Gibberellic acid effect in the in creasing of fenugreek Plant ( Trigonella foenum- graecum L.) Tolerance for sodium chloride under hydroponics system conditiones.


The experiment has been made by using the the nutrient solution unit in the green house of the Biology Department , College of Education Ibn Al- Haitham, Baghdad University during the growing season of 2008 – 2009 to now effect of three concentrations 0 , 50 ,100 mM . Lˉ¹ of sodium chloride and four concentrations 0 , 25 , 50 ,100 ppm of gibberellic acid and interaction bettween them in some growth parameters (fresh weight of root, number of branches and concentration of N,P,K,Ca,Mg in root)of fenugreek plant. The experiment was accompliched as a completely randomized design(CRD) by three replicates then including 36 plastic pots in nutrient solution unit, the results showed the increase in sodium chloride concentration from 0_100Mm.L ̄1 in nutrient solution had negative effects in the mentioned parameters growth. Results showed that gibberellic acid had an important role in decreasing the harmful effects of sodium chloride in studied parameters.