Yellow-berry in Wheat 
23 
be declared as a principle that through more careful soil-culture, heavier 
manuring, etc., not only more wheat can he grown upon the respective 
wheat-soils but (wheat) richer in gluten and for this reason better and 
more valuable. The statement that the quality, that is, protein-gluten 
content, of the wheat diminished with increased harvests has ceased to be 
valid as a rule. Cases may occur, as follows from the above (reference 
is here made to the results of experiments.—H.) that we can, by means 
of manures, especially slowly acting nitrogenous manures, and cultiva¬ 
tion, within certain limits, not only increase the yield of wheat, but also 
increase its value which is closely related to its protein—respectively, 
gluten content. 
“A proof of this is furnished by mills with an extended experience 
which place a higher value upon the wheat from the larger estates, pro¬ 
vided the seed has not come from foreign lands, than upon the peasant’s 
wheat; further, (by the fact) that in certain sections of the country, par¬ 
ticularly in Banat, the quality of the wheat has actually deteriorated in 
consequence of the exhaustion of the soil, of ill-advised rotation of crops, 
of poor cultivation, etc., whereas the quality in other sections * * * 
according to the mills has increased in consequence of more careful cul¬ 
tivation and manuring.” 
Our own observations of the occurrence and cause of the 
yellow-berry are, so far as they are parallel, in harmony with those 
of Dr. Kosutany. Our observations now extend over two years 
and involve seventy-two' experiments with field observations in 
other sections of the state, together with twenty-four samples 
from another state. 
I do not think that there can be any question of the identity of 
the affection of our wheat with that of Kansas, Nebraska or North 
Dakota, and almost no question but that the starchy, opaque wheats 
of California, and the Pacific coast states, in general, are identical 
in their character with extreme cases of yellow-berry in Colorado 
and have the same cause. 
In 1913 we had twelve plots of one-tenth acre each, i. e., four 
plots of each of three varieties. These plots were not planted for 
the purpose of studying yellow-berry, but yellow-berry developed 
very plentifully in some plots and not in others. In 1914 the experi¬ 
ments were repeated, no change whatever being made in the ex¬ 
periments, the same variety being planted on each set of plots and 
the individual plots received the same treatment. Owing to force 
of circumstances which no one could change, the ground was plowed 
m the Spring of 1913 instead of in the Fall of 1912. The land 
was turned to a depth of 12 inches and sub-soiled to a depth of 16 
inches. These statements will suffice to indicate our purpose to give 
the ground a thorough cultivating. It is scarcely necessary to give 
further details of the cultivation in this connection. 
