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      • Open Access Article

        1 - Effects of Seed Hydropriming and Nitrogen and Betaine Foliar Application on Yield Quality and Quantity of Adel Cultivar of Chickpea (Cicer arietinum L.) under Rainfed Conditions in Lorestan Province
        Rasoul Babaeipour Khosro Azizi Hamid Reza Eisvand Mashala Daneshvar Omid Ali Akbarpour
        This study was performed in a factorial experiment based on randomized complete block design with three replications on Adel chickpea cultivar during 2017-2018. Seed priming consisted of two levels (non-priming and hydropriming) and spraying nitrogen and glycine betaine More
        This study was performed in a factorial experiment based on randomized complete block design with three replications on Adel chickpea cultivar during 2017-2018. Seed priming consisted of two levels (non-priming and hydropriming) and spraying nitrogen and glycine betaine with six levels (no spraying, as control, zero concentration (water spray), 3% urea, 100 mM glycine betaine, 200 mM glycine betaine, and glycine betaine 200 mM + urea 3%). Interaction of priming by foliar application on biological and grain yields was significant at 1%probabilitylevel.The highest biological yield (2668kg.ha-1) and grain yield (1301 kg.ha-1) were obtained with combined priming and consumption of 200 mM glycine + 3% urea and the lowest yield was related to non-priming and non-spraying priming. Priming also improved the harvest index, number of seeds per plant, number of pods per plant, 100-seed weight and number of active nodules. The effect of foliar application of plants by glycine betaine and urea on number of grains per pod and grain protein percentage was significant. The highest values of these traits belonged to foliar application of plants by glycine betaine with concentration of 200 mM + 3% urea. Hydropriming significantly increased grain yield, harvest index, grain weight, and number of seeds per plant. Hydropriming also allowed the plant to initiate flowering and pod forming earlier. According to the results of this study, the use of hydropriming treatment and spraying of nitrogen and glycine betaine respectively would be recommended to improve the quality and quantity of rainfed chickpea in Kuhdasht, Lorestan province. Manuscript profile
      • Open Access Article

        2 - The effects of soil salinity in three regions on growth and biochemical parameters of Halocnemum strobilaceum (Case study: southeastern edge of Urmia Lake)
        Nader Ahadi Latifeh pourakbar
        Soil salinity is on the increase around the world and it is considered as one of the most important challenges for the agricultural practices in world. Research has shown that saline soils limit the plant growth. Halocnemum strobilaceum plant belongs to the family of Ch More
        Soil salinity is on the increase around the world and it is considered as one of the most important challenges for the agricultural practices in world. Research has shown that saline soils limit the plant growth. Halocnemum strobilaceum plant belongs to the family of Chenopodiaceae and is a halophyte. The drying of Urmia Lake has led to the growth of this plant in saline soils of the region. This study was to investigate the effect of soil salinity on growth factors and osmolytes of H.strobilaceum plant in three regions (Chipgloo, Tapeh Chahar Borj, and Sahra Jen) southeastern edge of Urmia Lake. Soil and plant samples were analyzed for evaluation of growth parameters and physiological indices. The results indicated that Tapeh Chahar Bborj with silt-loamy texture had the minimum salinity (3.5 dS/m) and Sahra Jen region with sandy-loamy soil had the maximum salinity (17/43 dS/m). Also, results showed that the length, fresh and dry weight of shoots and roots, chlorophyll a, chlorophyll b, and carotenoids significantly decreased with increasing salinity while the Malondi aldehyde and proline and glycine betaine increased. Manuscript profile
      • Open Access Article

