PLATE 22 
A. —-Relation between the location of the break in the seed coats of hand-thrashed 
Early Baart and injury from treatment with a i-pound to 4-gallon copper-sulphate 
solution: 1, seed coats unbroken, germination 100 per cent; 2, seed coats broken over 
embryo, germination 10 per cent; 3, seed coats broken over endosperm, germination 
95 per cent; 4, only outer layer of seed coat broken over embryo, germination 90 per 
cent. 
B. —Relation between the location of the break in the seed coat of hand-thrashed 
Early Baart and injury from treatment with a i-pound to 4-gallon copper-sulphate 
solution followed by lime: 1, seed coats unbroken, germination 100 per cent; 2, seed 
coats broken over radicle, germination 85 per cent; 3, seed coats broken over plumule 
of embryo, germination 50 per cent ; 4, seed coats broken over endosperm, germination 
95 per cent. 
Comparison of B with A shows efficiency of lime. 
