Calha, I M <br/><br/>
Are Portuguese Echinochloa spp. populations still susceptible to propanil?  [electronic resource] 

 -  Communications in agricultural and applied biological sciences  2009 
 - 515-9 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, Non-U.S. Gov't 
<br/><br/><label>ISSN: </label>1379-1176 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data Collection<br/>Echinochloa--drug effects<br/>Geography<br/>Herbicides--pharmacology<br/>Humans<br/>Oryza--growth & development<br/>Portugal<br/>Propanil--pharmacology<br/>Regression Analysis<br/>Seeds--drug effects