Asian Science Citation Index is committed to provide an authoritative, trusted and significant information by the coverage of the most important and influential journals to meet the needs of the global scientific community.  
ASCI Database
308-Lasani Town,
Sargodha Road,
Faisalabad, Pakistan
Fax: +92-41-8815544
Contact Via Web
Suggest a Journal
 
Articles by Sh. Jamaati-e-Somarin
Total Records ( 15 ) for Sh. Jamaati-e-Somarin
  A. Abbasi , A. Tobeh , M. Shiri-e-Janagrad , Sh. Jamaati-e-Somarin , M. Hassanzadeh and S. Hokmalipour
  In order to evaluate responses of two potato cultivars to different nitrogen levels, a split-plot design based on randomized complete block design with four replications was conducted at agricultural research field, Ardabil, Iran in 2008. Main-plots included nitrogen levels: 0, 80, 160 and 200 kg ha-1 nitrogen and sub-plots were assigned to Agria and Satina cultivars. Measured traits were mean tuber weight, tuber yield and number of tuber were sorted according to size and harvest index. Results showed that cultivar Agria in all traits was superior to Satina except for the number of small size tubers. The highest mean tuber weight and tuber yield was observed using 160 and 200 kg ha-1 nitrogen. With increasing nitrogen levels, number of tubers larger than 55 mm was increased. The rate of 160 kg ha-1 nitrogen resulted in the tubers ranged between 28 and 55 mm. Agria cultivar gained more leaf biomass during the season than Satina cultivar 160 kg ha-1, N produced the highest and control, produced the lowest biomass, respectively. The highest leaf biomass was obtained 83 DAP and finally decreased because of senescence and falling of leaves. Impact of nitrogen was not significant on small size tubers. Also, cultivar Agria had the highest values for most traits in treatment of 160 kg ha-1 nitrogen.
  K. Shahbazi , A. Tobeh , A. Ebadi , B. Dehdar , A. Mahrooz , Sh. Jamaati-e-Somarin and M. Shiri-e-Janagrad
  To study Nitrogen (N) agronomic use efficiency and nitrate accumulation in potato (Solanum tuberosum L.) tubers as affected by cultivar and N fertilizer level, an experiment was carried out in Ardabil Agriculture Research Station, Iran in 2008. It was based on a completely Randomized Block Design with four replications. The factors included N fertilizer with four levels (0, 80, 160 and 240 kg pure N ha-1) and three cultivars (Satina (V1), Draga (V2) and Agria (V3)). Results showed that with the increase in N level up to 160 kg ha-1, fresh tuber yield significantly increased in cv. Agria. At final harvest, late-maturity cultivar had the highest fresh tuber yield (51.75 t ha-1) under the N level of 160 kg ha-1. With further increase in N level up to 240 kg ha-1, fresh tuber yield and tuber number of late-maturity cv. Agria started to fall. Cv. Agria had the highest N agronomic use efficiency with applying 160 kg N ha-1 and cv. Draga (mid-maturity) had the lowest one with applying 240 kg N ha-1. With the increase in N level, nitrate content of tuber fresh matter and dry matter significantly increased. Cv. Agria, which produced the highest tuber yield, had the lowest nitrate content. Early-maturity cultivars (e.g., Satina) were more prone to accumulate nitrate than late-maturity ones (e.g., Agria). With the increase in N over the optimum level, in addition to yield drop, nitrate content excessively increased. Therefore, fertilizer level of 160 kg N ha-1 was the best level for cv. Agria to produce a high level, but Satina and Draga did not show statistically significant difference in their yields under different fertilizer levels. In group 2, however, under all N levels, Satina had significantly higher tuber yield than Draga. This study proposes fertilizer level of 160 kg N ha-1 as the most optimum fertilizer level for cv. Agria to realize a high yield while Satina and Draga did not show statistically significant difference in their yields at different fertilizer levels.
