hectare of biochar. Based the results obtained application of 4 liters per hectare of humic acid under moderate moisture stress conditions, could be recommended in arid and semi-arid conditions to save water consumption and reduce the effects of water deficit stress. Manuscript profile
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  5 - Effect of Foliar Application of Magnesium and Potassium Sulfate on Morphological, Biochemical and Yield Characteristics of Maize (Zea mays L.) During Water Deficiet Stress
  Arman Sotoodeh Tayeb Saki Nejad Alireza Shokuhfar Shahram Lak Mani Majaddam
  Drought stress is one of the most important factors that limiting the growth and yield of plants. In recent years the use of various methods to reduce its negative effects has been considered by many researchers. This experiment was performed as a split plot in the form More

  Drought stress is one of the most important factors that limiting the growth and yield of plants. In recent years the use of various methods to reduce its negative effects has been considered by many researchers. This experiment was performed as a split plot in the form of randomized complete blocks with four replications in two years. The effect of foliar application of different ratios of magnesium and potassium on the morphological, biochemical and functional characteristics of maize (single cross cultivar 704) in different irrigation cycles (50, 75 and 100 mm evaporation from Class A evaporation pan) was evaluated. The results of analysis of variance showed that the interaction of irrigation and magnesium to potassium ratio on the characteristics of height, stem diameter, ear length, number of seeds per ear, potassium uptake, magnesium uptake, chlorophyll a, chlorophyll b, total chlorophyll, Carotenoids, proline, biological yield, grain yield and harvest index had a statistically significant effect. The results of the study of the effect of potassium and magnesium on morphological and biochemical changes in drought tolerance in maize (Single Cross 704 cultivar) showed that consumption of these elements significantly increased plant height, stem diameter, ear length, number of seeds per ear, uptake rate Potassium, magnesium uptake, chlorophyll a, chlorophyll b, total chlorophyll, carotenoids, proline, biological yield, grain yield and harvest index in water deficit conditions; So that the highest value of these traits in evapotranspiration conditions was 50 mm from the evapotranspiration pan and application of 200 kg of magnesium sulfate/ 300 kg of potassium sulfate. Also, foliar application of different concentrations of potassium sulfate and magnesium sulfate by increasing the uptake of potassium and magnesium, preserving leaf chlorophyll, resulting in more effective photosynthesis as well as increasing the concentration of proline in plant leaves, moderate the negative effects of water deficiency and corn tolerance to conditions. Improve water shortage. Manuscript profile
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  6 - Effect of Nitrogen Fertilizer Rates and Its Split Application on Yield and Nitrogen Use Efficiency of Quinoa (Chenopodium quinoa willd.) Cultivars
  Mahsa Mansouri Mojtaba Alavi Fazel Abdolali Gilani Shahram Lak Mani Mojdam
  10.30495/jcep.2021.687066
  To evaluate the effect of nitrogen rate and its split application on seed yield and nitrogrn use efficiency (NUE) of quinoa cultivars, experiments were performed during 2018-2019 and 2019-2020 growing seasons as factor split plot based on randomized complete block desig More

  To evaluate the effect of nitrogen rate and its split application on seed yield and nitrogrn use efficiency (NUE) of quinoa cultivars, experiments were performed during 2018-2019 and 2019-2020 growing seasons as factor split plot based on randomized complete block design with three repetitions at Khuzestan Agricultural and Natural Resources Research and Training Center Station. Experiment treatments were nitrogen fertilizer (0, 100, 200 and 300 kg.ha-1) as the main factor and four levels of split nitrogen fertilizer applications (50% basic + 50% six-leaf, 50% basic + 25% Six-leaf percentage + 25% mid-flowering, 25% basic + 50% six-leaf + 25% mid-flowering and 25% basic + 25% six-leaf + 50% mid-flowering) and three cultivars of quinoa (Gizat, Q26, Titicaca) as sub-plot. The results showed, SPAD, height plant, number of plant branches, number of panicules per area unit and seeds per panicule as influenced by nitrogen content × split × cultivare, interaction. The years× nitrogen rate×split application× cultivar intractions were significant on plant height, 1000 seed weight, seed yield, biological yields, harvest index and NUE. The highest seed yield under all different levels of nitrogen was related to cultivar Q26, in both years by the use of 200 kg of nitrogen, the highest seed yield in the first year belonged to at 25% base application + 50% at six-leaf stage+ 25% at mid-flowering stage and in the second year, to at 50% as base application+ 25% at six-leaf stage+ 25% mid-flowering stage. Highest NUE belonged to Gizal (52.8 g.kg-1) and Q26 (51.8 g.kg-1) cultvars from 200 kg.ha-1 nitrogen by split applications of 25% base + 25% at six-leaf stage+ 50% at mid-flowering stage, while in second year from 100 kg.ha-1 nitrogen. In general, climatic conditions and split application of fertilizer were effective roles in increasing the efficiency of nitrogen consumption. Thus by the use of proper management seed yield can be increased and the risk of its production decreased. Manuscript profile
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  7 - Growth Index, Yield and Yield Components of Quinoa (Chenopodium quinoa Willd) Cultivars Affected by Date and Method of Planting at Ahvaz Region
  Mehrnoosh Golabi Shahram Lak Abdolali Gilani Mojtaba Alavi Fazel Aslan Egdernezhad
  10.30495/JCEP.2022.1928721.1797
  The most important component compatible with climatic diversity in agriculture is the planting date, which has the greatest impact on the phenological characteristics of the plant. Planting date is determined based on cultivar and climate of each region. In order this s More

