Abstract
In the previous papers, the authors have reported some interesting results concerning the correlation between growth of the leaves and development of the roots at the successive nodes in the rice plants and in the wheats. In this experiment with Zea mays L., the authors studied again on the correlation described in the previous papers. 1. Period of the leaf elongation in the Zea mays L. was shorter than that in the rice plants. This might possibly be due mainly to the numerous leaves of the main stem and short vegetation period. Five to six leaves were elongating together at the same time in a given period of the growth. 2. The nodal roots of a certain node shooted during the two leaves of the main stem emerged from under-nodes to upper ones in the Zea mays L.. 3. Therefore the upper the nodes and the roots were located, the more fresh, numerous and the bigger they were. 4. The authors considered that such correlation (mentioned above) between leaves and roots in the cereals may be ascribed to the development of the node