  M. Shiri-e-Janagrad , A. Tobeh , S. Hokmalipour , Sh. Jamaati-e-Somarin , A. Abbasi and K. Shahbazi
  A field experiment comparing different drip irrigation regimes and plant arrangements on potato yield and its component, leaf, stem and total dry matters, harvest index and water-use efficiency was carried out in a clay soil. This study was carried out on the experimental Farm of Ardebil Agriculture Research Station in 2006. The experiment included three treatments for different drip irrigation regimes: I1 (full irrigation), I2 (80% of full irrigation), I3 (60% of full irrigation) and three treatments for plant arrangements: conventional cultivation (P1), two rows 35 (P2) and 45 (P3) cm apart on a wide bed 150 cm. Results indicate that both drip irrigation regimes and plant arrangements didn’t influence the harvest index. In all varieties, I1, I2 and I3 produced the lowest amounts, respectively. Plant arrangement hadn’t significant impress on tuber yield, numbers and average weight of tubers. P3 and P2 treatments produced maximum and minimum values in more characteristics. The yield of tuber, leaf, stem, total and harvest index indicated increasing trend during the harvest times and only the stem and leaf yield decreased at the two final harvests. In most variables interaction effect of the (I1xP3) generated. Accumulative amounts of reference and 100, 80 and 60% crop evapo-transpiration (EP) were 782.2, 627.6, 502.0 and 376.5, respectively. Water Use Efficiency (WUE) with increase water supply improved. Treatment of I1xP3 had the highest WUE. Its values during growth period increased and maximum WUE obtained at 109 Day after Planting (DAP).
  Sh. Jamaati-e-Somarin , A. Tobeh , M. Hassanzadeh , M. Saeidi , A. Gholizadeh and R. Zabihi-e-Mahmoodabad
  In order to investigate the plant density and nitrogen level on nitrogen use efficiency components (agronomical, physiological, apparent recovery and nitrogen use efficiency), the amount of nitrogen uptake by plant, yield and yield components of potato (Solanum tuberosum L.) Agria cultivars` tuber, a factorial experiment based on randomized complete block design was conducted in Ardabil, Iran, in 2006 with three replications. Factors were adjusted for the nitrogen level (0, 80, 160 and 200 kg ha-1 net nitrogen) and plant density (5.5, 7.5 and 11 plant m-2). Results showed that with increasing the nitrogen levels and plant densities agronomical nitrogen use efficiency, physiological nitrogen efficiency and nitrogen use efficiency were decreased and apparent recovery nitrogen efficiency was increased. The most nitrogen uptake in plant was observed at the 200 kg ha-1 net nitrogen. The most yield and number of tuber per unit area were gained at the 80 and 160 kg ha-1 net nitrogen. Increasing the plant density resulted in increasing in the tuber yield per unit area and the rate of nitrogen up to the 160 kg ha-1 net nitrogen. So, application of the 80 kg ha-1 net nitrogen and plant density of 11 plant m-2 is recommended to get highest yield with the most nitrogen use efficiency.
  Sh. Jamaati-e-Somarin , A. Tobeh , M. Hassanzadeh , S. Hokmalipour and R. Zabihi-e-Mahmoodabad
  In order to investigate plant density and nitrogen fertilizer on nitrogen uptake from soil and nitrate pollution in potato tuber cu. Agria, a factorial experiment based on randomized complete block design with three replications was carried out in Ardabil, Iran, in 2006. Factors were nitrogen levels (0, 80, 160 and 200 kg ha-1 net nitrogen) and plant densities (5.5, 7.5 and 11 plant m-2). Results showed that the most nitrogen uptake by plant aerial parts and the most nitrate concentration in dry and fresh tuber weight were observed at 200 kg ha-1 nitrogen, 11 plant m-2 and 200 kg ha-1 nitrogen, 5.5 plant m-2, respectively. At 160 kg ha-1 nitrogen (as equal to 80 kg ha-1 nitrogen) and 11 plant m-2, the most tuber and yield of tuber were gained. With increasing nitrogen application up to 160 kg ha-1, nitrogen uptake by tuber, number of tuber, tuber dry weight and mean tuber weight was increased. 160 and 80 kg ha-1 nitrogen jointly with density of 5.5 plant m-2, caused the most mean tuber weight per plant. So, utilization of 80 kg ha-1 nitrogen to reach highest yield and less nitrate pollution, density of 11 plant m-2 to gain seed tuber (because of reduction in tuber weight and size) and density of 7.5 plant m-2 for eating usages, are recommended.
