Heterosis; a record of researches directed toward explaining and uti lizing the vigor of hybrids. 

 - New York :    Hafner,    1964, [c1952] 
 - ix, 552 p. :    ill. ;    24  cm 
<br/><br/>  Papers presented at the heterosis conference held at Iowa State Coll ege, June 15 to july 20, 1950 
<br/><br/>Includes bibliographical references : p. 517-535 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Heterosis.<br/> Hybridization.
<br/><br/><label>Dewey Class. No.: </label>575.28