Summary
Radiation induced semi-dwarf mutants derived from five japonica type varieties of rice were studied with regard to their photoperiod-sensitivity, thermo-sensitivity and the number of days to heading. The experiment was carried out under the natural conditions at Taipei. The coefficient of photoperiod-sensitivity (T.D.M.) and thermo-sensitivity (byx. z and byz. x) as developed by Oka (1954) were estimated for the mutants in comparison with their original varieties.
It was observed that these various physiological characters could be altered rather easily by mutations. Mutants showed wider ranges in both positive and negative directions than their original varieties in all the physiological characters studied. Even though heading date depends on both photoperiod-sensitivity and thermo-sensitivity, it was estimated which of the two contributed more to the induced earliness in each mutant. This offers a basis for selecting early maturing lines of rice.
Similar content being viewed by others
References
Akemine, M. & K. Hoshika, 1937. On the response of 2–3 varieties of rice to daylength and temperature. Sapporo J. Agric. Forestry 28 (In Japanese).
Akimoto, S. & T., Togari, 1939. Varietal differences in panicle development of rice with references to early or late transplanting. Proc. Crop Sci. Japan 11: 168–184 (In Japanese).
Fuke, Y., 1931. On the short day and illumination treatments applied to rice, with emphasis on the time and duration of treatments. J. imp. agric. Exp. Stn. Tokyo 1: 263–286 (In Japanese).
Gustafsson, Å., 1947. Mutation in agricultural plants. Hereditas 33: 1–100.
Hsu, C. C., 1936/1938. Effects of the seasonal changes in daylength and temperature on crops at the propagation stage. Agric. Hort. 11 (1899), 13 (1170) (In Japanese).
Hsieh, S. C., 1961. Effects of X-rays and thermal neutrons on chromosome of rice. Mutations in rice induced by X-rays, IV. Bot. Bull. Acad. sin. 2 (1): 43–49.
Hsieh, S. C. & S. T., Yen, 1966. Genic analysis in rice, VII. Linkage relationship of an induced dwarfness gene, d42. Bot. Bull. Acad. sin. 7 (1): 82–87.
Haq, M. S., M. M. Rahman, A. Mansur & R. Islam, 1971. Breeding for early, high-yielding and disease-resistant rice varieties through induced mutations. Rice breeding with induced mutations, III. IAEA tech. Rep. Ser. No. 131: 35–46.
Kakizaki, Y., 1938. A comment on growth physiology and yield of rice plants. Agric. Hort. 13: 7–14 (In Japanese).
Katayama, T. & gnH. I., fnOka, 1959. Photoperiodic response of Oryza species. A. Rep. natn. Inst. Genet. Japan 1958 (9): 44–46.
Kawai, T., 1963. Mutations in rice induced by radiation and their significance in rice breeding. I. Mutations by radiophosphorous. Bull. natn. Inst. Agric. Sci. (Japan) 10: 1–75.
Kudo, M., 1966. Photoperiodic response and genetic analysis of some mutants on heading character induced from Norin-No. 8 in rice. Jap. J. Breed. 16: 57–58.
Kudo, M., 1967. Gene analysis and photoperiodic response of some early maturing mutants induced from Norin-8 in rice. Jap. J. Breed. 17 (Suppl. Vol. 1): 36–37.
Morinaga, T., T., Iura & K., Kashiwagi, 1938. Effect of temperature and daylength upon the growth and the time of ear emergence of South and North varieties of rice. Agric. Hort. 13 (1587–1594) (In Japanese).
Matuo, T. & T., Nakajima, 1960. Genetical studies on heading in rice plants. I. Characteristics of some mutants strains on heading time induced by X-ray or gamma rays. Jap. J. Breed. 10: 137–142.
Matuo, T. & T., Onozawa, 1965. Genetical studies on heading time in rice. III. Genic-analysis on heading time of some late mutants induced by radiation. Jap. J. Breed. 15: 43–46.
Mikaelsen, K., Z., Sajo & J., Simon, 1971. An early maturing mutant: Its value in breeding for disease resistance in rice. Rice Breeding with induced mutations, III: 97–101 IAEA tech. Rep. Ser. No. 131.
Oka, H. I., 1954. Phylogenetic differentiation of the cultivated rice plant. III. The response to day-length and temperature and number of days of growth period. Jap. J. Breed. 4: 92–100 (In Japanese).
Oka, H. I., 1958. Photoperiodic adaptation to latitude in rice varieties. Phyton 11 (2): 153–160.
Oka, H. I. & W. T., Chang, 1960. Survey of variations in photoperiodic response in wild Oryzae species. Bot. Bull. Acad. sin. 1: 1–14.
Phillis, E., 1965. The effect of the photo- and thermo-periods on the growth of rice. CSIRO, Division of Land Res. Regional Survey, Canberra, tech. Memo. 65/2: 6 p.
Scripchinsky, B., 1940. The factor which stimulates to develop the rice into flowering under tropical conditions. Trop. Agric. (Ceylong) 95: 205–211.
Sircar, S. M., 1948. Vernalization and photoperiodism in the tropics. Vernalization and photoperiodism—A Symposium: 121–128. Chronica Botanica. Waltham. Mass.
Yamagata, H. & K., Syakudo, 1960. Studies on the utility of artificial mutations in plant breeding. I. Gamma-ray sensitivity of rice and induced aberrant plants in the X2 generation. Jap. J. Breed. 10: 153–162.
Yu, C. J. & Y. T., Yao, 1969. Photoperiodic studies on rice. V. The index of daylength sensitivities of certain varieties of rice. Bot. Bull. Acad. sin. 10: 51–59.
Author information
Authors and Affiliations
Additional information
Taiwan Agricultural Research Institute, Taipei, Taiwan, Republic of China.
Rights and permissions
About this article
Cite this article
Hsieh, S.C., Chang, T.M. Radiation induced variations in photoperiod-sensitivity, thermo-sensitivity and the number of days to heading in rice. Euphytica 24, 487–496 (1975). https://doi.org/10.1007/BF00028218
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00028218