(1) The author investigated the storage of Tulip bulbs (Variety William Pitt) under low temperatures. And the plots in these experiments were as shown in Fig. 1.
(2) Low temperature (20℃) and dry humidity (60%) conditions from July 20 to September 10 are thought to be suitable for the development of the inmost vegetation points.
(3) There was no definite corrlation between the change of carbohydrates in the tulip seed bulbs and the inmost vegetation point during the strage season.