List of Articles grain N

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  1 - Effects of Drought Stress and Humic Acid on Plant Growth, Yield Quality and Its Components of Quinoa (Chenopodium quinoa Willd)
  Farah Mohammadi Abbas Maleki Amin Fathi
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  2 - The Effect of Climate Change on Evapotranspiration, Leaf Area Index and Growth Indices of Chickpea (Cicer arietinum L) at Gonbad Condition
  Ali Rahemi Karizaki Nabi Khaliliaqdam Korosh Sanaie
  10.30495/JCEP.2022.1902577.1695
  Climate changs is one of the most important issues that has been observed in agriculture in recent decades and has limited production of crops. SSM-iLegum-Chickpea model was used to simulate the effect of climate change on evapotranspiration and leaf area index and grow More

  Climate changs is one of the most important issues that has been observed in agriculture in recent decades and has limited production of crops. SSM-iLegum-Chickpea model was used to simulate the effect of climate change on evapotranspiration and leaf area index and growth indices of chickpea seed in Gonbad. First, meteorological data from the Dome Synoptic Meteorological Station from 1993 to 2017.The scenarios include increasing the temperature by two, four and six degrees, increasing the Co2 concentration by two times, and reducing rainfall by two percent, and a combination of the above scenarios, which total 9 scenarios. For the high temperature scenarios, the maximum and minimum daily temperature changes were added. Results of analysis of variance showed that in dry and irrigated conditions the effect of sowing date and climate change scenarios on all traits such as grain filling period, grain filling speed, evapotranspiration, leaf area index and total grain nitrogen except Harvest index nitrogen (NHI) was significant at 1% level in dryland conditions. But the interaction effect of planting date and climate change was only significant on evapotranspiration and leaf area index at 1% and NHI at 5% level. Duplication of concentrations of CO2 caused increasing about 6.2 in harvest index of nitrogen. Also, the best planting date for Gonbad city is the beginning of December in the simulation conducted for Gonbad. Manuscript profile
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  3 - The Study of Source-Sink Relations by Comparison of Weight and Grain in the Modern and Old Wheat Cultivars
  Mehdi Joudi shahram mehri
  Seed filling in wheat is controlled by the availability of substrate (source strength), the capacity of the organs to utilize it for seed growth (sink strength). The aim of this research was to study source-sink relations in wheat, through seed weight and grain number i More

  Seed filling in wheat is controlled by the availability of substrate (source strength), the capacity of the organs to utilize it for seed growth (sink strength). The aim of this research was to study source-sink relations in wheat, through seed weight and grain number in new and old wheat cultivars. The experiment was performed at Moghan College of Agriculture and Natural Resources, Research Farm (University of Mohaghegh Ardabili) during 2010-2011 growing season. The plant materials (81 wheat cultivars) were evaluated using a simple lattice design with two replications under well-watered condition. The results showed that there were significant differences for measured agronomic and physiologic traits among wheat cultivars tested. Overall, new wheat cultivars showed high values of seed yield as compared with the old ones. This trend was also observed in the cases of harvest index (HI) and grain number per square meter. There were no significant differences in biological yield and 1000-grain weight between old and new cultivars. Spike dry weight measured at anthesis and physiologic maturity and also partitioning photoassimilates to the spike during anthesis-physiologic maturity phases increased more in new cultivars than old ones. Increased grain number in new wheat cultivars and the lack of significant changes in 1000-seed weight suggests that seed yields of the cultivars used under the condition tested are controlled more by sink than source strength. Under conditions tested, it seems that increased grain number, either in plant level or in square meter, might be considered as a way to assess increased seed yield. Manuscript profile
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  4 - Plant growth regulators affecting wheat (Triticum aestivum L.) growth and seed components and subsequent vernalization under drought stress
  Sayed Komeil Sayed Shourbalal Ali Soleymani Hamid Reza Javanmard
  10.30495/ijpp.2023.708185
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  5 - Investigation the effect of planting date on yield, yield components and growth indices in some cultivars and lines of barley in Khuzestan region
  Milad Mojadami Abdollah Bahrani
  10.2./jpps.2021.685090
  In order to determine the most suitable cultivars and barley lines in different planting dates, an experiment was conducted during 2019-2020 in Ghizanieh region of Ahvaz. The main factor includes three planting dates (1 November, 16 November and 1 December) and the sub- More

