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, Moro, Oreg., 1913 to 1915, 

 inclusive. 



[Data obtained in cooperation with the Oregon Agricultural Experiment Station.] 





C. L 

 No. 



Yield per acre (bushels). 



Group and variety. 



1913 



1914 



1915 



Aver- 

 age. 



Fife: 



Marquis 



Preston: 



4158 

 2203-2 

 1697 

 1.558 

 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 

 27.8 



Baart: 



25.7 



Crimean (winter): 



Turkey 



24.0 



Little Club: 



Little Club 



21.6 



White Australian: 



PaloTise Bluestem 



21.4 



Kubanka (diu-am): 



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. Gihnore 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. 



