The intact seeds are able to adjust the rate of
water uptake at germination and vigor tests and protect the
embryo from eventual damages of fast water uptake,
however seeds with damaged seed coat are not able to
regulate water uptake rate that result in increasing of
spoiled seeds and weak results of germination tests.
Regarding to above subjects and the results of
this study it can be concluded there is a considerable
difference between soybean cultivars in resistance to
mechanical damage which in this study the cultivar of
D.P.X had the highest resistance and Sahar cultivar had
the lowest resistance, also the seed moisture content is
important to determine the extent of mechanical damage
and 12-14 percent moisture content of seed is the best
moisture content to minimize the mechanical damage.