• Home
  • فرشاد قوشچی
  • OpenAccess
    • List of Articles فرشاد قوشچی

      • Open Access Article

        1 - Effect of super absorbent polymer on the morpho-physiological and biochemical characteristics of wheat (Triticum aestivum L.) under water deficit stress
        Mohammad Reza Kazemi Farshad Ghooshchi Pourang Kasraei
        This experiment studies the effects of super-physiological characteristics of wheat in drought conditions for split plot in a randomized complete block design with three replications. Main plot including different levels of water deficit stress (60, 90 and 120 mm evapor More
        This experiment studies the effects of super-physiological characteristics of wheat in drought conditions for split plot in a randomized complete block design with three replications. Main plot including different levels of water deficit stress (60, 90 and 120 mm evaporation) and sub plot different amounts of polymer (zero, 15, 30 and 45 kg per ha).30 percent and biomass yield in the order of 6.42 and 10.94 percent increase compared to control polymer. In conditions of severe stress high level of polymer leads to a significant decrease in enzyme activity guaiacol (1.5 times), ascorbate peroxidase (63%), catalase (30%) and glutathione reductase (71%) compared to conditions without polymer. Even moderate levels of water stress leads to a significant reduction in chlorophyll a and b (15 and 24 percent respectively compared to control) was. But more drastic reduction in the amount of chlorophyll a and b in severe water deficit stress levels were observed (38.7, 51% reduction compared to control treatment). Using high polymer surfaces, 30 and 45 kg ha chlorophyll in plants to form a 13.42 and 20.13 percent respectively. Mild stress higher levels of polymers in organic solute had almost the same effect. While severe stress positive impact polymer was 45 kg per hector higher than 30 kg per hectare, and the accumulation of soluble sugars and proline able to hold even under mild stress. The high polymer membrane lipid peroxidation rate decreased, resulting in the production of malondialdehyde as compared to controls 53 percent. Superabsorbent polymer on grain weight, biological yield, grain yield, harvest index, guaiacol peroxidase enzymes, ascorbate peroxidase, glutathione reductase was significant, and in Kalataz the interaction is not significant.   Manuscript profile
      • Open Access Article

        2 - Study of priming (hydro priming, salicylic acid and nano silver atomic) seed on the improve indices germination and seedling growth triticale (X Triticosecale Vittmack) under salt stress
        Nafiseh Arab AliKhani Farshad Ghooshchi Alireza Safahani langerudi
        Salinity of the limiting factors crop production in world. For interdict of effects harmful this salinity an test order to the effect of priming (hydro priming, salicylic acid and nano silver atomic) seed on the improve indices germination and seedling growth triticale More
        Salinity of the limiting factors crop production in world. For interdict of effects harmful this salinity an test order to the effect of priming (hydro priming, salicylic acid and nano silver atomic) seed on the improve indices germination and seedling growth triticale (x triticosecale vittmack) under salt stress operating on four levels of salinity (0,6,10,14 dsm-1) and, salisylic acid 20 ppm and nano silver particles 10 ppm). This research in a factorial completely randomized design with three replications implement in the laboratory expertise Agricultural University- Varamin in year 2014- 2015. The results showed that high salinity stress reduce rate and percentage of germination in testes standard germination and cold test and accelerated aging test. Interactive effects of salinity and nano silver particles and Salicylic acid could also have a significant effect on the length seedling, length plumule, length root and rate of germination and rising tension in the plant (at 14 dsm-1), nano silver particles and Salicylic acid failed to prevent damage to the plant. most rate germination in treatment without salinity and pretreatment salicylic acid with mean 8.07 seed in day and least rate germination product in treatment salinity 14dsm-1 and un priming with mean 2.68 seed in day. most length seedling, length root, length plumule in treatment without salinity and pretreatment nano sillver mean order occur by 191 mm, 105mm, 85mm and least quantity factors mean order cause by mean 72mm, 34mm, 37 mm in treatment salinity 14dsm-1 and un priming. most rate appearance seedling accrue in treatment without salinity with mean 10/81% and least rate appearance seedling in salinity 14dsm-1 with mean 7/91 and in treatments priming most rate appearance seedling in treatment nano silver with mean 10/57 % and least that come in treatment un priming with mean 6/85.in treatments salinity most rate germination in cold test in treatment control with mean 65% and least that accrue in salinity 14dsm-1 with mean 43% .most percentage germination in treatment nano silver with mean 62% and least that accrue in treatment control with 37%. in treatments salinity most percentage germination in accelerated aging test in treatment control with mean 52% and least that in salinity 14dsm-1 with mean 30%.in accelerated aging test most percentage germination in treatment nano silver with mean 51% and least that accrue in treatment control with mean 29%. Manuscript profile
      • Open Access Article