        3 - The effect of nano potassium fertilizer, potassium sulfate and salicylic acid on physiological characteristics of Calendula officinalis L. under water stress
        Somayeh Erfani Mohammadali Rezaei Farhad Farahvash Mehrali Mahmoudjanlo
        Abstract: Lack of water is one of the limiting factors for growth, and oxidative stress is a secondary stress resulting from drought and dehydration. In order to study the levels of potassium nanoclat fertilizers, potassium sulfate and salicylic acid in reducing water e More
        Abstract: Lack of water is one of the limiting factors for growth, and oxidative stress is a secondary stress resulting from drought and dehydration. In order to study the levels of potassium nanoclat fertilizers, potassium sulfate and salicylic acid in reducing water effects on a number of physiological indicators of evergreen plants, experimental spring was performed as a factorial based on a completely randomized design with three replications in 1398 in the research greenhouse of Islamic Azad University, Gorgan Branch. Factors involved included irrigation at two levels, consumption of potassium fertilizer at two levels of potassium nanocat and potassium sulfate, and salicylic acid at three levels of zero, one and two milliliters. Physiological traits such as photosynthetic pigments, proline, phenol total, superoxide dismutase, catalase enzyme, soluble sugar, protein and glycine betaine were evaluated. Based on the results of this study, dehydration stress significantly increased the levels of proline, the enzyme peroxidase, the enzyme catalase, glycine betaine and sugar, and reduced the levels of chlorophyll a, b, whole leaves and total protein. The use of salicylic acid leaf in conditions of dehydration stress in concentrations significantly increased sugar, total protein, glycine betaine and total phenol. The use of potassium nanocatalysts and potassium sulfate improved plant tolerance in drought stress conditions and increased physiological traits compared to control. Manuscript profile
      • Open Access Article

        4 - Effect of salicylic acid application on some physiological characteristics and essential oil production of lemon verbena (Lippia citrodora L.) under salinity stress
        Mohammad Moghaddam Leila Mehdizade Sara Farsari
        The aim of this research was to study the effect of salicylic acid (SA) usage on some physiological characteristics and essential oil production of lemon verbena (Lippia citrodora L.) under salinity stress. For this purpose, a pot factorial experiment was performed base More
        The aim of this research was to study the effect of salicylic acid (SA) usage on some physiological characteristics and essential oil production of lemon verbena (Lippia citrodora L.) under salinity stress. For this purpose, a pot factorial experiment was performed based on a completely randomized design with 4 salinity levels (0, 50, 100 and 150 mM NaCl), 4 SA levels (0, 150, 300 and 450 mg/L) and three replications. The measured traits included total soluble protein, malondialdehyde (MDA), hydrogen peroxide, glycine betaine, some antioxidant enzyme activities, and essential oil production. The interaction effect of the treatments on all of the studied traits were significant at 1% P value. The results showed that the highest amount of total soluble protein, MDA, hydrogen peroxide, glycine betaine, ascorbate peroxidase and superoxide dismutase activities were observed at 150 mM salinity level and application of SA at 300 mg/L causes to decrease total soluble protein and glycine betaine, and 150 mg/L of SA causes to decrease MDA. But application of this plant growth regulator had no significant effect on hydrogen peroxide. Also, the results showed that catalase enzyme activity and essential oil content at the highest salinity level (150 mM) reached to the lowest amounts. In total, the results of this study indicated that the SA application especially at 300 mg/L causes to improve the studied traits in this experiment and its usage under stress conditions is recommended. Manuscript profile
      • Open Access Article

        5 - Osmolytes changes for resistance in two cultivars of cotton (Gossypium hirsutum L.) Plants.
        Mohammad Ali Rezaei
        This study aims at the evaluation of physiological aspects of two cotton (Gossypium hirsutum L) cultivars, Siokra and Sahel to salin soil salinity [EC=12.3] collected from natural environment of Golestan province. Field tests in three stages, consist of two, four and si More
        This study aims at the evaluation of physiological aspects of two cotton (Gossypium hirsutum L) cultivars, Siokra and Sahel to salin soil salinity [EC=12.3] collected from natural environment of Golestan province. Field tests in three stages, consist of two, four and six foliair seedlings were performed. In leaves of both cultivars, from 1st to 3rd salinity stress, increased Na+, Cl- concentrations noticeably , indicating that salinity resistance was not associated with the ability of the plants to restrict ions uptake and accumulation. During the three vegetative growth stages, from 1st to 3rd, CGR, NAR K+ and Mg++ uptake in both cultivars decreased but increased production of proline and was higher in siokra cultivar. Effect of high salinity, was accompanied by increasing soluble sugars and decreasing insoluble sugars contents, in both cultivars. The content of glycine betaine decreased partialy from two to six foliair stage. Results determined that cotton is among plants that having production and accumulation sterategies of proline-glycine betaine spontaneously. High salinity of soil increased the importance of proline and soluble sugars for resistance of plant and decreased nonsoluble sugar content during growth stages. Manuscript profile
      • Open Access Article

