%0 Journal Article
%T Primary Study on Spatial Distribution Pattern of Chinese Cabbage Downy Mildew and Soft Rot<br>白菜霜霉病及软腐病空间分布型研究
%A DUAN Xian-de
%A MA Hai-xia
%A YANG Xin-dongCollege of Agronomy
%A Jilin Agricultural University
%A Changchun
%A China
%A College of Agriculture
%A Eastern Liaodong University
%A D
%A ong
%A <br>段显德
%A 马海霞
%A 杨信东
%J 吉林农业大学学报
%D 2010
%I 
%X The spatial distribution of Chinese cabbage downy mildew and soft rot was studied.The results showed that the distribution pattern of Chinese cabbage downy mildew was aggregation in 15 fields of which the number of lesion per plant was less than 20.And with the increase of lesion number,the aggregation degree decreased gradually.To the 4 fields of which the number of lesion per plant was more than 3 000, the distribution pattern was evenness.The distribution pattern of soft rot was mostly a random in those ...
%K Chinese cabbage
%K downy mildew
%K soft rot
%K spatial distribution pattern
%K optimum sampling number<br>白菜
%K 霜霉病
%K 软腐病
%K 空间分布型
%K 理论抽样数
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=298920A27C9BAA22346FCA384240FAA4&jid=74C612B26EF38BF0D4C997E3F9E167A1&aid=C8C75DF5A471D024FB89CC37F3577DB1&yid=140ECF96957D60B2&vid=9971A5E270697F23&iid=0B39A22176CE99FB&sid=B47A0E731AF43EB2&eid=5E25104E99903E8A&journal_id=1000-5684&journal_name=吉林农业大学学报&referenced_num=0&reference_num=57