1. Beppu, K. 2000. Morphological and physiological studies on reproduction of sweet cherry in warm climate. Ph. D. Thesis. Kyoto Univ., Kyoto (In Japanese with English abstract).
2. Beppu, K. and I. Kataoka. 1998. Relationship between an occurrence of cracking and fruit character of sweet cherry. Tech. Bull. Fac. Agr. Kagawa Univ. 50: 41–48 (In Japanese with English abstract).
3. High temperature rather than drought stress is responsible for the occurrence of double pistils in `Satohnishiki' sweet cherry
4. Beppu, K. and I. Kataoka. 1999b. Characteristics of pollen germination in sweet cherry (Prunus avium L.). Tech. Bull. Fac. Agr. Kagawa Univ. 51: 5–13 (In Japanese with English abstract).
5. Artificial shading reduces the occurrence of double pistils in ‘Satohnishiki’ sweet cherry