PLATE 77 



Effect of presoak method used with copper-sulphate treatment of wheat: 



1. Fulcaster wheat: A, B, control, 8i per cent germination; C, D, seeds treated 

 with copper sulphate i to 80 for yi hour, and limed, 57 per cent germination; E, F, 

 seeds presoaked 8 hoiu-s, then copper sulphate i to 80 for >< hour, and limed, 82 per 

 cent germination. 



2. Fife wheat: A, B, control, 79 per cent germination; C, D, seeds treated with 

 copper sulphate i to 80 for >< hour, and lim.ed, 52 per cent germination; E, F, seeds 

 presoaked 8 hoiu-s, then copper sulphate i to 80 for yi hour, and limed, 81 per cent 

 germination. 



