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gan shu pai zhong qi yan fang bing hai
Author(s): XUE Yuxia
Pages: 54-
55
Year: 2015
Issue:
14
Journal: Farm Machinery
Keyword: 甘薯属; 排种; 草质藤本; 近地表; 褐色坏死斑; 发育不良; 糠心; 上生; 苗根; 粉状物;
Abstract: <正>甘薯属绕草质藤本,一年生或多年生蔓生草本。又名山芋、红芋、番薯、红薯、白薯、地瓜、红苕等,因地区不同而有不同的名称。甘薯排种期,也是病害茎线虫病、病毒病和黑斑病高发期,生产中要注意防病。1病害特征(1)茎线虫病:又名糠心病、空心病,发病薯苗在近地表处,外观变青,没有明显边缘和病斑,苗根部受害,在表皮上生有褐色晕斑,造成甘薯发育不良、矮小发黄。
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