用蛭石培养 ,研究水稻种子不同播种深度与幼苗根茎发生的关系 ,并对水稻的根茎现象进行了初步的探讨。结果表明 :蛭石培养过程中根茎的发生与水稻种子植入深度有密切的关系 ,根茎的伸长长度随着播种深度的增加而增加 ;水稻根茎长度品种间有差异 ,不同的水稻品种在相同的播种深度下根茎的表现不一样 Using vermiculite to study the relationship between the different sowing depth of rice seeds and the seedling rhizomes, and preliminary study on the rhizome phenomenon of rice. The results showed that the occurrence of rhizome during the culture of vermiculite was closely related to the depth of rice seed implantation, and the elongation of rhizome increased with the depth of sowing. There were differences among rhizome length varieties, The sowing depth of rhizome performance is not the same