PLATE 41 



Germinating wheat kernels, showing the prevention of post-treatrnent injury by 

 washing the seed with water immediately after treatment. Susceptibility of seeds 

 injured by treatment to Rhizopus and other saprophytes is also shown. This seed 

 had been kept in open tumblers for 30 days after treatment. 



A. — Treated with 0.2 per cent solution, which was not washed off before drying, 32 

 per cent germination. 



B. — Treated with 0.2 per cent solution, which was washed off before drying, 76 per 

 cent germination. 



C. — Treated with 0.1 per cent solution, which was not washed off before drying, 52 

 per cent germination. 



D. — Treated with 0.1 per cent solution, which was washed off before drying, 74 

 per cent germination. 



Control germinated 74 per cent. 



