AMUSAN ,Idris Olawole <br/><br/>
Hrterotic patterns among mid-altitude and lowland inbred lines of maize ( zea mays L.) 
Idris Olawole Amusan 
 -  Department of plant Science ,Ahmadu Bello University , Zaria  2002 
 - xvii ,137leaves : ill. ,tables 
<br/><br/> Bibliography : leaf 104- 111