%0 Journal Article
%T Interference of allelopathic rice cultivars on barnyardgrass under different water irrigation and rice plant density<br>不同水层和密度条件下化感作用水稻对无芒稗的干扰控制作用
%A XU Zhenghao
%A HE Yong
%A WANG Yiping
%A YU Gusong
%A <br>徐正浩
%A 何勇
%A 王一平
%A 俞谷松
%J 应用生态学报
%D 2004
%I 
%X Pot culture experiments were conducted to examine the effects of water irrigation and rice plant density on the interference of allelopathic rice on barnyardgrass (Echinochloa crus-galli).The results showed that under water irrigations,allelopathic rice cultivars Xiayitiao,Gumei 2 and Zhong 156 significantly reduced the plant height of barnyardgrass than non-allelopathic rice cultivars Xiushui 63 and Chunjiang 11.Barnyardgrass plants grew shorter as rice plant density increased.Allelopathic rice cultivars Jizaoxian and Gumei 2 interfered with barnyardgrass,even at their densities as low as 4 plants per pot,and the interference reduced plant height of barnyardgrass significantly compared with the non-rice control.Allelopathic rice cultivars Xiayitiao,Jizaoxian,PI312777,TN1,Gumei 2 and Zhong 156 at 32 rice plants per pot inhibited the growth of barnyardgrass significantly than Chunjiang 11.
%K Rice
%K Barnyardgrass
%K Water irrigation
%K Rice plant density
%K Interference<br>水稻
%K 无芒稗
%K 水层
%K 密度
%K 干扰控制
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=674B8E851B00C348&yid=D0E58B75BFD8E51C&vid=23CCDDCD68FFCC2F&iid=9CF7A0430CBB2DFD&sid=393263B6B7532F22&eid=5A9F02B7D2F9BAD8&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=7&reference_num=25