  In order to determine the most suitable cultivars and barley lines in different planting dates, an experiment was conducted during 2019-2020 in Ghizanieh region of Ahvaz. The main factor includes three planting dates (1 November, 16 November and 1 December) and the sub-factor also includes six cultivars and lines of barley (Auxin, Nowruz, Nimroz, WB-95-3, WB-95-9 and WB-95-19) was done using split plots in a randomized complete blocks design with three replications. The measured traits were stem length, spike length, grain length, number of hollow seeds, number of seeds per spike, 1000-seed weight, number of spikes per square meter, grain yield, biological yield, harvest index, grain nitrogen percentage, grain protein percentage and plant growth indices. Results showed that the effect of sowing date on grain yield, number of seeds per spike and number of hollow seeds was significant at 5 درصد probability level. Planting date of 1 November reduced seed yield and increased number of hollow seeds and the third planting date also reduced number of seeds per spike and grain yield. Nowruz cultivar had more spikes per square meter in early planting date than late planting date. At the date of early sowing of barley, the highest number of hollow seeds was produced per spike. In late planting, plant height decreased and as a result, the biological yield also decreased. Planting date of 16 Nov. had the highest number of seeds per spike.  The highest yield obtained in Auxin cultivar with an average of 7710 kg.ha-1 on the second  planting date and line WB-95-19 at the same planting date with an average of 7226 kg.ha-1. 16 Nov. planting date, which had the highest seed yield, had the highest LAI and NAR. Seed nitrogen had the highest level in early sowing date in WB-95-3 line and decreased in late sowing dates. In general, the results of this experiment showed that early sowing of barley, reduced grain yield and sowing of Auxin cultivar on November 16 in Ghizaniyeh region had the best economic yield.  Manuscript profile
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  6 - Predicting factors affecting on main component of wheat yield
  Abbas Abhari
  The final status of grains in the individual phases of plant development is determined and different factors effect on growing season during and each of these cases in its critical period can have an impact on the number of final grain yield. This study was conducted to More

  The final status of grains in the individual phases of plant development is determined and different factors effect on growing season during and each of these cases in its critical period can have an impact on the number of final grain yield. This study was conducted to explain of relationship between factors affecting on wheat yield components. A factorial experiment in a randomized complete block design with four wheat cultivars (Beak cross of Roshan, Chamran, Pishtaz and Mahdavi) under four sowing dates (23 October, 16 November, 11 December and 5 January) and four replications in sabzevar Agricultural sciences Research during 2010-2011 and 2011-2012 were performance. Temperature, stem and leaf nitrogen and stem dry matter per–anthesis were the best influenced parameters on KNO. Considering results of correlation coefficients, kernel number per square meter appeared to have the best relation (r:0.88) with mean temperature of stem elongation to anthesis. Exponential function could be used to estimate kernel number per square meter with stem dry matter at anthesis. Minimum stem dry matter at anthesis was 156.7 gr.m-2. Fitted model 95% of kernel numbers and formed when stem dry mater is revealed that 730 gr.m-2. During growing season, availability of trained juice, temperature and day length are involved in the production of total dry matter and dry matter production is directly related to the grain number so, each of these cases in its critical period can have an impact on grain number and final grain yield. Manuscript profile
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  7 - Leaf chlorophyll content and grain protein and yield changes of three durum wheat (Triticum durum ) cultivars under nano fertilizer application
  Razieh Ebrahimnia Ehsan Bizhanzadeh Ali Behpouri Rohullah Naderi
  To evaluate the impact of nano fertilizers on leaf chlorophyll content, grain protein and yield of three durum wheat cultivars, a factorial experiment based on randomized complete block design was conducted with three replications in research farm of College of Agricult More

  To evaluate the impact of nano fertilizers on leaf chlorophyll content, grain protein and yield of three durum wheat cultivars, a factorial experiment based on randomized complete block design was conducted with three replications in research farm of College of Agriculture and Natural Resources of Darab, Shiraz University, during 2015 growing season. Treatments were Three types of nano fertilizers including nano- composites bio organic (300 kg/ha), uremic (in three stages, 50 kg/ha in each stage) and biomik (dissolved in water, 2 kg/ha) and chemical fertilizer treatment including nitrogen (200 kg/ha) with phosphorus (200 kg/ha) and potassium (100 kg/ha) and three durum wheat cultivars including Behrang, Shabrang and Yavaros. Uremic fertilizer treatment had the highest seed nitrogen (2.9%), grain protein (18.5%) and grain yield (kg ha 7958.5). Also, among the cultivars, Yavaros had the highest grain nitrogen (2.5%), grain protein (16.2%) and grain yield (7160.2 kg/ha). Likewise, interaction effect of fertilizer and cultivar showed that uremic in Yavaros with 27% had the highest protein content. The chlorophyll content had the increasing trend up to dough development stage and the maximum amount was obtained in uremic (61.6 SPAD unit). The highest crop growth rate was also observed in uremic at dough development stage. Overall, results showed that application of uremic especially in Yavaros cultivar caused 19.5% increase in grain yield compared to chemical fertilizers. Manuscript profile