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Mohamad Hesam Shahrajabian   Dr.  Senior Scientist or Principal Investigator 
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Mohamad Hesam Shahrajabian published an article in January 2018.
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A. Soleymani

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Department of Agronomy and Plant Breeding, Islamic Azad University, Isfahan (Khorasgan) Branch, Iran

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Publications
Article 0 Reads 0 Citations Changes in Germination and Seedling Growth of Different Cultivars of Cumin to Drought Stress A. Soleymani, M.H. Shahrajabian Published: 01 January 2018
Cercetari agronomice in Moldova, doi: 10.2478/cerce-2018-0008
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Cumin (Cuminum cyminum L.) is one the most appropriate choice for investing in dry and semi dry areas. In order to analyse influence of drought stress on germination and seedling growth of two masses of cumin, an experiment was conducted in seed technology laboratory of Faculty of Agriculture of Islamic Azad University of Isfahan, in 2016. In this experiment, polyethylene glycol (PEG 6000) at six levels (0, -0.144, -0.18, -0.216 and -0.288 MP) and NaCl at six levels (0, 4, 5, 6, 7, and 8 ds/m) and distilled water as control were applied to investigate the influence of dryness and salinity stresses on seed germination and seedling growth of two cultivars of cumin plant masses gathered from Mashhad-e-Ardahal and Kerman, then fulfilled in two separate factorial trials, on the basis of randomized design with four replications. Cultivar had significant influence on germination percentage, germination uniformity, radicle length, plumule length, fresh radicle weight, dry radicle weight, fresh and dry plumule weight. Drought stress impact on all treatments, except germination uniformity, fresh radicle weight and dry radicle weight was meaningful, but, just radicle length, plumule length, fresh plumule weight and dry plumule weight significantly affected by interaction between cultivar and drought stress. The rate of germination, germination percentage, as well as seedling growth and establishment were considerably lowered with the rise of stress levels using PEG. Control treatment had obtained the highest germination percentage, mean time of germination, radicle and plumule length, fresh plumule weight and seed stamina index. Taking all traits into account, this experiment found that Mashhad-e-Ardahal was most tolerant hybrid to water stress conditions.
Article 0 Reads 0 Citations Assessment of ET-HS Model for Estimating Crop Water Demand and Its Effects on Yield and Yield Components of Barley and W... A. Soleymani, M.H. Shahrajabian Published: 01 December 2017
Cercetari agronomice in Moldova, doi: 10.1515/cerce-2017-0034
DOI See at publisher website ABS Show/hide abstract
In order to estimate the water requirement of barley and wheat by using of ET-HS model, a research was conducted at Research Farm of Islamic Azad University, Isfahan (Khorasgan) Branch, Iran. ET-HS model is used to determine irrigation water quantity and irrigation schedule for different crop. The study was based on randomized complete block design (RCBD) with three replications and six treatments. The irrigation treatments included irrigation to supply 50, 75, 100, 125 and 150% of crop water demand on the basis of ET-HS model during growing season and control treatment (conventional irrigation), which was irrigation on the basis of 70 mm evaporation from Class A evaporation pan during growing season. In barley experiment, the highest values for number of fertile tiller, maximum LAI, total dry matter in maximum LAI stage, number of grain per spike, a thousand seed weight (35.56 g), grain yield (7877.9 kg/ha), biological yield (17689.7 kg/ha) and harvest index (44.45%) was obtained for irrigation according to 100% of crop water demand on the basis of ET-HS model. In wheat experiment, the highest number of fertile spike, number of grain per spike, 1000 grain weight, grain yield, biological yield was obtained for irrigation treatment on the basis of 100% ET-HS model; moreover, the maximum harvest index was related to control treatment, followed by irrigation on the basis of 100% of ET-HS model. Conclusively, the appropriate irrigation treatment was 100% of crop water demand on the basis of ET-HS model during the growth season for both crops.
Article 0 Reads 1 Citation Impact of Different Irrigation Managements on Soil Water Consumption, Grain Yield, Seed Protein, Phosphorus and Potassiu... M.H. Shahrajabian, A. Soleymani, P.O. Ogbaji, X. Xue Published: 01 September 2017
Cercetari agronomice in Moldova, doi: 10.1515/cerce-2017-0021
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To evaluate soil water consumption, changes in quantity and quality of winter wheat seed and forage under different irrigation treatments, an experiment was conducted in Beijing, China, in the 2012-2013. Irrigation treatments were (I1): irrigation before sowing, (I2): irrigation before sowing + before freezing; (I3): irrigation before sowing + before freezing + irrigation in the beginning of erecting stage + irrigation at flowering stage; (I4): irrigation before sowing + irrigation before freezing + irrigation at the booting stage + irrigation at flowering stage. The laid out of experiment was randomized complete block design, repeated six times. The effect of irrigation on total biological yield, grain yield and harvest index is significant. The highest mean soil water consumption in Oct., Nov., Dec., Jan., Feb., Mar., Apr. and May was obtained for lysimeter 10 (I2), lysimeter 10 (I2), lysimeter 6 (I2), lysimeter 10 (I2), lysimeter 10 (I2), lysimeter 10 (I2), lysimeter 11 (I3), and lysimeter 10 (I2), respectively. The results from the study indicate that irrigation winter wheat throughout the booting stage and flowering stage increased grain yield, harvest index, potassium percentage, ash percentage of forage wheat at flowering stage, seed and forage protein percentage. Evapotranspiration trends increased steadily, especially in last three months, in which the lysimeter fields were covered by winter wheat completely.
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