Relation of Size of Seed and Sprout Value to Yield 57 
As an average for both varieties during 12 years, the Hght 
seed has yielded 0.5 bushel less than the unselected seed, while 
the heavy seed has yielded 0.4 bushel more than the unselected. 
The average weights per bushel for crop harvested from the 
three grades have been 56.9, 57.5, and 57.3 pounds respectively 
for the unselected, heavy, and light seed. 
Oats — The fanning mill tests with oats seed have been con- 
ducted with two varieties — Kherson and American Banner. The 
general plan was the same as for the wheat. All grades of Kherson 
j oats have been planted at the standard rate of 10 pecks per acre, 
by means of a press drill. Since American Banner is a larger 
seeded variety, the drill was set at 12 pecks for all grades. 
The Kherson oat tests have extended from 1905 to 1916, 
giving 12 years' results. The light seed has yielded 0.09 bushel 
more and the heavy seed 0.83 bushel more than the unselected 
seed. The average weight per bushel of crop harvested has been 
27.9, 28.6, and 27.4 pounds respectively for the unselected, 
heavy, and light grades. 
The tests with American Banner oats have continued since 
1909. The unselected seed has been included only since 1913. 
The yields indicate that this variety was to begin with a mix- 
ture of types. The crop from the light seed has also been slightly 
earlier during each of the past 4 years — the average time of 
heading being 2 days earlier than for the crop from the heavy 
seed. As a result of the fanning mill separation, the lightest one- 
fourth of the seed has produced 1.43 bushels greater yield than 
the heavy seed as an average for 8 years. During the last 4 
years in which the original unselected seed was also grown, the 
light seed has yielded 3.67 bushels more than the heavy seed, 
and 1.6 bushels more than the original unselected seed. The 
average respective weights per bushel for the crop harvested 
from the unselected, heavy, and light seed have been 26.5, 24.5, 
and 25.5 pounds. 
To sum up, the superiority in yield of heavy seed over the 
unselected seed has been 0.83 bushel per acre for Turkey Red 
winter wheat and 1 bushel for Kherson oats. On the other 
hand, the heavy seed of Big Frame wheat has yielded 0.2 bushel 
less than the original unselected seed, and for American Banner 
oats the heavy seed has yielded 2.07 bushels less. 
The lightest one-fourth of the Turkey Red and of the Big 
Frame seed have yielded respectively 0.7 bushel more and 1.6 
bushels less than the unselected seed. 
The lightest one-fourth Kherson oats yielded 0.09 bushel 
more than the unselected seed, while the light American Banner 
yielded 1.6 bushels more than the unselected seed. As the result 
