Effect of common root rot (Cochliobolus sativus) on yields of barley under experimental conditions in northern Syria
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Citation
Joop Van Leur, M. Z. Alamdar, S. Khawatmi. (1/1/1997). Effect of common root rot (Cochliobolus sativus) on yields of barley under experimental conditions in northern Syria. Australian Journal of Agricultural Research, 48 (3), pp. 351-358.
Abstract
The impact of Cochliobolus sativus on grain yield of different barley cultivars was studied for
3 seasons in northern Syria by comparing plots with and without artificial inoculation. Distributing oat
kernels infested with C. sativus next to barley seed and inoculating seed with C. sativus conidia in a
peat carrier resulted in an increase in common root rot symptoms on the subcrown internode. Subcrown
internodes were shorter in inoculated than uninoculated plots. The effect of inoculation differed greatly
among cultivars and years. Highest losses from the common root rot occurred under dry growing
conditions, whereas a significant yield increase was noted on 2 susceptible lines grown under adequate
moisture. As common root rot can reduce barley yield in unfavourable environments, the disease
should be considered by crop improvement programs aimed at low-rainfall zones in Mediterranean
environments.
