EXPERIMENTS WITH MARQUIS WHEAT. 
33 
variety of all is the Koola, of the Preston group, a spring wheat not 
yet grown commercially. The Koola outyielded the Marquis by 23 
per cent in the 3-year test. 
Table XXIV. — Annual and average yields of the Marquis and eight other varieties of 
wheat grown at the Eastern Oregon Dry-Farming substation, Mow, Oreg., 1913 to 1915, 
inclusive. 
[Data obtained in cooperation with the Oregon Agricultural Experiment Station.] 
C.I. 
No. 
Yield per acre (bushels). 
Group and variety. 
1913 
1914 
1915 
Aver- 
age. 
Fife: 
4158 
2203-2 
1697 
1558 
4068 
4067 
1440 
22.1 
25.8 
25.0 
24.0 
19.6 
19.4 
13.6 
22.5 
24.5 
25.5 
27.5 
19.2 
20.9 
15.0 
23.1 
33.2 
26.6 
20.6 
26.0 
24.0 
18.0 
22.6 
Preston: 
27.8 
Baart: 
Earl v Baar t 
25.7 
Crimean (winter): 
Turkey 
24.0 
Little Club: 
Little Club 
21.6 
White Australian: 
21.4 
Kubanka (durum): 
Kubanka 
15.5 
RESULTS AT DAVIS, CAL. 
The experiments at Davis are conducted independently by the 
Agricultural Experiment Station of California, and the data are 
made available here through the courtesy of the director of the sta- 
tion and his associates. Marquis wheat has been grown there only 
in the year 1915. The yields of this and numerous other varieties, 
as well as the bushel weight of the seed, are shown in Table XXV. 
The yield of the highest yielding variety in each group is shown 
graphically in figure 7. 
It will be appreciated readily that the yields of a single year afford 
no basis for conclusions. Three durum varieties and two spring 
common wheats, the Early Baart and Fretes, outyielded the Marquis. 
The season was abnormal, as may be seen by the low bushel weights, 
and rust was very prevalent. 
In transmitting the data, Prof. John W. Gilmore writes as follows: 
The yields obtained in the variety trials with wheat in plats this season were very 
low, due largely to unfavorable weather conditions. The late spring rains caused the 
grain to lodge badly and also greatly increased the rust, so that the percentages 
of lodging and of rust infection this season were abnormally high. Then, too, the hot 
north winds which occurred during the ripening period caused the grain to shrivel 
badly instead of ripening as it should. The degree to which the grain was infected may 
be observed from the low weight per bushel of all varieties this season. * * * 
In comparing the results this season with past performances, it is further worthy of 
note that the yield of the 'White Australian checks was abnormally low in comparison 
with the other varieties. * * * The winter wheats this season gave much better 
results than usual, in comparison with the other varieties. 
