The genetic and exploitation of heterosis in crops 
American Society of Agonomy, Crop Science od America 
 - 538 p.  23 cm. 
<br/><br/><label>ISBN: </label>0891185496 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Genética vegetal<br/>Mejoramiento genético--cultivos
<br/><br/><label>Dewey Class. No.: </label>631.523 3  / GEN 1999