        3 - Analyzing the effects of defoliation on physiological and biochemical characteristics of sunflower under cut irrigation.
        Farshad Ghooshchi
          Sensitivity to water deficit a few days before the heads emergence up to complete color change of grains is too much in sunflower. But the most sensitive stage to water deficit is at anthesis level. As a result, decrease in leaf area is the first reaction that a More
          Sensitivity to water deficit a few days before the heads emergence up to complete color change of grains is too much in sunflower. But the most sensitive stage to water deficit is at anthesis level. As a result, decrease in leaf area is the first reaction that a plant choose to adapt the storage of received water; this way is the most important mechanism of plant adaption to water deficit stress. In order to analyze the effects of defoliation on qualitative and quantitative characteristics of randomized complete blocks. The main plot was designed at four levels including the normal irrigation (S1), no irrigation from floret to flowering (S2), no irrigation from flowering to first stage o grain filling (S3), and no irrigation from first stages of grain filling to physiological maturity (S4). And the sub plot was designed at three level of on defoliation (F1), 25% defoliation (F2), and 50% defoliation. The results indicated that the main effect of no irrigation was significant an all factors under study including grain yield , biological yield , oil content, cytoplasm membrane resistance , Relative water content (RWC) , total chlorophyll, and proline. The main effect of defoliation was significant on all factors except for grain yield and biological yield. But, the interaction effect of no irrigation stress and defoliation was not significant on the factors under study. No irrigation at flowering to grain filling could decrease the grain yield to 44% comparing the normal irrigation. Also, under the same condition, the amount of proline increased significantly and reached 56.8 m mol / g; that is 49% more than normal irrigation condition. Moreover, 50% defoliation could increase the total chlorophyll and RWC significantly.   Manuscript profile
      • Open Access Article

        4 - Study of priming (hydropriming, gibbberllic acid and nano silver atomic) seed on the improve indices germination and seedling growth Avena (Avena sativa L.) under salt stress
        Faezeh Thaleghni moghadam Farshad Ghooshchi Alireza Safahani
        The aim of this study was to evaluate the effect of gibberellic acid and silver nano particles and hydro priming mitigate the effects of salinity on oatsIs at the stage of germination and growth. In order to evaluate the effect of hydro-priming, pre-treatment of gibbere More
        The aim of this study was to evaluate the effect of gibberellic acid and silver nano particles and hydro priming mitigate the effects of salinity on oatsIs at the stage of germination and growth. In order to evaluate the effect of hydro-priming, pre-treatment of gibberellic acid and silver nano particles (priming in the lab and sprayed in the greenhouse) to improve germination and seedling growth indices oats in salinity stress conditions (0,4,8,12 ) dS m and gibberellic acid at a concentration of 20ppm and 10ppm silver nano particles factorial design quite "random with three replications. The criteria evaluated were germination percentage, seed yield and shoot and root weight seedling dry, electrical conductivity, the results showed that salinity significant effect (P>0.01) on all of these things and be reduced. the interaction of salinity and priming on germination was not significant. the interaction of salinity and dissolved application on grain yield, root length, shoot length and root dry weight were significant (P>0.01). average interaction between salinity and foliar showed that the highest yield (2.49 grams per plant) the maximum root length (13.29cm) and, most during the shoot (14.99cm) and the highest seedling dry weight (24.819mg) of silver nanoparticles with an average salinity and pretreatment (18.98) Was obtained . The lowest grain yield (1.4999 grams per plant), root length (2 cm, 10 cm stem length) of 12 dS m salinity treatments and anti-stress lack of substance was achieved.According to the results obtained from the use of silver nanoparticles and priming effect of intense passion to improve hydro-priming reduced grain yield.   Manuscript profile