9

E.—7a.

The germinating power of the same wheats was hardly affected by solutions of sulphate of iron containing 7 per cent, sulphate of copper of the same strength as above.

EXPERIMENTS IN "PICKLING" SEED WHEAT. Of 100 grains of wheat sown 21st August, 1880, there had germinated on the dates given the numbers following, viz.:—

2—E. 7a.

AuGrsi September 39th. 31st. 1st. 2nd. 3rd. 6th. 7th. 9th. lith. 14th. 17th. 20th. 27th. ... Not pickled 29 84 85 87 96 97 98 98 98 98 98 99 99 Seeds germinated. A. 'Purple Straw" .., r Pickled with pure sulphate of copper 2 oz. to the sack 4 „ Q 13 4 o 40 19 4 61 35 7 83 53 8 85 57 8 88 64 13 93 81 27 93 83 40 98 85 48 93 88 50 93 90 5G 94 92 59 95 93 59 5) ;j 12 „ 2 4 8 10 10 14 19 26 31 39 45 51 53 • » 16 „ 3 5 8 8 11 19 31 36 40 46 4-9 49 H B. (■ 1 Hunter's White " ] Wheat ( Pickled with pure sulphate of ( copper (. 8 oz. to the sack 12 46 49 G4 60 70 65 77 74 79 76 83 79 89 87 89 88 89 88 89 88 90 89 91 92 93 93 Seeds germinated. » r c. ;iPurple Straw" ... I Not pickled 8G 86 87 88 90 92 85 05 05 95 95 96 96 Seeds germinated. r 2 oz. to the sack 48 62 69 SO 82 84 88 89 89 89 89 89 89 is Pickled with, pure sulphate of copper 4 >, „ Q 17 14 34 26 41 31 48 37 53 40 60 47 74 59 75 GO 78 6G 80 72 81 73 82 73 82 75 13 » I 12 „ 13 17 20 2G 28 32 41 44 47 48 50 52 C5 » 16 „ „ 2 7 10 15 18 19 26 29 34 40 45 49 51 19