中国水稻科学

中国水稻科学

• 研究简报 • 上一篇    下一篇

8种稗草(Echinochloa）对扫茀特耐药性的比较

王庆亚1; 乔丽雅1 ; 魏杰钢1 ; 董立尧2 ; 李扬汉1   

  1. 1南京农业大学 生命科学学院, 江苏 南京 210095; 2南京农业大学 植物保护学院, 江苏 南京 210095)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2003-10-10 发布日期:2003-10-10

Tolerance of Eight Species of Echinochloa to Pretilachlor

WANG Qing-ya 1; QIAO Li-ya 1; WEI Jie-gang 1; DONG Li-yao 2; LI Yang-han 1   

  1. （ 1 College of Life Science; Nanjing Agricultural University; Nanjing 210095; China; 2 College of Plant Protection; China）
  • Received:1900-01-01 Revised:1900-01-01 Online:2003-10-10 Published:2003-10-10

PDF

摘要： 2001年10月采集南京地区8种稗草（Echinochloa）种子，分别用0、0.01、0.10、1.00、10.00 mg/L扫茀特浸稗草种子,萌发后测定其形态、结构及α淀粉酶活性。结果表明,无芒稗的株高、叶片及叶鞘细胞的长度、α淀粉酶活性受扫茀特抑制的程度最低,旱稗、稗、西来稗次之,光头稗最高。说明不同稗草的种及变种间存在耐药性的差异,其中无芒稗的耐药性最强,光头稗最弱。关键词:

关键词: 稗草, 杂草, 扫茀特, 耐药性, 除草剂

Abstract: The seeds of eight species and varieties of barnyar dgrass were treated with pretilachlor. Differences in bud length, leaf cells length, coleoptile cells length, and α-amylases activities of barnyardgrass after the herbicide treatment were found among eight species and varieties of barnyardgrass. Control percentage of the herbicide to Echinochloa crusgalli var. mitis was the lowest, and E. colonum was the highest among the tested barnyardgrass. It seemed th at the different species and varieties of barnyardgrass have various tolerance to the pretilachlor.

Key words: Echinochloa, weed, pretilachlor, herbicide tol erance, herbicide