  M. Hassanzadeh , A. Ebadi , M. Panahyan-e-Kivi , Sh. Jamaati-e-Somarin , M. Saeidi and A. Gholipouri
  In order to investigate the effects of water stress on yield and yield components of 27 sesame genotypes, a factorial experiment based on randomized complete block design with three replications was conducted in 2006 in Moghan region, Iran. Factors were, 27 sesame genotypes (Karaj 1, Yekta, Oltan, Moghan 17, Naz takshakheh, Naz chandshakheh, Borazjan 2, Borazjan 5, Darab 14, Varamin 37, Varamin 237, Varamin 2822, Zoodrass IS, Hendi, Chini, Yellow white, 5089, Panama, Do-1, TF-3 , TKG-21, J-I, RT-54, Hendi 9, Hendi 12, Hendi 14 and Jiroft) and second factor was irrigation levels (complete irrigation and irrigation until flowering). Results showed that the highest yield belonged to Karaj1, Oltan, Naz takshakheh and Varamin 237 of 861.87, 863.47 and 859.73 kg ha-1. Naz takshakheh had the highest 1000-seed weight of 3.771 g. The highest seed No. per capsule and No. of capsule per plant was related to Chini and Naz chandshakheh genotypes of 107.250 and 99.13, respectively. So, Karaj 1, Oltan, Naz takshakheh and Varamin 237 genotypes in order to planting under drought stress conditions are recommended.
  M. Salehpour , A. Ebadi , M. Izadi and Sh. Jamaati-e-Somarin
  In order to investigate the response of Lentil cultivar Gachsaran to nitrogen and water stress under hydroponics conditions, a factorial experiment based on randomized complete block design was conducted with three replications using Hoagland nutrient solution without nitrogen, at the growth chamber in 2007, Ardebil, Iran. Factors were four water stress levels (0, -0.6, -0.9 and -1.2 MPa) prepared with polyethylene glycol (PEG) and three nitrogen levels (0, 0.5 and 1.0 Mmol). Results showed that all traits were decreased with increasing stress. Both treatments had significant effects on Relative Water Content (RWC), Leaf Chlorophyll Content (LCC), Leaf Area (LA), length, height and dry weight of stem and Total Biomass (TB) and their interaction effects on LCC (before and after stress), LA (p<0.05) and on length and dry weight of stem (p<0.01). The most values of RWC, LCC, LA, length and dry weight of stem and total biomass were obtained using 0.5 Mmol nitrogen is sufficient and higher values is not recommended because of its preventive effect on nitrogen fixation in plant.
  A. Tobeh , Sh. Jamaati-e-Somarin , M. Panahyan-e-Kivi and M. Shiri
  In order to investigation of possible controlling effects of cover crops on weeds in subsequent cultivation (Corn) under Different Tillage Methods, two factorial experiment based on randomized complete block design were carried out in Karaj, Iran, in 2006, in two separate parts of a farmland considering great variations in growth and diversity of weeds. The main factor was cover crops including control (without crop cover), hairy vetch, Persian clover and rye and the second factor was planting date of cover crops under surface or disk tillage and common or moldboard tillage. One experiment was done before corn cultivation according to initial plot plan under disk tillage and another one was carried out under moldboard tillage with cultivation of corn SCK108. Results showed that inhibition potential of these two crops is higher due to higher N content of their aerial and root system (residue) that lead to increase in mean mineral and organic N content under disk tillage. It is possible that released inhibitors with higher remained N in soil had toxicity effects on weed germination, so that weed plant number and density decreased with the increase in N content of vetch and clover residue. The plant number of these weeds significantly decreased through planting vetch, Persian clover or rye as cover crop under surface tillage compared to control. Their TDW in the presence of vetch and Persian clover was significantly lower than that in the rye and control treatments under same tillage method. Similarly, soil mineral N content in the depth of 20-40 cm aggregately in three planting date under disk tillage in vetch and clover treatments was significantly higher than that in rye treatment that corresponds to the status of weeds. The amount of mineral N content was highest in rye treatment among all treatments under moldboard tillage. Among two kinds of tillage, surface or disk tillage had better results compared to common or moldboard tillage. It seems that nowadays surface tillage by different implements was extensively used in the cultivation of different crops under different conditions.
