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Barley reaction to Pyrenophora graminea based on the fungus movement
M. I. E.
Arabi A B,
M.
Jawhar A
A
Plant Pathology Division, PO Box 6091, AECS, Damascus, Syria.
B
Corresponding author. Email: miaraabi@aec.org.sy
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Australasian Plant Pathology 34(3) 405–407 http://dx.doi.org/10.1071/AP05046
Submitted: 20 November 2004
Accepted: 21 March 2005
Published online: 16 September 2005
Abstract
Systemic movement of Pyrenophora graminea in five barley genotypes was used to quantify the infection level of leaf stripe disease. The systemic movement of the fungus was slower in the resistant than in the susceptible genotypes and enabled easy differentiation among them. Significant correlations were found (P = 0.001) between relative in vitro value and both percentage yield loss (r = 0.94) and disease incidence (r = 0.97) obtained from the field experiment. P. graminea movement within barley plants can be a useful criterion when differentiating resistant from susceptible genotypes.
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Australasian Plant Disease Notes
