List of Articles Saeed Zakernejad

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  1 - Assess Correlation between Traits of Sorghum Affected Different Rate of Nitrogen Fertilizer and Vermicompost under Water Stress Situation
  Seyedeh Zohreh Hashemi Saeed Zakernejad Khoshnaz Payandeh
  BACKGROUND: Yield in Sorghum, similar to the other crops, is a complex trait and constitute by many of morphological and physiological traits. Mentioned trait is affected by genotype and environmental factors because it is a quantitative trait.OBJECTIVES: This study was More

  BACKGROUND: Yield in Sorghum, similar to the other crops, is a complex trait and constitute by many of morphological and physiological traits. Mentioned trait is affected by genotype and environmental factors because it is a quantitative trait.OBJECTIVES: This study was conducted to predict the most effective traits on sorghum seed yield according correlation between characteristics in response to apply different irrigation regime and nutrition crop.METHODS: Current research was done according split plot experiment based on randomized complete blocks design with four replications along 2017 year. The main factor included water deficit stress at three level (A1: 70, A2: 100 and A3: 130 mm Class A evaporation pan) and combined effect of nitrogen fertilizer and vermicompost at five level (B1: 100% Nitrogen; 100% pure nitrogen equivalent to 200 kg per hectare, B2: 75% Nitrogen+25% Vermicompost, B3: 50% Nitrogen+50% Vermicompost, B4: 25% Nitrogen+75% Vermicompost, B5: 100% Vermicompost) belonged to sub plot.RESULT: According result of analysis of variance effect of different level of irrigation regime and combined effect of nitrogen fertilizer and vermicompost on all measured traits was significant but interaction effect of treatments (instead seed yield and biologic yield) was not significant. Simple correlation coefficients between traits were estimated according to Pearson coefficient. The most positive and significant correlation was observed between seed yield and biologic yield (0.859**), harvest index (-0.703**) and number of seed per raceme (0.646**) at 1% probability level. The traits of number of raceme per race (0.641*), race length (0.541*), number of seed per race (0.533*) and chlorophyll index (0.521*) had correlation with the seed yield was significant at 5% probability level.CONCLUSION: According to the results of this research, characteristics such as of biologic yield, harvest index and number of seed per raceme 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
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  2 - Response of Seed Yield, Its Components and Leaf Area Index of Spring Corn to Consume Vermicompost and Iron Nano fertilizer
  Najmeh Razmandeh Saeed Zakernejad Khoshnaz Payandeh
  BACKGROUND: Organic farming has emerged as important priority area globally in view of growing demand for safe and healthy food and long term sustainability and concerns on environmental pollution associated with indiscriminate use of agrochemicals. Nano fertilizers can More

  BACKGROUND: Organic farming has emerged as important priority area globally in view of growing demand for safe and healthy food and long term sustainability and concerns on environmental pollution associated with indiscriminate use of agrochemicals. Nano fertilizers can be easily absorbed by crops and may exhibit a prolonged effective duration of nutrient supply in soil/crop compared to the conventional fertilizers. OBJECTIVES: Evaluate effect of different level of vermicompost and Nano iron fertilizer on seed yield, its components and leaf area index. METHODS: Current research was carried out via split plot experiment based on randomized complete blocks design with three replications along 2018 year Main plot included three level of vermicompost (V0: nonuse of vermicompost or control, V1: 5 t.ha-1 vermicompost, V2: 10 t.ha-1 vermicompost) was consumed at planting stage. Also subplots consisted four level of Nano iron fertilizer (F0: Nonuse of Nano iron fertilizer or control, F1: 0.002 L.ha-1, F2: 0.004 L.ha-1 and F3: 0.006 L.ha-1 Nano iron fertilizer) was used at 3 to 4 leaves stage. RESULT: According result of analysis of variance effect of different level of vermicompost and Nano iron fertilizer on all measured traits was significant at 1% probability level also interaction effect of treatments (instead biologic yield) was significant at 5% probability level. Mean comparison result of interaction effect of treatments indicated the maximum amount of number of rows per ear (20), number of seed per row (49), 1000 seeds weight (545 gr), seed yield (6000 gr.m-2), biological yield (1939 gr.m-2), harvest index (30%) and leaf area index (5.81) belonged to 10 t.ha-1 vermicompost with 0.006 L.ha-1 iron Nano fertilizer, also lowest amount of measured traits was for nonuse of vermicompost and iron Nano fertilizer or control treatments. CONCLUSION: Consume 10 t.ha-1 vermicompost with 0.006 L.ha-1 iron Nano fertilizer led to achieve highest amount of yield, its components, harvest index and leaf area index and can be advice to farmers. Manuscript profile
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  3 - Evaluation of Combined Effect of Nitrogen Fertilizer and Vermicompost on Quantitative and Qualitative Characteristics of Wheat Verities in Amareh Region (Southern Iraq)
  Ahmad Mahisan Davood Almaleki Saeed Zakernejad
  BACKGROUND: Balanced and efficient use of applied N is of paramount importance in the overall nutrient management system than any other plant nutrient in order to reduce its negative impact on the environment. For economic production keep equilibrium between fertilizer More

