重庆市低中海拔稻作区不同种植制度下稻田杂草种类与优势种群分析  

Weed Species and Dominant Populations in Rice Fields under Different Planting Systems in Low and Middle Altitude Rice-Growing Areas of Chongqing

作　　者：黄乾龙[1,2] 李贤勇 何永歆[1,2] 蒋刚 朱子超[1,2] 欧阳杰 管玉圣[1,2] 熊英 王楚桃[1,2] HUANG Qian-long;LI Xian-yong;HE Yong-xin;JIANG Gang;ZHU Zi-chao;OUYANG Jie;GUAN Yu-sheng;XIONG Ying;WANG Chu-tao(Institute of Rice Research,Chongqing Academy of Agricultural Sciences,Chongqing 400060,China;Chongqing Zhongyi Seed Co.Ltd.,Chongqing 400060,China)

机构地区：[1]重庆市农业科学院水稻研究所,重庆400060 [2]重庆中一种业有限公司,重庆400060

出　　处：《杂草学报》2019年第4期17-21,共5页Journal of Weed Science

基　　金：重庆市农业发展资金(编号:NKY2016-AA02);国家植物保护数据中心农业基础性长期性科技工作(编号:ZX04S230100)。

摘　　要：以水稻-冬闲-水稻和水稻-油菜-水稻2种种植制度下的稻田杂草为研究对象,采用五点取样法,监测了重庆市低中海拔稻作区的杂草种类,并分析了其优势种群。结果表明,水稻-冬闲-水稻种植制度下,监测区域内稻田杂草种类主要有8科10属11种;优势杂草为稗草[Echinochloa crusgalli(L.)Beauv.]和鸭舌草[Monochoria vaginalis(Burm.f.)Preslex Kunth.];水稻-油菜-水稻种植制度下,监测区域内稻田杂草种类主要有8科12属12种;优势杂草为空心莲子草[Alternanthera philoxeroides(Mart.)Griseb.]和看麦娘(Alopecurus aequalis Sobol.)。Weed species were monitored in low and middle altitude rice-growing areas of Chongqing,under the two planting systems:rice-winter fallow-rice and rice-oilseed rape-rice,using a five-point sampling method.Under the rice-winter fallow-rice system,most weeds belonged to eight families,10 genera and 11 species;Echinochloa crus-galli and Monochoria vaginalis were the dominant species.Under the rice-oilseed rape-rice system,most weeds belonged to eight families,12 genera and 12 species.The dominant weeds were Alternanthera philoxeroides and Alopecurus aequalis.

关 键 词：杂草种类 优势种群 不同种植制度 低中海拔稻作区 重庆 

分 类 号：S451[农业科学—植物保护]