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

应用生态学报 ›› 2004, Vol. ›› Issue (9): 1580-1584.

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

徐正浩^1,2,3, 何勇¹, 王一平², 俞谷松³

1. 浙江大学生物系统工程与食品科学学院, 杭州 310029;
2. 中国水稻研究所, 杭州 310006;
3. 浙江省绍兴市越城区农林水利局, 绍兴 312000

收稿日期:2003-12-04 修回日期:2004-03-17
通讯作者: 徐正浩,男,1964年9月生,博士后,主要从事杂草生态控制和植物化感作用、植物对重金属的超富集积累机制和分子机理研究,发表论文10余篇.Tel:0571-86971227:E-mail:xzh640909@sohu.com
基金资助:
中国博士后基金项目(20030034522);国家自然科学基金资助项目(30170620)

Interference of allelopathic rice cultivars on barnyardgrass under different water irrigation and rice plant density

XU Zhenghao^1,2,3, HE Yong¹, WANG Yiping², YU Gusong ³

1. College of Biosystem Engineering and Food Science, Zhejiang University, Hangzhou 310029, China;
2. China Wational Rice Research Institute, Hangzhou 310006, China;
3. Bureau of Agriculture Forest, Water of Yuecheng, Shaoxing, Zhejiang, Shaoxing 312000, China

Received:2003-12-04 Revised:2004-03-17

摘要/Abstract

摘要： 不同水层下水稻对无芒稗的干扰控制作用研究表明,水稻化感作用品种吓一跳、谷梅2号和中156对无芒稗的株高抑制作用比无化感作用品种秀水63和春江11呈显著性差异.随盆栽水稻密度增加,水稻对无芒稗的干扰控制作用加大.在每盆4株栽植密度下,水稻化感作用品种鸡早籼、谷梅2号显著抑制无芒稗植株株高;在每盆32株密度时,水稻化感作用品种吓一跳、PI312777、TN1等对受控无芒稗的干扰控制与无化感作用品种春江11相比,呈显著性水平.

关键词: 水稻, 无芒稗, 水层, 密度, 干扰控制

Abstract: 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.

Key words: Rice, Barnyardgrass, Water irrigation, Rice plant density, Interference

中图分类号:

Q946

徐正浩, 何勇, 王一平, 俞谷松. 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[J]. 应用生态学报, 2004, (9): 1580-1584.

XU Zhenghao, HE Yong, WANG Yiping, YU Gusong . Interference of allelopathic rice cultivars on barnyardgrass under different water irrigation and rice plant density[J]. Chinese Journal of Applied Ecology, 2004, (9): 1580-1584.

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