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| Spot blotch (barley) ： ウィキペディア英語版 |
Spot blotch (barley)
Spot blotch is a disease of barley caused by ''Cochliobolus sativus''. The disease is found everywhere that barley is grown, but only causes significant yield losses in warm, humid climates.〔
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== Symptoms ==
Infections appear as dark, chocolate-colored blotches. The spots merge, eventually forming irregular necrotic patches on the leaves. Leaf spots may be surrounded by a zone of yellow leaf tissue of varying width. Spot may also appear on the leaf sheaths, necks and heads of the plant. Heavily infected leaves dry up completely, and infections on the flag leaf during kernel filling are the most serious.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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