        6 - The study of salty stresses (NaCl & CaCl2) and ascorbic acid on physiological charecterestics of Carpobrotus edulis L.
        Rezaei M.A S.Z Hosseini, مریم Safaei, فریبا Amirlatifi
        In order to study of effects of salinity stress on Ice plant (Carpobrotus edulis L.), three kind of soil with 1, 8 and 12ds/m selected for poted experiments. Before NaCl and CaCl2 treatments and after vegetative generation, ascorbate was treated in two concentrations of More
        In order to study of effects of salinity stress on Ice plant (Carpobrotus edulis L.), three kind of soil with 1, 8 and 12ds/m selected for poted experiments. Before NaCl and CaCl2 treatments and after vegetative generation, ascorbate was treated in two concentrations of 2.5 and 5 mmol.  CaCl2 treatments supplemented as 25 and 50 percent of salt treatment. Results indicated that with increasing of salinity (EC), calcium and ascorbate treatments, Na+, Cl-, Ca+2 and K+ of leaves increased significantly, in comparison with control. CaCl2 and ascorbate treatments have no diminishing effects on salinity stress intensity and Na+ absorption. Plant did not use soluble sugar and proline as an osmolyte for increasing osmotic pressure. Glycine betaine and total protein contents increased with increasing of salinity stress and plant got included among plants with the strategy of production and accumulation of glycine betaine and did not use proline. Suitable need of calcium for amelioration of peroxidase activity for scavenging of reactive oxygen species was different in salinities. Calcium oxalate and raphide morphology and raphide bundles number in cross section of leaves and raphides needles number in volume unit had no specific physiological trend and did not change significantly and was not affected by soil salinity, calcium concentration and ascorbate treatments. Manuscript profile
      • Open Access Article

        7 - Effects of exogenous glycine betaine on morphophysiological characteristics and yield of soybean (Glycine max L.)
        M.A Rezaei
        Since plants confront to kinds of environment stresses in life cycle, exogenous glycine betaine (EGB) applications on crop plants that unable to synthesis glycine betaine is a possible approach to overcome the environmental limitations. In order to study of different tr More
        Since plants confront to kinds of environment stresses in life cycle, exogenous glycine betaine (EGB) applications on crop plants that unable to synthesis glycine betaine is a possible approach to overcome the environmental limitations. In order to study of different treatments of EGB on physiological and morphological characteristics of soybean (Glycine max var PER and DPX), experiments were performed in field condition as factorial with completely randomized design in four replication. Treatments consist of 0 (as control), 2.5, 5, 7.5 and 10kg per hectar EGB in six-leaf and near the flowering stages. During the growth period the amount of chlorophyll and soluble sugar levels in leaves and proline, GB and total protein in leaves and seeds and morphological factors, including number of branches, pods, seed number in pods, thousands seed weight were measured. The results showed that chlorophyll content had no change by application of EGB. Regard to EGB, proline and soluble sugar content not observed significant different in ten foliare stage. All EGB concentrations increased number of lateral branch and number of seeds per pod significantly, but not abserved significant different in number of seed per pod and thousands seed weight. EGB application enhanced yield of soybean by increase in number of lateral branch and number of pod per plant. Increased EGB concentrations enhanced yield of soybean significantly, especially in DPX cultivar by optimum concentration of 7.5, 10 and 5 Kg/hec and 5. Total protein content, germination percent and rate in harvested seeds in different treatments of EGB have no significant different. Manuscript profile
      • Open Access Article