  M. Hassanzadeh , A. Asghari , Sh. Jamaati-e-Somarin , M. Saeidi , R. Zabihi-e-Mahmoodabad and S. Hokmalipour
  In order to investigation of water deficit on drought tolerance indices of 27 sesame genotypes, a factorial experiment based on randomized complete block design was carried out in Moghan region in 2006 cropping year with three replications. Factors were: 27 sesame genotype (Karaj 1, Yekta, Oltan, Moghan 17, Naz takshakheh, Naz chandshakheh, Borazjan 2, Borazjan 5, Darab 14, Varamin 37, Varamin 237, Varamin 2822, Zoodrass IS, Hendi, Chini, Yellow white, 5089, Panama, DO-1, TF-3, TKG-21, J -1, RT-54, Hendi 9, Hendi 12, Hendi 14 and Jiroft) and irrigation (complete irrigation and irrigation until beginning of flowering). Results showed that Varamin 2822 genotype and Hendi 12 genotype in stress conditions had the highest yield stability about tolerance (TOL) and Mean Productivity (MP) indices, respectively. Regarding to Geometric Mean Productivity (GMP), Karaj 1, Oltan and Naz takshakheh were at highest level. Based on Stress Susceptibility Index (SSI), Varamin 237, Naz takshakheh, Naz chandshakheh, Oltan, Hendi 12, J-1, Panama genotypes and Jiroft line, were among mid-resistant and Zoodrass IS genotype was as sensitive one. Based on Stress Tolerance Index (STI), Varamin 2822, arranged as mid–resistant genotype. So, Karaj 1, Naz takshakheh, Varamin 237 and Varamin 2822 had highest rates (about mentioned indices) and are suitable for cropping under drought stress conditions.
  M. Saeidi , A. Tobeh , Y. Raei , M. Hassanzadeh , Sh. Jamaati-e-Somarin and A. Rohi
  This study was done as factorial based on Randomized complete block design with three replications in 2006 in research field of Mohaghegh Ardabili University, Ardabil, Iran. First factor was nitrogen level (0, 80, 160 and 200 kg ha-1 net nitrogen) and second was tuber size (<40, 40-80 and >80 g). Results showed that tuber size increase and nitrogen usage reduced Agronomical Nitrogen Use Efficiency (ANUE) and increased Physiological Efficiency (PE), Apparent Recovery Efficiency (ARE) and Nitrogen Use Efficiency (NUE). The most tuber yield, total plant dry matter, number of tuber per plant, mean tuber weight and tuber dry weight were achieved in medium tuber size. Also, the most tuber yield, mean tuber weight and tuber dry weight were gained at 160 kg ha-1 net nitrogen. Utmost nitrogen uptake by plant and total plant dry matter was observed at 160 kg ha-1 nitrogen. So, utilization of 160 kg ha-1 nitrogen with medium tuber size in order to achieving most yields, planting and eating usages is recommended.
  M. Saeidi , A. Tobeh , Y. Raei , A. Roohi , Sh. Jamaati-e-Somarin and M. Hassanzadeh
  In order to investigate tuber size and nitrogen fertilizer on nitrogen uptake and nitrate accumulation in potato tuber cultivar Agria, a factorial experiment based on randomized complete block design with three replications was carried out in Ardabil, Iran, in 2006. Factors were nitrogen fertilizer level (0, 80, 160 and 200 kg ha-1 net nitrogen) and tuber size (<40 = small, 40-80 = medium and >80 = large, g). Results showed that the most tuber yield, No. of tuber per plant, mean tuber weight and tuber dry weight were resulted at medium tuber size. Also, the most tuber yield, mean tuber weight, tuber dry weight and tuber nitrogen percent were observed at 160 kg ha-1 nitrogen. The most nitrogen taken up in tuber and aerial parts and nitrate accumulation in fresh and dry weight was gained at 200 kg ha-1 nitrogen and medium size. The most important result from this study was that nitrogen application over the favorite values, resulted in reduction of crop production along with increasing nitrate accumulation in tubers. So, nitrogen value of 160 kg ha-1 and medium tuber size to get the highest yield and suitable planting and eating usages are recommended, respectively.
  M. Hassanzadeh , A. Ebadi , M. Panahyan-e-Kivi , A.G. Eshghi , Sh. Jamaati-e-Somarin , M. Saeidi and R. Zabihi-e-Mahmoodabad
  In order to evaluate drought stress on relative water content (RWC) and chlorophyll content of 27 Sesame genotypes, a factorial experiment based on randomized complete block design with three replications was conducted in 2006 in Moghan region, Iran. Factors were 27 Sesame genotypes (Karaj 1, Yekta, Oltan, Moghan 17, Naz takshakheh, Naz chandshakheh, Borazjan 2, Borazjan 5, Darab 14, Varamin 37, Varamin 237, Varamin 2822, Zoodrass IS, Hendi, Chini, Yellow white, 5089, Panama, Do-1, TF-3 , TKG-21, J-I, RT-54, Hendi 9, Hendi 12, Hendi 14 and Jiroft) and irrigation levels (full irrigation and irrigation until flowering stage). Results showed that Varamin 2822 and Varamin 237 genotypes had the highest RWC of 84.100 and 81.217%, respectively. The most chlorophyll a content was observed in Hendi 9 genotype of 106.237, the most chlorophyll b in Karaj 1 genotype of 84.665 and the most chlorophyll total in Hendi genotype of 182.395 mg g-1 leaf fresh weight. It seems that Varamin 2822 genotype having the highest RWC and Hendi 9 and Hendi genotypes having the most chlorophyll a and chlorophyll total, respectively, are recommended for planting in arid and semi-arid conditions.
