Summary
The effect of an inoculation with Pyricularia oryzae (isolate P06-6) on net leaf photosynthetic rate of rice (Oryza sativa) was studied with four cultivars. Measurements were taken on the sixth leaf of the main culm of plants in the early tillering stage. On cultivars CO39, IR50 and IR64 a susceptible infection type developed, but a clear difference in relative infection efficiency of the cultivars was observed. The highest number of lesions developed on leaves of CO39, whereas the lowest number was found on leaves of IR64. For all three cultivars the effect of a single lesion on the reduction in net leaf photosynthetic rate was found to be equal to a reduction in leaf area of three times the area occupied by the visible lesion. On IR68, a cultivar with complete resistance, brown specks of pinpoint size appeared without any effect on net leaf photosynthetic rate.
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References
Ahn, S.W. & S.H. Ou, 1982. Quantitative resistance of rice to blast disease. Phytopathology 72: 279–282.
Azcón-Bieto, J., 1983. Inhibition of photosynthesis by carbohydrates in wheat leaves. Plant Physiol. 73: 681–686.
Bastiaans, L., 1991. Ratio between virtual and visual lesion size as a measure to describe reduction in leaf photosynthesis of rice due to leaf blast. Phytopathology 81: 611–615.
Jeanguyot, M., 1983. Rice blast and its control. Mémoires et travaux de l'IRAT no. 3. IRAT. 53 pp.
Justesen, J.H. & P.M.L. Tammes, 1960. Studies on yield losses. I. The self-limiting effect of injurious or competitive organisms on crop yield. Tijdschr. Plantenziekten 66: 281–287.
Kaiser, W.M., 1987. Effects of water deficit on photosynthetic capacity. Physiol. Plant. 71: 142–149.
Ku, S.B., G.E. Edwards & D. Smith, 1978. Photosynthesis and nonstructural carbohydrate concentration in leaf blades of Panicum virgatum as affected by night temperature. Can. J. Bot. 56: 63–68.
Mackill, A.O. & J.M. Bonman, 1986. New Hosts of Pyricularia oryzae. Plant Dis. 70: 125–127.
Parlevliet, J.E., 1979. Components of resistance that reduce the rate of epidemic development. Ann. Rev. Phytopathol. 17: 203–222.
Ralston, M.L. & R.I. Jennrich, 1979. DUD, a derivative-free algorthm for nonlineair least squares. Technometrics 1: 7–14.
Roumen, E.C., 1992. Effects of leaf age on components of partial resistance in rice to leaf blast. Euphytica 63: 271–279.
Smedegaard-Petersen, V. & K. Tolstrup, 1985. The limiting effect of disease resistance on yield. Ann. Rev. Phytopathol. 23: 475–490.
Toriyama K., 1975. Recent progress of studies on horizontal resistance in rice breeding for blast resistance in Japan. In: G.E. Gàlvez (Ed.), Proc. Seminar on Horizontal Resistance to the Blast Disease of Rice, CIAT series CE-9, pp. 65–100. Cali, Colombia.
Von Caemmerer, S. & G.D. Farquhar, 1981. Some relationships between the biochemistry of photosynthesis and the gas exchange of leaves. Planta 153: 376–387.
Yeh, W.H. & J.M. Bonman, 1986. Assessment of partial resistance to Pyricularia oryzae in six rice cultivars. Plant Pathology 35: 319–323.
Yoshii, H., 1937. Pathological studies of rice blast caused by Pyricularia oryzae. III. Pathohistological observations of diseased plants. Ann. Phytopathol. Soc. Jpn. 7: 289–304.
Zadoks, J.C. & R.D. Schein, 1979. Epidemiology and plant disease management. Oxford University Press, New York. 427 pp.
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Bastiaans, L., Roumen, E.C. Effect on leaf photosynthetic rate by leaf blast for rice cultivars with different types and levels of resistance. Euphytica 66, 81–87 (1992). https://doi.org/10.1007/BF00023511
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DOI: https://doi.org/10.1007/BF00023511