Cain (1977) reported 11 percent moisture content
is the moisture that causes less mechanical damage in Soybean. Misra (1985) reported soybean seed lots with 12-
14 percent moisture content suffer less mechanical damage
after processing and retained their germination ability
(Misra, 1985).
Van Utrecht and colleagues (2000) also remarked
since embryonic axis in soybean is placed at surface the
seed is very susceptible to the injuries of impacts and
bruising. The moisture content less than 10 percent prone
seeds to split however high moistures may result in seed
crushing and bruising that decrease seed germination by
accelerating deterioration (Van Utrecht et al., 2000).
Rahman and colleagues (2004) at their research
observed the mechanical damage cause seed vigor
reduction. When the soybean harvested with 11-14 percent
moisture content had germination above 90 percent and its
vigor was 82 percent in accelerated aging test which was
the best results compare to the moistures above 14 percent
(Rahman et al., 2004).