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      • Open Access Article

        1 - Physiological Response of Common Glasswort (Salicornia europaea L.) to Potassium Nano-Particles Grown in Saline Soils around the Lake Urmia
        Alireza Pirzad Mehdi Jabbarzadeh
        To evaluate the effects of spraying potassium nano-particles on the osmolytes, photosynthetic pigments, total carotenoids and nutrients of aerial parts of common glasswort (Salicornia europaea L.), a factorial experiment based on randomized complete block design with th More
        To evaluate the effects of spraying potassium nano-particles on the osmolytes, photosynthetic pigments, total carotenoids and nutrients of aerial parts of common glasswort (Salicornia europaea L.), a factorial experiment based on randomized complete block design with three replications was conducted at the marginal lands of Lake Urmia in 2012. The treatments consisted of application of potassium nano-particle concentrations at five levels (0, 1, 2, 3 and 4 g/l of K nano-particles) applied, once, twice and three times. Results of analysis of variance (ANOVA) showed that there were significant interaction between the levels and concentrations of potassium nano-particles sprayings on aerial parts with respect to their contents proline, total soluble carbohydrates, total chlorophyll, chlorophyll a and b, total carotenoids (xanthophyll and carotene) and nutrients (nitrogen, phosphorus, potassium, calcium and sodium). The highest levels of proline (1.84 mg/g dry weight) at one time spraying 4 g/l of K, total soluble carbohydrates (66.9 mg/g dry weight) at three times spraying 4 g/l, total chlorophyll (26.23 mg/g fresh weight) and chlorophyll b (22.85 mg/g fresh weight) at two times of water spraying, and chlorophyll a (9.93 mg/g fresh weight) at three times of 4g/l of potassium nano-particles sprayings were obtained. The highest nitrogen (0.95 % of aerial parts) and phosphorus (2.99 g/kg dry weight of aerial parts) contents were obtained from three times water spraying. However, the highest amounts of aerial plant part of potassium (65.08 g/kg dry weight) and sodium (403 g/kg dry weight) belonged to the two times, and calcium (29.23 g/kg dry weight) to the three times spraying of 4 g/l nano-potassium. Despite of the high concentration of osmolytes by potassium spraying, the nutrient accumulations levels were not significantly different from each other. Manuscript profile
      • Open Access Article

        2 - Determination of some minerals and heavy metals, nitrate and nitrite of Salicornia europaea L. harvested from Urmia Lake in 2017
        Shahin Zomorodi H. Behmadi F. Shavakhi S. Madani
        The halophyte Salicornia was recently introduced as a fresh vegetable crop that thrives in extreme salty conditions. In this study, the ash, minerals, heavy metal and nitric and nitrite anions in different parts (root, aerial parts and seeds) of Salicornia europaea L. w More
        The halophyte Salicornia was recently introduced as a fresh vegetable crop that thrives in extreme salty conditions. In this study, the ash, minerals, heavy metal and nitric and nitrite anions in different parts (root, aerial parts and seeds) of Salicornia europaea L. were evaluated. The results showed that the ash content and sodium in the aerial parts was the highest and in the roots the lowest (p < 0.05). But, potassium, copper and calcium between different organs and seed were not significant. While zinc and magnesium in seed and iron in root were higher, and zinc, manganese and magnesium content were lower in the root than other parts (p < 0.05). Salicornia roots had the lowest arsenic and cobalt and the highest lead (p < 0.05). The seeds containeed the lowest lead, cadmium, mercury and nickel. The aerial parts of this plant also had the least chromium and the highest levels of cadmium, mercury, nickel and cobalt. The mercury in different parts of the Salicornia was lower than the standard value. The lead in the root and cadmium in the aerial parts and chromium, arsenic and nickel in all parts were higher than the limit allowed. The highest nitrate content and the lowest nitrite content in aerial parts and the lowest nitrate content and the highest nitrite content were observed in the seeds (p <0.05). In all studied parts, the nitrate content was found in standard limit. According to the results, aerial parts of Salicornia can be used as a source of calcium, iron, zinc and magnesium. Manuscript profile