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The impact of NaCl solution concentrations on the germination Phaseolus vulgaris

Submitted by angelasalaza on Wed, 09/12/2018 - 17:55

The experiment had 8 sets of beans, Phaseolus vulgaris, were watered down with different  concentrations of sodium chloride 0.025%, 0.05%, 0.1%, 0.5%, 1.0%, 2.5%, 5.0%. The experiment was performed to determine whether salt concentrations directly affected with the bean’s germination and root length. The beans were placed into different solutions of specific NaCl concentration. Set 1 had been watered with a solution of 0% NaCl, this had been the control group of the experiment to determine whether salt had any effect on the other beans, the other seven bags were individually watered with the sodium chloride concentrations . As the concentrations of NaCl increased the percentages of germination decreased along with root length, set one, 0% NaCl solution had the third highest root growth of 7 cm, set two 0.025% NaCl  solution had the highest root growth 8.5 cm , as NaCl concentration increased after the third set each the roots showed lower percent of germination decreasing from by 90% to 0% in total germination. Different to the first three sets of lower concentrations of NaCl solutions the beans that did germinate produced shoots in lesser lengths 0.05% 6 cm, 0.1% 7.5 cm, 0.5% 5.6 cm, 1.0% 4.7 cm, 2.5% 0cm, 5.0% ocm. The beans that did not germinate produced a mold, appeared wrinkled and also shriveled. Overall the experiment did show that increasing the NaCl solution would affect a bean’s germination.