%0 Journal Article
%T Stress-resistance of weedy rice Luolijing (Oryza sativa)<br>杂草稻落粒粳的抗逆境特性研究
%A YU Liuqing~
%A AMartin Mortimer~
%A XUAN Songnan~
%A LU Yongliang~
%A ZHOU Yongjun~
%A <br>余柳青
%A A.Martin Mortimer
%A 玄松南
%A 陆永良
%A 周勇军
%J 应用生态学报
%D 2005
%I 
%X Weedy rice Luolijing (Oryza sativa) is generated in Dandong, Liaoning Province of Northeast China. Its plant height is taller than normal planted rice varieties, and its caryopsis is medium or long in size, which dropped easily after matured. The color of the caryopsis shell is straw-like or yellow alternated with black-gray. The spikelet is with or without awns, and the length of the awns is 2-12 cm. The 1000 caryopsis weight is 23.5 g, and the hull is nacarat. The seed germination rate at 13-38 degrees C is > 88%. Under 2.5-10 cm water flooding, the plant dry weight reduced 50%-69%. At seedling stage, Luolijing had a stronger resistance capability against barnyardgrass (Echinochloa crusgalli var. mitis) than an alellopathic rice I-kung-pao, which meant that Luolijing had no allelopathic function. The Luolijing had a tolerance to 0.5% saline-alkaline solution.
%K Weedy rice
%K Luolijing (Oryza sativa)
%K Biology
%K Stress-resistance<br>杂草稻
%K 落粒
%K 特性研究
%K 逆境
%K 栽培品种
%K 化感潜力
%K 影响因子
%K 化感作用
%K 中长型
%K 千粒重
%K 发芽率
%K 幼苗期
%K 无芒稗
%K 植株
%K 颖果
%K 成熟
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=B90FB222204ED479&yid=2DD7160C83D0ACED&vid=7801E6FC5AE9020C&iid=E158A972A605785F&sid=E5ED9059DE792E50&eid=2A92ABD90588B251&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=24&reference_num=20