CEREALS 



321 



fection during the period of susceptibility, i.e., the very- 

 young seedling condition. The same treatment is effec- 









s>; ^m/ 



1 N^^ m¥ 



Fig. 138. — Oat plants, smutted and healthy ; note difference in height. 

 Original. 



tive for the stinking smut of wheat. The loose smut of 

 wheat gaining entrance to the plant before the grain 



