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        1 - The Effects of Physical Primings of Seeds on Agronomical Characteristics and Alkaloid Content of Datura
        سحر Baser kouchebagh F. Farahvash بهرام Mirshekari F. Rahimzadeh Khoei H. Kazemi Arbat
        To study the effects of physical seed primings on yield and alkaloid content of datura an experiment in a randomized complete block design with three replications and 10 different treatments was conducted at the Agricultural Research Station of Islamic Aazd University, More
        To study the effects of physical seed primings on yield and alkaloid content of datura an experiment in a randomized complete block design with three replications and 10 different treatments was conducted at the Agricultural Research Station of Islamic Aazd University, Tabriz branch, Iran, during growing season of 2013. Treatments of moist seeds were: ultrasonic treatment of seeds with a maximum of 3 watts, gamma and beta irradiations of seeds at 2 microcurie (µc) for 10 minutes, laser irradiation at 6328 angstrom (A°) and magnetic field of seeds with 40 microtesla (mt) each for 5, 10, 15 minutes respectively and control. Results indicated that seeds treated with gamma irradiation increased plant height over the control by 45%. Highest (206 g.m-2) and lowest (108.3 g.m-2) biological yields were produced when seeds treated with magnetic field for 10 minutes and laser for 5 minutes respectively. Similarly, highest (27.27 g.m-2) and lowest (14.96 g.m-2) seed yields were obtained by treating seeds with magnetic field for 15 minutes and ultrasonic respectively. Alkaloid content in the above ground plant parts was highest when seeds treated with gamma irradiation and lowest with the magnetic field irradiation for 5 minutes. It may be concluded that physical primings of seeds with magnetic field, gamma and laser irradiations would result in higher seed yields. Manuscript profile
      • Open Access Article

        2 - Germination, Growth and Yield of Wheat as Affected by Physical Priming Techniques
        B. Mirshekari F. Farahvash S. Baser KoocheBagh
        To study the effect ofphysical seed priming techniques on seed germination, growth and yield of a wheat cultivar (Triticum aestivum, cv. Falat), an experiment was conducted. Factors under study were ultrasonic intensity of 3 W.cm-2, laser wave of length of 6328 Å, More
        To study the effect ofphysical seed priming techniques on seed germination, growth and yield of a wheat cultivar (Triticum aestivum, cv. Falat), an experiment was conducted. Factors under study were ultrasonic intensity of 3 W.cm-2, laser wave of length of 6328 Å, magnetic field with intensity of 0.6 T, gamma and beta radiations both with intensity of 2 mc for 5 and 10 min and a control. Results indicated that effect of laser and magnetic field for 5 min was effective on duration germination as compared to other treatments. Seedling treated by magnetic field for 5 min resulted in greater vigor than ultrasonic and beta radiations. Seed weights, under magnetic field and gamma radiation treatments for 5 and 10 min were heavier (55.6 g) than other treatments. Seeds that treated with magnetic field for 5 min produced 21.5% more yield as compared to the control. Laser (for 5 min) along with gamma and magnetic field (for 5 and 10 min) radiations could produce yield up to 588 g.m-2. Seed yield in control plot was 71 g lower than those treated with laser for 5 min, gamma and magnetic field for 5-10 min radiations. Manuscript profile