Abstract
1) In this paper, the authors discussed about the relationships between the characters of stubble and the regrowth of herbage plants on the strength of the data of experiments formerly conducted. 2) There was high correlation between the amount of nitrogen in the stubble at the time of defoliation and the tiller number, regrowth-tiller number and the regrowth of herbage plants. 3) There was close relation between the amount of TAC content in the stubble at the time of defoliation and the regrowth of herbage plants, too. 4) It was assumed from these facts that abundant reserve substances and existence of the original tissue of regrowth (tiller, regrowth-tiller) were needed for the excellent regrowth of herbage plants. 5) Therefore, to expect the excellent growth after defoliation, the appropriate managements in herbage culture must be conducted considering these facts.