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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Black point (disease) ： ウィキペディア英語版 Black point (disease) Black point (kernel smudge or just smudge) is a fungal disease that affects wheat, barley and rye. It is caused by various species of Alternaria, Fusarium, and Helminthosporium, and possibly other fungal genera. The fungus forms after the seeds have set but while they are still green and it is potentiated by high humidity. Infected areas are brown to black in color, and as the disease spreads the kernels may become shriveled. Occasionally the infected areas have a reddish tinge. Some authorities〔 make a distinction between "black point" and "smudge". For them the disease is "black point" from initial infection until more than half of the kernel is infected, or when the disease has entered into the seed's crease.〔 ==Notes and references== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Black point (disease)」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.