        8 - The effect of water stress on various of growth and proline, catalase, SOD in sesbania aculeata
        مظفر Kamrani آرین Sateei عباسعلی Nourinia
        In this study, effects of dry stress on growth parameters, proline content, glycine betaine, catalase, proxidase, and superoxide dismutase (SOD) were investigated in Sesbania aculeate L. This study was carried out fewer than 7 potting conditions on 7 treatments. Growth More
        In this study, effects of dry stress on growth parameters, proline content, glycine betaine, catalase, proxidase, and superoxide dismutase (SOD) were investigated in Sesbania aculeate L. This study was carried out fewer than 7 potting conditions on 7 treatments. Growth parameters such as number of leaves, area leaf, length of shoots, and number of shoots were measured during 4 stage of growth. Results indicated that increase in drought stress caused many effects on morphology and enzymes activities also decrease on growth, number of leaves, leaf area and increase in growth of root rather than shoot. Drought stress did not caused significant difference in the number of shoots. Increase in drought stress also lead to increase in glycine betaine (GB), and proline content in root and leaf. Increase in proline and GB content in leaf was higher than root. Drought stress also caused increase in catalase activity in root and leaves, and more stress also lead to more activity. Drought caused increase in peroxidase activity in leaves and root, but increases in this activity by increasing stress were only observed for root. Superoxide dismutase activity in leaves was not affected significantly by drought stress, but increased in root, by increase in stress. Manuscript profile
      • Open Access Article

        9 - Differential responses of two Iranian rice cultivars to arsenite toxicity
        Mahdi Yousofinia Faezeh Ghanati Markus J. Tamas Hassan Zare Maivan
      • Open Access Article

        10 - The effects of foliar application of Glycine Betaine on yield and physiological variables of rapeseed (Brassica Nupus L.) under different irrigation regimes
        Mohsen Bourboor meysam oveysi Mohammad Nasri
        The aim of current study was to study the effect of glycine betaine spraying under different levels of available water on agronomical and physiological attributes of rapeseed (Brassica unpus L.) plants. In this respect an experiment was conducted in randomized complete More
        The aim of current study was to study the effect of glycine betaine spraying under different levels of available water on agronomical and physiological attributes of rapeseed (Brassica unpus L.) plants. In this respect an experiment was conducted in randomized complete block design in three replications as split plot in research field of Varamin Islamic Azad University. The factors included irrigation at three levels (I1-normal irrigation, 60 mm tub evaporation, I2-mild stress, 90 mm tub evaporation and I3 – sever stress, 120 mm tub evaporation) and glycine betaine (GB) at four levels (B1 – pure water (without GB), B2 – 1.5 /1000, B3 – 2/1000, and B4 – 2.5 /1000). The interaction between two factor on grain yield, content of chlorophyll a and b, glycine betaine, malon dealdehyde (MDA) was significant. In general, higher concentration of GB as foliar spray especially under lower soil moisture level led to higher grain yield and higher content of measured variables (except MDA). The interaction effect on prolin content and relative water content (RWC) wasn’t significant but simple effects of irrigation and foliar GB were significant. The highest values of RWC (80.87 %) and prolin (15.7 µmol.g.FW) respectively were observed by using 2.5/1000 and 1.5/1000 concentrations of GB. The lowest values proline was showed by using 2.5 / 1000 concentration of GB. Manuscript profile
      • Open Access Article

        11 - The effect of priming and glycine betaine spraying on some morph-physiological and germination characteristics of bean var Derakhshan under salinity stress
        Muna Mirzaie Farshad Qushchi Payman Azizi
        In order to study of glycine betaine application on germination and morph physiological characteristics of bean under salinity stress an experiment was conducted in physiology laboratory of department of agronomy in Islamic Azad University, Varamin, Iran in summer 2016. More
        In order to study of glycine betaine application on germination and morph physiological characteristics of bean under salinity stress an experiment was conducted in physiology laboratory of department of agronomy in Islamic Azad University, Varamin, Iran in summer 2016. The experiment was installed in a completely randomized design, with treatments arranged in a factorial scheme with four levels of Salinity (0, 2, 4 & 6 mmol Nacl) by Three levels glycine betaine application (0, 5& 10 ppm), with three replicates. The results showed that salinity stress effect treatment significantly for germination index, radicle dry weight, total chlorophyll, leaf protein percentage, leaf proline content, the cell membrane stability and relative water content.  Also the results showed that glycine betaine application effect was significant for all experimental traits except for the cell membrane stability.  The interaction between salinity stress and glycine betaine was significant for germination index, total chlorophyll, protein percentage and leaf proline content. In generally the result demonstrated that the best treatment for salinity stress was control which improves the measured traits except radicle dry weight in red bean. Also glycine betaine application could be improved the negative salinity stress. Manuscript profile