Influence of Losing Moisture Content on Deterioration of Vatica astrotricha Seed

Seed of Vatica astrotricha and its embryo had an increment in superoxide content and iodine number as the moisture content of the seed lost. In this process, the plasma membrane constituents of embryo cells are oxidized, so that its ultrastructure is destroyed, semipermeable function lost and then the deterioration of embryo occurs. This may be the fundamental reason for seed deterioration. Seed vigour has a true correlation with the "coleorhize" quality. Seed maturity influences the plumule growth obviously, the poor-maturity seeds lose their moisture content faster, and lose their vigour more easily.