How does the concentration of NaCl effect the germination of seeds.?

Question

seeds: broad beans or cress seeds

Answer 1

Salt kills germinating seedlings by removing the water from their cells (plasmolysis, exomosis). Therefore, in general, there is a negative relationship between the concentration of NaCl (above a small baseline value*) and the percent germination of seeds.

*Salts are present naturally in soil, and very low concentrations typically do not appreciably affect the germination of seeds.

For more, see:

http://www.enviroliteracy.org/article.ph...

and

http://www.agr.hr/jcea/issues/jcea7-2/pd...