Singhal, N. C. (ed.) <br/><br/>
Hybrid seed production in field crops :  principles and practices / 
by Singhal, N. C. (ed.). 
 - Ludhiana :  Kalayani,  2003. 
 - vi, 308pages :  illustrations. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>8127207993 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Field crop--Breeding.