24 



BULLETIN 39, U. S. DEPARTMENT OF AGRICULTURE. 



in 1910, a very dry season, so that the differences are probably 

 greater than they would have been in a season of abundant moisture. 

 Several representative varieties were used in the experiment. The 

 evidence was so conclusive that the yield could be increased by this 

 method that it was not considered necessary to repeat the trial. 



Table X. — Results obtained in 1910 at the High-more, 8. Dak., substation from 

 well-cleaned seed of four varieties of oats when grown after an intertilled 

 crop, in comparison with ordinary well-cleaned seed when grown after oats. 





Good cultural methods. 



Ordinary cultural 

 methods. 





Differences. 









a3 









'a; 









a! 









<B 



^ 







6 



fi 









,a 







Variety. 



3 



3 



.s 



■s 



| 



3 

 P 



.3 



£ 







3 



fl 



.3 

































a 



ft 



M 





s 



0J 



ft 



tc 





S 



ft 



fc£ 







3 



A 



O 



o 



-2 



,d 



o 



o 





J= 



O 



-o 







•d 



T) 





■a 



13 





t3 



M 





k» 





"a3 





>> 





"a3 





>» 







-4) 































A 



& 



|x 



!* 



■.« 





r* 



K-l 



fi 





(H 



^ 







Lbs. 



Bu. 



Cwt. 





Lbs. 



£u. 



Cw;£. 





£6s. 



Bk. 



Cict. 



Sixty-Day 



88 

 89 

 95 

 94 



32 

 36 

 39 

 35 



21.9 

 21.9 

 35.9 



18.8 



25.0 

 17.0 

 29.5 

 14.0 



86 



84 



100 



94 



25.0 

 30.0 

 27.0 

 30.0 



9.4 

 10.0 

 25.0 

 11.6 



5.7 

 6.8 

 i0.2 

 6.8 



2 



5 



-5 







7 

 6 



12 

 5 



12.5 

 11.9 

 10.9 

 7.2 



19.3 





10.2 





19.3 



Regenerated Swedish Select 



7.2 





91.5 



35.5 



24.6 



21.4 



91 



28.0 



14.0 



7.4 



.5 



7.5 



10.6 



14.0 







As shown by the data presented in Table X, the good methods 

 increased the yield of grain and straw and gave a product of better 

 quality, as is shown by the increased bushel weight in each case. 

 These data are in accord with those obtained by other experiment 

 stations and with the experience of many farmers. It is therefore 

 advisable to grow oats in alternation with a cultivated crop in the 

 central part of the State and to use thoroughly fanned seed. Just 

 how much of the gain was due to each factor was not determined; 



COMPOSITION OF VARIETIES. 



Table XI presents some data on the composition of the different 

 varieties of oats included in the test. The figures, which are for the 

 1910 crop at the Highmore substation, include the percentages of 

 hull, protein, and water, and the weight of 1,000 grains for each of 

 10 varieties. A pure-line selection of the Sixty-Day (C. I. No. 626) 

 and ordinary Sixty-Day (C. I. No. 165) were highest in percentage 

 of protein and lowest in percentage of hull. The Swedish Select also 

 shows a low percentage of hull and high protein content, while in 

 size of the grain, as shown by the weight per 1,000 kernels, it greatly 

 exceeds the Sixty-Day. As the low percentage of hull and high 

 protein content both indicate a high feeding value, it is evident that 

 these two varieties are desirable for this reason as well as for their 

 high yield. 



