BROOM-CORK EXPERIMENTS AT WOODWARD, OKLAHOMA. 



33 



5-year period was 82.5 per cent, which was produced from the normal 

 rate. In the Dwarf variety, the average production of good brush 

 increased from 79.7 per cent at the thick rate to 84.7 per cent at the 

 thin rate. The average from the normal rate was 80.8 per cent. 



Table XI. — Agronomic data for Standard broom corn, C. I. No. 556, and Dwarf 

 broom corn, C. I. No. 557, in rate-of-seeding experiments at the Woodivard 

 (Okla.) Field Station during the 5-year period from 191Jf to 1918, inclusive. 





Row space 

 (inches). 



Length of pe- 

 riod (days). 



Pecentage 

 of— 



1 



O 

 60 



.'3 

 W 



Yield of brush 

 per acre 

 (pounds). 



Length of 



brush 

 (inches). 



o 

 o 

 Ml 



d 



a> 



h 



a 



Year, variety, and rate. 



1 



M 

 03 



> 



"3 



<s 

 to 



> 



B 



"3 



O 



M 



o 

 3 

 to 



<s . 

 ■OJS 

 03 "3 

 ©1a 



R 



•6 



o 

 o 

 O 



o 

 o 



"3 

 o 

 Eh 



o 



o 

 O 



o 

 o 



Ph 



1914, Standard: 

 Thick. . 



4.7 

 6.7 

 10.7 



5.1 

 6.5 



8.1 



4.2 

 5.8 

 9.4 



4.1 

 5.7 

 8.1 



4.7 

 8.0 

 9.3 



4.7 

 7.6 

 10.0 



5.1 

 7.0 

 9.8 



4.8 

 6.8 

 9.5 



4.0 

 8.6 

 11.1 



4.5 

 7.2 

 10.8 



4.7 

 6.7 

 10.7 



5.1 

 6.5 

 8.1 



4.2 

 5.8 

 8.6 



3.9 

 5.3 

 6.0 



4.6 

 7.5 

 8.5 



4.5 

 6.8 

 6.6 



4.9 

 6.5 

 8.4 



4.8 

 5.9 

 8.0 



4.0 

 6.9 



7.7 



4.3 

 5.6 

 5.7 



77 

 77 

 77 



73 

 73 

 73 



80 

 80 

 80 



76 

 76 

 76 



73 

 73 



72 



70 

 70 

 70 



112 

 112 

 108 



109 

 109 

 109 



78 

 78 

 78 



69 

 69 

 69 



17 

 17 

 17 



18 

 18 

 18 



21 

 21 

 21 



19 

 19 

 19 



18 

 18 

 19 



17 

 17 

 17 



20 

 20 



24 



8 

 8 

 8 



17 



17 

 17 



15 

 15 



15 



94 

 94 

 94 



91 

 91 

 91 



101 

 101 

 101 



95 

 95 

 95 



91 

 91 

 91 



87 

 87 

 87 



132 

 132 

 132. 



117 

 117 

 117 



95 

 95 

 95 



84 

 84 

 84 





 

 





 

 





 

 9.3 



3.4 



7.0 



26.3 



1.1 

 6.6 



8.4 



2.8 

 10.7 

 34.5 



3.3 



6.1 

 14.6 







12.8 

 15.3 







20.3 

 30.4 



5.8 

 21.4 

 47.2 



65.8 

 79.6 

 81.1 



68.7 

 77.4 

 76.1 



84.8 

 94.4 

 78.0 



95.4 

 100.0 

 87.2 



82.5 

 86.1 

 90.3 



85.4 

 86.9 

 79.9 



84.3 

 80.8 

 75.3 



93.5 

 91.3 

 93.2 



51.0 

 73.3 

 71.3 



53.2 

 70.4 

 57.8 



7.0 

 6.5 

 7.0 



4.0 

 4.0 

 4.0 



8.3 

 8.3 

 8.3 



5.8 

 5.0 

 5.0 



6.8 

 7.0 

 6.8 



4.0 

 3.8 

 4.0 



7.0 

 7.0 



7.0 



5.8 

 5.5. 

 5.5 



5.8 

 6.0 

 6.0 



3.5 

 3.5 



3.5 



150 



225 

 212 



130 



250 

 300 



538 

 440 

 295 



667 



650 

 594 



372 



367 

 385 



440 



361 

 420 



380 

 350 

 260 



390 



378 

 305 



125 



275 

 260 



215 

 294 

 280 



90 

 75 

 69 



60 

 100 

 50 



118 

 235 

 220 



133 

 205 

 150 



78 

 38 

 40 



80 

 78 

 50 



45 

 31 

 50 



100 

 77 

 100 



55 

 30 

 30 



45 

 28 

 20 



240 

 300 

 281 



190 

 350 

 350 



656 



675 

 515 



800 

 855 

 744 



450 

 405 

 425 



520 

 439 

 470 



425 

 381 

 310 



490 

 455 

 405 



180 

 305 

 290 



260 

 322 

 300 



18.0 

 22.0 

 24.0 



21.0 

 21.0 

 24.0 



20.0 

 22.0 

 25.0 



20.0 

 22.0 

 22.0 



18.0 

 22.0 

 20.0 



18.0 

 20.5 

 19.0 



18.0 

 18.5 

 20.0 



16.5 

 15.5 

 16.0 



15.5 

 18.5 



IS. 5 



17.0 

 16.5 



17.5 



13.0 

 14.0 

 18.0 



15.0 

 14.0 



15.0 



20.0 

 22.0 

 25.0 



20.0 

 22.0 

 22.0 



14.0 

 15.0 

 15.0 



14.0 

 16.0 



14.5 



16.5 

 16.5 



17.5 



14.0 

 14.0 

 14.0 



12.5 

 13.5 



13.5 



14.0 

 13.5 

 13.5 



64.2 



Normal 



Thin 



75.0 

 75.6 



1914, Dwarf: 



Thick 



68.4 



Normal 



Thin 



71.4 

 85.7 



1915, Standard: 



Thick 



Normal 



Thin 



81.9 

 65.2 

 42.7 



1915, Dwarf: 

 Thick. 



83.3 



Normal 



Thin 



76.0 

 79.9 



1916, Standard: 



Thick 



82.7 

 90.4 



Thin 



90.6 



1916, Dwarf: 



Thick 



Normal 



Thin 



84.6 

 82.3 

 89.4 



1917, Standard: 



Thick 



Normal 



Thin 



89.4 

 91.8 

 83.9 



1917, Dwarf: 



Thick 



79.6 





82.9 



Thin 



75.3 



1918, Standard: 

 Thick. 



69.4 





90.1 



Thin 



89.7 



1918, Dwarf: 

 Thick. . 



82.7 





91.4 



Thin 



93.3 







COMPARATIVE YIELDS IN THE RATE-OF-SEEDING EXPERIMENTS. 



The yield and the quality of the brush are influenced by seasonal 

 conditions. No one rate of seeding, therefore, will prove best in all 

 years. But as the season can not be foretold the rate that gives the 

 highest average yield in a series of years would appear to be the 

 most profitable. Table XII shows the annual and the average acre 

 yields of both good and poor brush by both the Standard and Dwarf 



