Ching-Huan, Cheng <br/><br/>
Biological interrelations between Nephotettix Impicticeps Ishihara and some resistant and susceptible rice varieties 
Cheng Ching-Huan 
 - University of the Philippines, Laguna  College of Agriculture  1969 
 - xi, 117 p. ; 29 cm. 
<br/><br/> Photocopy 
<br/><br/>Thesis (Ph.D.)-College of Agriculture, University of the Philippines, 1969 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rice--Disease and pest resistance<br/>Rice--Diseases and pests<br/>Leaf--hoppers<br/>Planthopprs