Effect of different concentrations of Sodium and  Calcium in the medium of  growth of Wheat  and Corn plants .

	Effect of different concentrations of Sodium and Calcium in the medium of growth of Wheat and Corn plants .
Magazine of Al-Kufa University for Biology
Article 1, Volume 2, Issue 0, 2010, Pages 134-140
Abstract
An experiment was conducted in Petri dishes to investigate effects of Na2SO4 and CaSO4 in germination percentage and speed ratio of Wheat (Triticum aestivum L. var. Iba ) and Corn ( Zea mays L. var. Rabbi ) seeds and some growth parameters of both species seedlings , in Education College for girls Labs . Results showed that there was a decrease in germination percentage and speed ratio and their growth of both species which grown in sodium content medium , also the results showed an increase in germination percentage and speed ratio of both species seeds which grown in calcium content medium , especially at 5 mM concentration ( in present of 70 mM of sodium sulphate ) which gave the highest increase ratio . Results also showed significant increase in seedlings growth parameters by the ratios of ( 92% , 100%, 100 % ) and ( 68%, 63%, 92% ) compared to control , in the average of shoot and root lengths and leaf area of Wheat and Corn seedlings respectively , which indicates the ability of Calcium utilisation to reduce sodium injuries in the affected saline media .

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