14 



BULLETIN 450, U. S, DEPARTMENT OF AGEICULTUEE. 



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In 1914 the work was continued. Besides the nursery work, 24 

 selections were again grown in field plats. Eighteen of these were 

 the same as those grown in plats in 1913. The wheats were greatly- 

 damaged by hail which fell shortly before the crop was ripe. The 

 plats were harvested, however, and yield data obtained. Milling 



and baking tests were also made 

 on a number 01 the selections. 



The annual agronomic data for 

 the pure lines grown in plats in 

 1913 and 1914 are given in Table 

 IV, together with data from the 

 check plats of the original Ghirka, 

 C. I. No. 1517. In figure 6 are 

 shown the results obtained in 1913 

 and 1914 and the average for the 

 two years. The pure lines are ar- 

 ranged in the actual order of the 

 sowings, and the actual and com- 

 puted yields are shown separately. 

 The actual yield of the check plats 

 and the average for all checks 

 are shown by different lines. 



Improvement in the quality of 

 Ghirka wheat is more important 

 than increase in yield. It was 

 hoped that a pure line would be 

 found which had the combined 

 characters necessary for good 

 quality and high yield. A study 

 of the milling and baking data 

 obtained during the two years 

 1913 and 1914 on the highest 

 yielding selections indicates that 

 the desired result was obtained. 

 These data are shown in Table V. 

 Figure 6 shows that in 1913 the 

 Ghirka selections Nos. 4, 5, 17,31, 

 66, and 72 were outstanding in re- 

 gard to yield and that many others 

 were better than the parent mass 

 variety. The data for 1914 show 

 that Nos. 4, 5, 50, 66, and 72 produced outstanding yields. An aver- 

 age of the yields of the pure lines grown both years shows Nos. 4, 5, 

 66, and 72 to be the best four selections when both actual and com- 

 puted yields are considered, each showing an increase of more than 



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Fig. 7. — Diagram showing the average results 

 of milling and baking tests of Ghirka Spring 

 wheat (C. I. No. 1517) and four pure lines 

 selected therefrom, grown at the Dickinson 

 substation in 1913 and 1914. 



