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      • Open Access Article

        1 - Compare of the Application of Nano and Micro Wastes as Supplying Source of Zinc in Cucumber Hydroponic Culture
        sahar moghaddasi fathallah karimzadeh
        In recent years, disposal of waste tires is an environmental challenge in many countries. Previous researches has been shown that rubber waste ash and its nanoparticles can be used as an effective source of zinc (Zn) for plant. In this research, feasibility of using nan More
        In recent years, disposal of waste tires is an environmental challenge in many countries. Previous researches has been shown that rubber waste ash and its nanoparticles can be used as an effective source of zinc (Zn) for plant. In this research, feasibility of using nanoparticles and rubber waste (as zinc supplying source in plant) is studied moreover comparing the nanoparticles of rubber waste with commercial zinc sulfate fertilizer available in the market. In this regard, moreover nanoparticles production and characterization them by scanning and transient electron microscope, these wastes were used in cucumber hydroponic culture, then the quantitative and qualitative performance of the fed products were compared with the commercial zinc sulfate fertilizer available in the market. According to the obtained results, by reducing the particle size of the rubber from micron to nano, Zn extractable percentage increased from 1.5 to 2.5%. So, using rubber nanoparticles increased plant performance and also, increased Zn concentration in plant tissues compared with commercial zinc sulfate fertilizer and those grown in control. Manuscript profile
      • Open Access Article

        2 - Study on flora, life form and chorotype of Kandoleh, Kermanshah province
        Rasoul Bagherabadi
        The study of the flora is important in management and development of natural resources because it shows the plant species presence and vegetation cover condition. The aim of this research was to identify the plant species, introducing the flora, determination of life fo More
        The study of the flora is important in management and development of natural resources because it shows the plant species presence and vegetation cover condition. The aim of this research was to identify the plant species, introducing the flora, determination of life forms, and plant geographical distribution of Kandoleh, in Kermanshah province. During vegetation growth, from 2020 we collected and identified plant species in the study region, and floristic list was provided. The results showed the collected species belong to 78 genera and 21 species in the region. The most important families were, Graminae (15.51%), Compositae (13.79%) and Leguminosae (10.3%) and Campanulaceae (9.48%) and Labiatae (8.6%). Life forms of plant species included hemicritophytosis 41.3%, tetrophytes 33.6%, chamaephytes 11.2%, Geophytes 8.6% and phanerophytes 5.1%. The high percentage of hemicritopathitis species indicated that the area has cold climate. The plants geographical distribution is related to Irano-touranian(75.57%), European- Mediterranean (15.51%), Irano-touranian/ Europe–Siberean (7.75%), cosmopolitan (3/34%), plural (3/4%), touranian (3.34%), Europe – Siberean (2.58%), Irano-touranian/ Mediterranean/ Europe – Siberean/ (1.72%), Irano-touranian/ Sahara-Sindian (0.86) Sahara-Sindian (0.86). Manuscript profile