1. AHMED, M. S., S. K. De DATTA, D. HILLERISLAMBERS, D. KANTER, O. KYAW, Y. OHTA, S. SUBIYANTO and N. SUPAPOJ 1977 Standard scoring system for measuring elongation ability of deep-water rice. Proc. Workshop on Deep-Water Rice: appendix C.
3. SAENGPETCH, P. and K. HAMAMURA 1975 Detecting floating ability of rice at the seedling stage. Thai J. Agr. Sci. 8 (1) : 43-52.
4. SUGE, H. 1984 Effect of ethylene and gibberellic acid on the internode elongation in floating rice plants (preliminary) . Japan. J. Crop Sci. 53 (extra issue 2) : 156-157 (in Japanese) .
5. TAKAHASHI, K. and P. B. KAUFMAN 1984 Internode elongation of rice plant. VI. Regulation of internode elongation in rice seedlings by phytohormones. Ibid. 53 (extra issue 2) : 158 -159 (in Japanese) .