  The most important component compatible with climatic diversity in agriculture is the planting date, which has the greatest impact on the phenological characteristics of the plant. Planting date is determined based on cultivar and climate of each region. In order this study was conducted to investigate the effect of seed and transplanting method on yield and yield components of quinoa cultivars in different planting dates in Ahvaz climatic conditions. The experiment as a split split plot in a randomized complete block design with four replications in crop years 2018-2019 and 2019-2020. Planting date was taken as the main factor in four levels (22 October, 1 November, 11 November and 21 November) and sub factor including planting method (transplanting and seed planting) and sub-sub factor also Quinoa cultivars (Giza1, Q26 and Titicaca). The results showed that delay in planting date reduced growth index (22, 39 and 26% LAI, DM and CGR recpectively), days to flowering (21%) and grain yield components (number of panicles per plant (42%), number grain per panicle (26%) and 1000-grain weight (21%)), grain yield (63%) and harvest index (54%) in quinoa. The highest value of these traits was related to the date of first sowing (October 22) and it was also found that transplanting in early sowing date is weaker than seed sowing but in late sowing date is better than seed sowing and reduces the negative effects of late sowing. Among the studied cultivars, Q26 cultivar was more acceptable in terms of growth rate (LAI (4.87), DMT (637.3 g. m-2), CGR (18.58 g. m-2.day) and yield components (number of panicles per plant (9.72) and 1000-grain weight (4.81 g)) and grain yield (1813 kg. h-1) than the other two cultivars. The highest grain yield (3058 kg.ha-1) belonged to Q26 cultivar on 30 October planting and 22 October planting and seed sowing (3148 kg.ha-1) and the lowest grain yield (769 kg.ha-1) belonged to Titicaca cultivar on 11 and 21 November planting. In general, it was observed that the sowing date in early autumn was suitable for planting different cultivars of quinoa in Khuzestan province due to the longer growing season and Transplantation at this date of sowing did not have much advantage in terms of yield compared to seed sowing, but in the date of delayed sowing reduces the negative effects. Manuscript profile
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  8 - Evaluation of Root Growth Dynamics and Yield Components of Quinoa (Chenopodium quinoa) Cultivars by Changing Phosphorus and Zinc Levels
  Anise Jorfi Mojtaba Alavifazel Abdolali Gilani Mohammad Reza Ardakani Shahram Lack
  10.30495/JCEP.2023.1933283.1810
  Proper distribution of plant root facilitates the uptake of nutrients and improves crop yields. This study aims to evaluate the root and shoot structure of quinoa cultivars in response to the application of phosphorus and zinc in the Research, Agricultural Education and More

  Proper distribution of plant root facilitates the uptake of nutrients and improves crop yields. This study aims to evaluate the root and shoot structure of quinoa cultivars in response to the application of phosphorus and zinc in the Research, Agricultural Education and Natural Resources Center of Khuzestan province in a factorial design with three factors including the use of triple superphosphate fertilizer at four levels (0, 6, 12, 18 mg.kg-1 soil weight), foliar application of zinc sulfate in three amounts (water without zinc sulfate (control), foliar application at 4 and 8 per thousand concentrations) and three quinoa cultivars (Giza 1, Q26, Titicaca) were performed in pot and in three replications. The results showed that root parameters such as root dry weight, root width, root diameter, distance from the first branch to the tip root, and the weight ratio of root to shoot were affected by phosphorus fertilizer levels and quinoa cultivars (P≤0.01) and foliar application of zinc sulfate had a significant effect only on root dry weight, root width, distance from the first branch to the root tip, root density, root weight to shoot weight, and aerial part parameters. Q26 cultivar was identified as the best cultivar in terms of root structure development, which at 18 mg.kg-1 phosphorus levels and 4 per thousand zinc sulfate concentration had a maximum root dry weight (3.23 g.plant-1), root width (18.06 cm) and distance from the first branch to the root tip (53.23). At these levels of element consumption, the highest number of grains per plant (4542) were obtained in cultivar Q26. Based on the experiment results, the optimal level of elements by reducing antagonistic effects and increasing synergistic effects of P and ZnSO4 led to the root structure development, improved element uptake and increased production components of quinoa cultivars. Manuscript profile
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  9 - Effect of Azotobacter and Nitrogen Fertilizer Levels on Agro-physiological Traits and Yield of Safflower (Carthamus tinctorius L.) Genotypes under Different Moisture Conditions
  Abbas Soleimanifard Mani Mojaddam Shahram Lack Mojtaba Alavifazel
  10.30495/jcep.2022.689790
  This study was to investigate the phenological, physiological traits, seed yield and oil yield of six safflower genotypes under drought stress and non-stress conditions in two independent experiments. Each of the experiment was a factorial with randomized complete block More

