EXPERIMENTS WITH DURUM WHEAT. 



47 



RESULTS AT MOCCASIN, MONT. 



The Judith Basin, or Fergus County, substation, is located on a 

 dark clay loam with a gravelly subsoil. The station has an altitude 

 of 4,228 feet, and the average annual precipitation in the last 18 

 years has been 16.7 inches. Experiments there are conducted cooper- 

 atively by the Montana Agricultural Experiment Station and the 

 Office of Cereal Investigations. 



Data are presented in Table XXIV on experiments with durum 

 wheat and the leading varieties of common wheat since 1908. The 

 principal data are shown in graphic form in figure 12. Eleven va- 

 rieties of durum wheat, belonging to four different groups, have been 

 under experiment, though only two varieties have been grown con- 

 tinuously since 1908. The experimental crop of 1912 was destroyed 

 by hail, so that the results of only eight years are available. 



Table XXIV. — Annual and average yields of eleven varieties of durum wheat and four 

 varieties of common wheat grown at the Judith Basin substation, Moccasin, Mont., 

 during periods of varying length in the nine years from 1908 to 1916, inclusive. 11 



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





C.I. 



No. 



Yield per acre (bushels) . 





1908 



1909 



1910 



1911 



1913 



1914 



1915 



1916 



Average. 



Class, group, and variety. 



4 



years , 



1908 



to 

 1911. 



7 

 years, 

 1909- 

 1911 

 and 

 1912- 

 1916. 



8 

 years, 

 1908- 

 1911 

 and 

 1912- 

 1916. 



Durum: 



Pelissier — Pelissier . . . 

 Kubanka — 



Kubanka 



1584 



1440 

 1350 



1444 

 1520 

 1494 

 1493 

 1447 

 1570 

 3024 



1445 



1583 



3641 

 .3322 

 2958 

 3021 



10.0 



5.0 

 5.0 



15.0 

 9.5 



10.0 



10.0 

 5.0 

 3.3 



10.0 



7.5 



41.0 



37.8 

 36.7 



39.3 

 40.3 

 33.0 

 36.7 

 35.8 

 36.3 

 39.0 



32.3 

 32.8 



10.5 



8.8 

 12.7 



8.2 

 6.5 

 7.6 

 10.0 

 10.0 

 16.3 

 8.5 



6.1 



48.0 



28.3 



33. 

 36.0 



27.7 

 29.0 

 31.7 

 25.0 

 30.3 

 24.3 

 26.0 



26.0 

 41.3 



32.0 



30.7 

 32.0 



32.8 

 30.0 



26.5 



23.0 

 25.3 



25.0 

 25.2 



42.2 



40.7 

 40.1 



39.2 

 40.1 



2S.7 

 28.7 



22.5 



21.2 

 22.6 



22.5 

 21.3 



20.6 

 20.4 

 20.3 

 20.0 

 20.9 



18.0 



29.9 

 29.0 



27.4 

 26.0 



Yellow Ghar- 













Do 























Taganrog 



Kahla — Purple 



Velvet Don — Vc/.^j 

 Don 







'"1 































Common: 



Crimean (winter) — 



31.1 



33.5 

 26.7 

 29.2 



30.3 



23.7 

 23.0 



22.4 



61.3 



42.3 

 40.7 

 41.6 







32.9 

 25.0 

 627.1 



35.0 





Fife- 

 Marquis 



Rysting 



Preston — Presto J .... 



Bluestem — Haynes. . . 





2.5 

 5.0 



29.0 

 31.0 

 30.0 



13.0 

 13.5 

 11.7 



27.0 

 25.0 

 21.0 



17.0 



26.3 

 27.1 



23.4 













a The crop of 1912 was destroyed by hail. 



b Yield of Preston, C. I. No. 3081, substituted. 



The yields of all durum varieties are in rather close agreement. 

 Pelissier has exceeded or equaled in yield all other varieties in all 

 periods. Kubanka has ranked very close to Pelissier throughout. 

 In the first four years, Kubanka was slightly excelled by Pererodka, 

 Yellow Gharnovka, and Beloturka, in the order named. 



