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Original Articles

Role of the perfect states in the epidemiology of the common Septoria diseases of wheat

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Pages 277-281 | Received 23 Sep 1977, Published online: 30 Jan 2012
 

Abstract

Perithecia of Mycosphaerella graminicola (Fuckel) Schroeter and Leptosphaeria nodorum Müller developed on the dead leaves of wheat stubble soon after harvest. The ascosporeswere liberated in the presence of free water on the dead leaf surface. They were still being liberated 8 months after harvest, when spore-trapping stopped. It is suggested that wind-borne ascospores initiate infections on young crops growing at a distance from wheat stubble.

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