摘要
本试验表明链格孢菌（Ａｌｔｅｒｎａｒｉａｔｅｎｕｉｓ）是引致小麦黑胚病的主要病原菌，占病原分离物９１％。黑胚病虽然对种子的发芽没有明显影响，但显著影响出苗率和幼苗生长力。当前推广的品种中，黑胚率为１１．１％左右，严重的高达４２．８％。
Of the black embryo grains in the currently cultivated commercial
wheat varieties 91.4%was caused by Alternaria tenuis,and only 8.6%was resulted from
Helminthosporium sativum. Black embryo disease had no obvious effect on wheat germination,
but greatly inhibited emergence,viability and growth potential of seedlings.The infection rate of
black embryo disease in most commercial varieties tested was around 11.1%,and only a few
seriously infected up to 42.8%. But the actual rate of infected grains was more higher than that
caught by the nakeeye.
出处
《植物保护》
CAS
CSCD
北大核心
1995年第3期20-21,共2页
Plant Protection
关键词
小麦
黑胚病
链格孢菌
出苗率
black embryo disease,Alternaria tenuis,emergence rate of
seedling.