  M. Panahyan-e-Kivi , A. Ebadi , Ahmad Tobeh and Sh. Jamaati-e-Somarin
  To evaluate the yield and yield components of lentil genotypes under drought stress conditions, an experiment was conducted in Ardabil Agricultural Research Station during 2005 in a split-plot experimental design based on Completely Randomized Block Design (CRBD) with four replications. The treatments included four irrigation levels [(I1) irrigation on the basis of 60 mm evaporation, (I2) irrigation on the basis of 80 mm evaporation, (I3) irrigation after 100 mm evaporation from basin class A, and (I4) no irrigation] as the major factor and three lentil genotypes (Ardabil local variety, ILL4400 and ILL6212) as the minor factor. The results showed that irrigation water deficit during lentil flowering led to the decrease in pod number, grain number per plant, grain weight, grain yield and harvest index, so that I2 level of genotype ILL4400 had the highest yield followed by ILL 6212 and Ardabil local variety and I4 had the lowest yield. I3 level of ILL6212 had the highest harvest index and genotypes ILL4400 and ILL6212 had the highest grain number per plant.
  N. Bahavar , A. Ebadi , A. Tobeh and Sh. Jamaati-e-Somarin
  To study the effects of N application on growth and biomass of a local variety (cv. Kabouli) of chickpea under water deficit, a study was carried out hydroponically in growth chamber using three concentrations of N (0.25, 0.5 and 1 Mm) and four levels of drought stress (0, -0.3, -0.6 and -0.9 MPa) in three replications in the form of a completely random block design in 2007, Ardebil, under the Iran conditions. Water deficit stress were evaluated for leaf water content, leaf water potential, membrane stability index, chlorophyll content, leaf area, root area, root/shoot ratio, nodule water content, nodule number and biomass. According to observed data, N application was increased the leaf water content, membrane stability, chlorophyll, leaf water potential, leaf area, nodule water content, nodule number and biomass. The experiment showed that N fertilizer application (with a concentration of 1 Mm) can increase leaf and nodule Relative Water Content (RWC), leaf water potential, membrane stability index, leaf chlorophyll content, leaf area and biomass under water deficit condition. Therefore, it seems that mineral nitrogen application can mitigate the adverse effects of water deficit stress and improve growth and biomass in chickpea. Consequently, nitrogen application after moisture stress decrease negative effects drought.
  M. Shiri-e-Janagard , A. Tobeh , A. Abbasi , Sh. Jamaati-e-Somarin , M. Hassanzadeh and R. Zabihi-e-Mahmoodabad
  In order to study water demand, vegetative growth and tuber grade of potato crop under water stress and different cultivation patterns in different drip irrigation regimes, a split plot experiment based on the randomized complete block design with three replications carried out at the Allarog Research Station, Ardebil, Iran, in 2004. Estimation of crop evapotranspiration was conducted by CROPWAT computer program based on the relationship between crop coefficient (Kc) and crop evapotranspiration. Different drip irrigation levels were 100, 80 and 60% of potato crop evapotranspiration. Different levels of cultivation patterns were: 1 row 75 cm on bed 75 cm (furrow to furrow), 2 rows 35 cm on bed 150 cm (furrow to furrow) and 2 rows 45 cm on bed 150 cm and sampling times were the third factor with 6 levels. It was found that yield and growth of aerial parts was significantly affected by water stress and sampling times. Cultivation patterns had only significant effect on above ground biomass. The maximum and the minimum values of most traits studied were observed at 100 and 60% crop evapotranspiration levels, respectively. Number of tubers with 28-50 mm and larger than 50 mm diameter in size were higher at 80 and 100% of full irrigation, respectively. Estimating of amount of water irrigation during irrigation period for 100, 80 and 60% of water irrigation were 558.7, 445.96 and 335.22 mm, respectively.
 
 
 
Copyright   |   Desclaimer   |    Privacy Policy   |   Browsers   |   Accessibility