In the examination of the germination of cabbage, we know there some inclusion in the seed capsule what can restrain the bourgeon of the holly seed.

• 通过种皮浸提液对白菜种子发芽、苗高及根长生长影响的研究，表明冬青种子种皮中存在着抑制物质，这些抑制物质对冬青种子萌发起着一定的抑制作用。