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Some Active Ingredients, Total Protein and Amino Acids in Plants Produced from Irradiated Ambrosia maritima Seeds Growing under Different Soil Salinity Levels

Keywords: ambrosin , minerals , protein , amino acids , Ambrosia maritima , damsin

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Abstract:

This study was carried out at the National Center for Radiation Research and Technology during two successive seasons, of 2007/2008 and 2008/2009, respectively in pots 30 cm in diameter. The aim of this experiment was to study the response of damsisa (Ambrosia maritima L.) seeds that exposed to different doses of radiation (0, 20, 40, 80 Gy) after planting in soils contain mixtures of salts. The dose rate was 0.89 and 0.87 rad sec-1. The salts used were NaCl, CaCl2 and MgSO4 in ratio 2:2:1 with concentrations 2000, 4000 and 6000 ppm. Irradiated and un- irradiated seeds were sown in, sand-loamy, soil with mixture of salts. Also, a group of irradiated and un-irradiated seeds were sown in normal soils without salt and serve as a control, all pots irrigated with tap water until field capacity. It was observed that saline condition decreased ambrosin, protein and amino acids trend, in damsisa shoots. While, the results obtained refer to increasing proline concentration separated as a result of uses ?-rays and salinity treatments. The extreme sensitivity of the metabolic processes of proline synthesis and degradation themselves may be of benefit by regulating metabolic processes which adversely affected by stress. So, it was concluded that ?-rays improve plant growth and increase its chemical components under saline stress condition.

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