New York AGRICULTURAL EXPERIMENT STATION. 321 
POTATOES. 
A TrEst oF VARIETIES. 
The following table will show the yield of the several varieties 
from an equal amount of seed, one pound being used except when 
noted ; and the yield given in pounds. The seed was cut to make 
twenty pieces, and two pieces planted in each hill, making ten hills 
of every variety. To make the conditions similar, parts of two 
plats were used, 292 feet of H. and 287 of I plats, complete fertilizer 
being used at the rate of 200 pounds per acre. It was the inten- 
tion to harvest the different varieties when ripe, but as the potato 
blight made its appearance early in July, it was thought best to 
leave the early varieties to be harvested with the late ones, in 
order to determine their rot resisting qualities, and although the 
accompanying table gives the per cent of decay of each variety it 
does not follow that the ratio would be maintained for a series of 
years, even if the conditions were identical. It is claimed that 
tubers that have been exposed to the disease should not be 
as planted, as the germs may be present without developing any 
visible characters. But this season shows that although tubers 
~ may have been exposed to the influence of the rot it does not 
follow that they are affected. In the case of Bliss’ Triumph, a 
variety grown with eighty others at the Vermont Station in 1888, 
~ it being the only variety that was badly affected, while tubers of 
that variety sent to this station from there this spring, developed 
plants that were among the very few that resisted the mildew, 
although the conditions were perfect for its fullest development. 
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