  This study was to investigate the phenological, physiological traits, seed yield and oil yield of six safflower genotypes under drought stress and non-stress conditions in two independent experiments. Each of the experiment was a factorial with randomized complete block design with three replications during cropping seasons of 2015-16 and 2016-17 at Sarabela Agricultural Research Station in ILAM province. In one experiment under non stress condition, irrigation was based on the need of the plant, while the in the other experiment, plant growth was as rainfed where rainfalls was enough. The total amount of precipitation during the plant growth period in 2015-16 and 2016-17 were 410.7 and 388.5 mm, respectively, but it occurred with inappropriate ditribution during the growing season. Experimental treatments consisted of six  safflower genotypes plus inoculation of seeds with Azotobacter and use of urea fertilizer application with four levels: 1- no fertilizer application (as control), 2- Azotobacter seed inoculation, 3- Azotobacter seed inoculation + 50% nitrogen from urea source and 4- to 100% nitrogen from urea fertilizer based on soil testing recommendation. The results showed that nitrogen source and genotype were significantly affected all traits both under drought and non-stress conditions. Under drought stress conditions, the highest grain yield belonged to Sina genotype by using 100% nitrogen fertilizer and Azotobacter + 50% nitrogen fertilizer treatments (with mean yield of 1408 and 1336 kg.ha-1 reapectively), which were not significantly different. Under non-stress conditions, the highest grain, with mean yield of 2185 kg.ha-1, was attributed to PI-306974 genotype with 100% nitrogen fertilizer treatment. Thus, this genotype, under non-stress conditions, by using 100% nitrogen fertilizer for maximum yield of safflower and under drought stress, it was Sina genotype by using 50% nitrogen fertilizer with Azotobacter can be recommanded to the experimental region. Manuscript profile
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  10 - Response of Physiological and Biochemical Parameters of Maize (Zea mays L.) to the Application of Zinc and Iron at Irrigation Cutoff Conditions
  Mojtaba Afshari Ahmad Naderi Mani Mojadam Shahram Lak Mojtaba Alavifazel
  10.30495/jcep.2022.689804
  This experiment was conducted to evaluate the effect of micronutrients on physiological, biochemical and functional characteristics of the of SC704 hybrid maize at water deficit condition during two cropping years of 2016-2017 and 2017-2018 at Experimental Farm in north More

  This experiment was conducted to evaluate the effect of micronutrients on physiological, biochemical and functional characteristics of the of SC704 hybrid maize at water deficit condition during two cropping years of 2016-2017 and 2017-2018 at Experimental Farm in northwest of Ahvaz. The experiment was conducted as split-split plots based on a randomized complete block design with three replications. Main plots consisted of water deficit stresses at three levels, complete irrigation, cutoff irrigation both at the vegetative growth stage (12-14 leaf) and early seed growth stage, sub-plots were zinc sulfate foliar application at three concentrations (0, 5 and 10 g.L-1) and sub sub-plots foliar solution of iron sulfate at three concentrations (0, 3 and 6 g.L-1). The results of this study showed that increasing ZnSO4 concentration from zero to ten per thousand at constant levels of FeSO4 application (6 per thousand concentrations) resulted in increase in leaf area index under water deficit condition at the vegetative growth stage and beginning of seed growth stage. The lowest current photosynthesis was obtained in the absence of foliar application of zinc and iron. The lowest content of intercellular carbon dioxide was obtained at the beginning of seed growth stage when irrigation was stopped. The use of zinc and iron sulfate increased the values of this trait and removed the photosynthetic limitations. The highest yield of ear was obtained in complete irrigation with 6 per thousand concentration FeSO4 spray (9135.66 kg.ha-1), which increased by 25.1% compared to non-spray at this irrigation level. Manuscript profile