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    • List of Articles Nabi Khalili Aghdam

      • Open Access Article

        1 - Morpho- Physiological Changes of Hempseed (Cannabis sativa L.) Traits as Affected by Seed Priming with Folic Acid and Hydrogen Peroxide
        Shirin Karbalaye Golizadeh Touraj Mir Mahmoodi Nabi Khalili Aqdam
        To evaluate the effects of seed priming of hempseed with folic acid and hydrogen peroxide on some morphological and physiological traits a factorial greenhouse experiment based on randomized complete design with four replications was conducted at Islamic Azad University More
        To evaluate the effects of seed priming of hempseed with folic acid and hydrogen peroxide on some morphological and physiological traits a factorial greenhouse experiment based on randomized complete design with four replications was conducted at Islamic Azad University, Mahabad Branch. Treatments consisted of hydrogen peroxide at five levels (0, 7.5, 15, 22.5, 30 mm/liter) as the first factor and the four leveld of folic acid (5, 10, 20, 27 mm/liter) as the second factor.Seeds, to be primed, were immersed into solution of folic acid for 24 hours and hydrogen peroxide for 6 hours. The characteristics like chlorophyll a, chlorophyll b, total chlorophyll content, relative water content, plant height, root length, allometric coefficient, plant fresh and dry weights, were measured. Result of analysis of variance showed that the effects of folic acid and hydrogen peroxide on all characters were significant, but the interaction between the two treatments were only significant on relative water content and allometric coefficient. In this study, seed priming with 15 mm/liter of hydrogen peroxide and 5mm folic acid resulted in highest chlorophyll a, chlorophyll b, total chlorophyll contents, plant height, root length, fresh and dry weights. Increasing hydrogen peroxide level above 15mm/liter affected traits negatively. Combinated treatments of 15 mm/liter of hydrogen peroxide and 5 and 10 mm of folic acid resulted in highest relative water content and allometric coefficient, respectively. Based on the results obtained it can be concluded that priming seeds with 15 mm/liter of hydrogen peroxide and 5mm folic acid is recommended to produce proper morphological and physiological traits. Manuscript profile
      • Open Access Article

        2 - Mixed-cropping and Its Effects on Yield and Agronomical Traits of Barley (Hordeum vulgar L.) and Bersim Clover (Trifolium alexanderium L.)
        S. Mohammadi N. Khalil Agdam A. Khoshnejad M. Pour Yousef N. Jalilnejad
        Mixed-cropping of barley (Hordeum vulgar L.) and clover (Trifolium alexanderium L.) was studied in a randomized complete block design with 4 replications to detect their best planting patterns at Agriculture Research Center of Miandoab. The experiment comprised of 10 tr More
        Mixed-cropping of barley (Hordeum vulgar L.) and clover (Trifolium alexanderium L.) was studied in a randomized complete block design with 4 replications to detect their best planting patterns at Agriculture Research Center of Miandoab. The experiment comprised of 10 treatments: 9B:1C (nine rows of barley: one row of annual clover), 8B:2C, 7B:3C, 6B:4C, 5B:5C, 4B:6C, 3B:7C, 2B:8C, 1B:9C and sole croppings of each plants. The results indicated that intercropping as a whole had a significant effect on number of stem, plant height and yield of clover. On other hands, the highest clover yields (8.3 t/ha) was achieved in sole cropping and lowest (1.2 t/ha) in 10:90 (Barley: Clover) treatment. Results also showed that spike length, number of seed per spike, 1000-grain weight, protein percent, economical yield and biological yield were affected by mixed-cropping. Reducing planting rows of barley relative to clover caused 87% reduction in both economical and biological yields. 1000-grain weight also decreased from 45.82 to 39g. Total LER was 1 in all of patterns and in 40:60 (barley: clover) pattern was the highest. LER calculated based on forage in two crops was similar to LER which achieved on seed yield of barley and forage yield of clover. Decreasing in rows of barley diminished LER to <1 and when density of barley decreased in field, LER reached to <1. Overall, results showed that the best pattern planting for barley-clover Mixed-cropping for forage and for forage production in clover and seed yield in barley was 40:60 (barley: clover). Manuscript profile
      • Open Access Article

        3 - 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
        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
      • Open Access Article

        4 - Simulation of Some Optimal Traits Related to Rain-Fed Wheat Yield at Urmia Conditions
        Nabi Khalili agdam
        For assessment of yield changes of wheat (cv. Sardari) and 14 modified genetically cultivars, a simulation experiment was conducted to select optimal plant characteristics based on maximum leaf area index, biomass of seed at filling time, biological yield, seed yield an More
        For assessment of yield changes of wheat (cv. Sardari) and 14 modified genetically cultivars, a simulation experiment was conducted to select optimal plant characteristics based on maximum leaf area index, biomass of seed at filling time, biological yield, seed yield and harvest index, using SSM-Model in rain-fed conditions of urmia for 3 years (2011-2013). Results of simulations showed that the major effective parameter in increasing of grain yield was 20% decreasing in time till grain filling beginning (vegetative phase), 20% increasing in time till grain growth ending and 30 % inversing in radiation use efficiency. The maximum leaf area index, the highest biomass at grain filling time, biological yield, grain yield and harvest index were determined in modified cultivars like: C2, C12, and C8 respectively which was made by increasing in vegetative phase, upgrading of flowering phase (grain filling phase) and improvement of radiation use efficiency (RUE). In cluster analysis which was used by three methods (mean linkage, single linkage and centroid), three groups were obtained: C12 and C8 in group 1, C11 in group 2 and other cultivars in group 3(C1, C2, C3, C4, C5, C6, C7, C9, C10, C13, C14 and Sardari). Recognition analysis of functions indicated that the main effects on clustering of genotypes are LAImax and biomass at the beginning of seed growth. Results, as a whole, showed that it is necessary to take into account climatically changes, methods of increasing of grain filling period, earlier enterance to grain filling period and improvement of RUE in addition to achieving optimum LAI during vegetation growth period in wheat, because it could be the important impacts in increasing of grain yield of wheat. Manuscript profile