BROOM-CORN EXPERIMENTS AT WOODWARD, OKLAHOMA. 



23 



twisted brush. In the latter year growth was retarded, so that a 

 number of short, spiky heads developed which were of poor quality 

 and averaged only 13.2 inches in length. The lowest average per- 

 centage of good brush in the 5-year period was made in 1916. In 

 that year the length of good brush averaged 18.8 inches, but it 

 amounted to only 80.9 per cent of the total crop. The same year 

 the average length of the poor brush was only 14.7 inches, or 4 inches 

 less than the good brush. This was due to extremely dry conditions 

 in the latter half of the heading period. 



Table VII. — Agronomic data for Dwarf broom corn groicn in the varietal experi- 

 ments at the Woodward (Okla.) Field Station during the 5-year period from 

 191'f to 1918, inclusive. 





Row 



space 



Len 



jth of pe- 



Percentage 



<D 



Yield of brush 

 per acre 

 (pounds). 



Length of 



brush 

 (inches). 



o 





(inches). 



riod (days). 



of 





ft 



b£ 





























Year and variety. 







6 









■d 













CO 









i> 



1=1 





a 





O 













■as 





1 



1 



<B 



to 



% 



"3 



o 



g3 a 



<D "5a 



S3 



"55 



-a 



O 



o 



8 



o 



03 



O 



•6 



o 



o 



i 



o 



3 





•-■ 



m 



k* 



N 



H 



m 



— 1 



H 



O 



p- 



H 



O 



f-c 



P4 



Season of 1914: 































C.I. No. 442 



6.5 



6.5 



73 



18 



91 







83.4 



3.5 



276 • 



20 



295 



18.0 



15.0 



93.2 



CI. No. 535 



7.5 



7.5 



• 73 



18 



91 







82.1 



3.8 



225 



20 



245 



18.0 



12.0 



91.8 



CI. No. 557 



6.5 



6.5 



73 



18 



91 







77.4 



4.0 



250 



100 



350 



21.0 



14.0 



71.4 





6.8 



6.8 



73 



18 



91 







80.9 



3.8 



250 j 47 



297 



19.0 



13.7 



85.5 



Season of 1915: 































C.I. No. 442 



6.3 



5.2 



81 



14 



95 



17.3 



72.7 



4.3 



511 



83 



694 



21.0 



21.0 



86.0 



C. I. No. 535 



6.9 



6.0 



74 



21 



95 



12.3 



96.3 



4.8 



683 



122 



805 



22.0 



•22.0 



84.8 



C. I. No. 557 



5.7 



5.3 



76 



19 



95 



7.0 



100.0 



5.0 



650 



205 



855 



22.0 



22.0 



76.0 





6.3 



5.5 



77 



18 



95 



12.2 



89.7 



4.7 



615 



137 



752 



21.7 



21.7 



82.2 



Season of 1916: 































C.I. No. 442 



9.2 



5.3 



72 



15 



87 



41.7 



75.9 



3.0 



283 



117 



400 



17.0 



13.5 



70.8 



CI. No. 535 



9.0 



5.9 



65 



22 



87 



33.8 



81.9 



3.8 



433 



50 



483 



19.0 



14.5 



89.7 



C. I. No. 557 



7.6 



6.8 



70 



17 



87 



10.7 



86.9 



3.8 



361 



78 



439 



20. 5 



16.0 



82.3 



Average of 3 



8.6 



6.0 



69 



18 



87 



28.7 



81.6 | 3.5 



359 



82 



441 



18.8 



14.7 



80.9 



Season of 1917: 











i 

















CI. No. 442 



7.1 



5.9 



96 



16 



112 



16.6 



94.5 



4.0 



328 



72 



400 



14.0 



12.0 



81.9 



C.I. No. 535 



7.8 



7.0 



96 



18 



11+ 



10.0 



93.0 



5.0 



378 



72 



450 



17.0 



13.5 



84.0 



CI. No. 557 



6.8 



5.9 



109 



8 



117 



12.8 



91.2 



o. o 



378 



77 



455 



15.5 



14.0 



82.9 





7.2 



6.3 



100 



14 



114 



13.1 



92.9 



4.8 



361 



74 



435 



15.5 



13.2 



82.9 



C I. No. 559 



6.8 



6.5 



116 



17 



133 



3.0 



87.4 



4.5 



444 



45 



489 



16.5 



12.0 



90.9 



CI. No. 595 



i. 5 



4.8 



107 



15 



122 



35.7 



85.3 



5.0 



365 



80 



445 



16.5 



12.5 



82.0 



C. I. No. 597 



7.6 



6.8 



107 



15 



122 



10.7 



95.5 



5.5 



411 



50 



461 



17.0 



14.0 



89.2 





7.3 



6.0 



110 



16 



126 



16.5 



89.4 



5.0 



407 



58 



465 



16.7 



12.8 



87.4 



Average of 6 



7.3 



6.2 



105 



15 



120 



14.6 



91.1 



4.9 



384 



66 



450 



16.1 



13.0 



85.1 



Season of 1918: 































C.I. No. 442 



7.6 



5.3 



66 



19 



85 



30.1 



59.3 



2.3 



188 



37 



225 



14.0 



13.5 



83.3 





6.9 



5.6 



67 



17 



84 



18.7 



57.3 



3.5 



239 



50 



2R9 



19.5 



14.0 



82.7 



C I. No. 557 



7.2 



5.6 



69 



15 



84 



21.4 



70.4 



3.5 



294 



28 



322 



16.5 



13.5 



91.4 



Average of 3 



7.2 



5.5 



67 



17 



84 



23.4 



62.3 



3.1 



240 



38 



278 



16.7 



13.7 



85.8 



CI. No. 559 



6.3 



5.7 



86 



22 



ins 



10.6 



15.2 



4.3 



75 



10 



85 



16.5 



13.0 



87.1 



CI. No. 564 



7.8 



6.5 



70 



25 



95 



16.7 



58.2 



4.0 



178 



22 



200 



16.5 



12.5 



88.9 



C.I. No. 595....... 



7. 7 



5.0 



67 



19 



86 



35.1 



56.9 



3.5 



278 



44 



322 



19.5 



15.0 



86.2 



C.I. No. 597 



8.0 



5.6 



70 



16 



86 



29.9 



58.7 



3.5 



294 



2.5 



319 



18.5 



15. 5 



92.2 



Average of 4 



7.5 



5.7 



73 



21 



94 



23.1 



47.3 



3.8 



206 



25 



231 



17.8 



14.0 



88.6 



Average of 7 



7.3 



5.6 



70 



19 



89 



23.2 



53.5 



3.5 



221 



31 



252 



17.3 



13.9 



87.4 



