抄録
1. Under the too deep sowing, not only the 1st internode but also the 2nd internode makes large elongation. 2. The first tillering bud, which is usually located on the 1st stem-node, was observed in this case to be forced to move from the original position and placed on the surface of the 1st internode. 3. It appears just like an adventitious bud originated from the 1st internode, but microscopical examination proved that this is a true first tillering bud, but located at abnormal position.
