1. Arai, K., S. Matsuo and T. Matsuda. 1980. Physiological studies in forced production of strawberry. VI. Earliness of fruit production in pot raised transplants. Agric. and Hortic. (Nogyo-oyobi-Engei) 55: 561–562 (In Japanese).
2. Darrow, G. M. 1966. The Strawberry: History, Breeding and Physiology. Holt, Rinehart and Winston. New York.
3. Fujimoto, K. and M. Kimura. 1970. Studies on flowering of strawberry. III. Effect of nitrogen on flower bud differentiation and development. Abstr. Japan. Soc. Hort. Sci. Spring Meet.: 174–175 (In Japanese).
4. Ito, H. and T. Saito. 1962. Studies on the flower formation in the strawberry plants. I. Effects of temperature and photoperiod on the flower formation. Tohoku J. Agr. Res. 13: 191–203.
5. Matsumoto, O. 1987. Studies on the cold-stored strawberry plants. VII. Chilling-sensitivity of various seedling age. Bull. Yamaguchi Agri. Exp. Sta. 39: 1–8 (In Japanese with English abstract).