  BACKGROUND: Balanced and efficient use of applied N is of paramount importance in the overall nutrient management system than any other plant nutrient in order to reduce its negative impact on the environment. For economic production keep equilibrium between fertilizer and biofertilizer is necessary in sustainable agriculture.OBJECTIVES: This research was done to assess effect of fertilizer and biofertilizer on crop production and protein content of wheat varieties under warm and dry climate condition.METHODS: Current study was consisted according split-plot experiment based on Randomized Complete Block Design with three replications. The main plot included the combination of chemical and biological fertilizers (F1: 150 kg.ha-1 urea fertilizer, F2: 150 kg.ha-1 urea fertilizer with 5 t.ha-1 vermicompost, F3: 5 t.ha-1 vermicompost) at three level. The sub plot consisted three varieties of wheat (V1: Rashid, V2: Bahous 99, V3: Aba 99).RESULT: The results showed that the effect of combination treatment of chemical and biological fertilizers and verities on plant height, seed yield, yield components, biological yield, and harvest index and seed protein percentage was significant. Also, the interaction of the combination of chemical and biological fertilizers and verities on the number of spikes per unit area, the number of seeds per spike, the 1000 seed weight, seed yield and biological yield was significant. The highest seed yield belonged to the combined treatment of nitrogen chemical fertilizer and vermicompost and Bahous 99 Varity with an average of 468.11 gr.m-2, and lowest seed yield belonged to application of vermicompost fertilizer and the Rashid Varity with an average of 394.2 g.m-2.CONCLUSION: In general, it can be said that in order to achieve the maximum quantitative and qualitative yield of wheat, it is suggested to cultivate the Varity of Bahous 99 with the combined application of nitrogen fertilizer and vermicompost in Amara region in southern Iraq. Manuscript profile
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  4 - Investigation Effect of Different Irrigation Regime and Super Absorbent Poly-mer on Seed Yield and Morphological Traits of Maize (Zea mays L.)
  Mahshid Kazempor Saeed Zakernejad
  BACKGROUND: Alternative furrow irrigation method is an effective procedure to reduce the amount of irrigation water in arid areas for economic production. OBJECTIVES: Assessment seed yield, its components and morphological characteristics of corn affected different leve More

  BACKGROUND: Alternative furrow irrigation method is an effective procedure to reduce the amount of irrigation water in arid areas for economic production. OBJECTIVES: Assessment seed yield, its components and morphological characteristics of corn affected different level of irrigation regime and super absorbent polymer (SAP) under warm and dry climate condition. METHODS: This research was conducted according split plot experiment based on randomized complete blocks design during 2016 with three replications. The main factor included three irrigation regimes (I1: Conventional irrigation or control, I2: Alternate furrow irrigation from 4 leaves stage until silk emergence and after conventional, I3: Normal irrigation until silk emergence and after alternate furrow irrigation), also three level of super absorbent polymer (S1: non use of SAP or control, S2: 25 kg.ha-1, S3: 50 kg.ha-1) belonged to the sub factor. RESULT: The results of analysis of variance revealed the effect of different irrigation regimes on all measured traits (instead number of row per ear) was significant, also effect of different level of SAP on all measured traits (instead number of row per ear) (instead Ear diameter, stem diameter and number of row per ear) was significant, but interaction effect of treatment on all measured traits (instead number of seeds per ear and seed yield) was not significant. Evaluation mean comparison result of different irrigation regimes indicated maximum amount of plant height, ear length, ear diameter, stem diameter, number of row per ear, number of seed per row, number of seed per ear, 1000-Seed weight and seed yield was noted for I1 and minimum of mentioned traits belonged to I2 treatment. Also compare different level of SAP showed that the maximum and the minimum amount of measured traits belonged to S3 and S1 treatments. CONCLUSION: Generally according result of current research I3 treatment had lowest decrease in seed yield, its components and morphological traits so in water resource limitation I3 treatment with use 50 kg.ha-1 SAP it can be advice to producers. Manuscript profile