Effect of environmental conditions on the development of disease symptoms caused by Puccinia recondita on winter wheat seedlings
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Institute of Plant Protection Miczurina 20, 60-318 Poznań, Poland
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Andrzej Wójtowicz
Institute of Plant Protection Miczurina 20, 60-318 Poznań, Poland
Journal of Plant Protection Research 2007;47(2):161-166
The objective of the study was to determine the effect of leaf wetness period and air temperature on development of disease symptoms caused by Puccinia recondita on winter wheat. The experiments were carried out in growth chamber at the Institute of Plant Protection in Poznań. Seedlings of a susceptible winter wheat cultivar Mikon, were artificially inoculated with urediniospores of P. recondita and incubated in temperature of 15 and 20°C. The period of duration of leaf wetness varied from 2 to 14 hours. Disease symptoms on seedlings at 20°C appeared 7 days after inoculation. Reduction of temperature to 15°C resulted in the elongation of latency period to 8 days. The relationship between leaf wetness period and disease symptoms severity was also observed. The gratest number of urediniospores in both tested temperatures were observed on plants exposed to 14 hours of leaf wetness. In temperature of 20°C 4 hours of wetness duration was enough to guarantee infection and the appearance of P. recondita pustules, whereas in 15°C at least 10 hours of wet period was needed to cause disease symptoms development. The experimental results were used to produce two equations describing relation between leaf wetness and symptoms development in tested temperatures
The authors have declared that no conflict of interests exist.
Eversmeyer M.G. 1972. Environmental influence on the establishment of Puccinia recondita infection structures. Plant Dis. 72: 409–412.
van Hees-Boukema L. Zadoks L. 1986. Postponed germination of Puccinia recondita urediospores deposited on wheat seedlings. II. Infectivity of urediospores after postponed germination. Neth. J. PI. Path. 92: 71–80.
Statler G.D., Nordgaard J.T. 1980. Leaf wettability of wheat in relation to infection by Puccinia recondita f. sp. tritici. Phythopathology 70: 641–642.
Tapsoba H., Wilson J. P., 1997. Effects of temperature and light on germination of urediniospores of the pearl millet rust pathogen, Puccinia substriata var. indica. Plant Dis. 81: 1049–1052.
Vallavielle-Pope C., Huber L., Leconte M., Goyeau H. 1995. Comparative effects of temperature and interrupted wet periods on germination, penetration, and infection of Puccinia recondita f. sp. tritic i and P. striiformis on wheat seedlings. Phytopathology 85: 409–415.
Vallavielle-Pope C., Huber L., Leconte M., Bethenod O. 2002 Preinoculation effects of light quantity on infection efficiency of Puccini striiformis and P. triticina on wheat seedlings. Phytopathology 92: 1308–1314.
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