18 



BULLETIN 836, U. S. DEPARTMENT OF AGRICULTURE. 



conducive to the development of coarse, kinky, or burly fiber and 

 crooked beads. Table VIII shows the annual yields of all lots of 

 broom corn included in this experiment, together with their average 

 yields in periods of varying length. 



Table V. — Agronomic data for Sta-ndard broom com grown in varietal experi- 

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

 1914 to 1918, inclusive. 





Row 



space 



Length of pe- 



Percenta-p 



■2 



Yield of brush 

 per acre 

 (pounds). 



Length of 



brush 

 (inches). 



TH 

 O 

 O 





(inches). 



riod (days). 



ci 







o^- 



Year and variety. 















■d 













CO 3 









> 



si 



.a 

 i 







<s • 



O 

















a 



05 



5 



M 



4^ 



C3 



4^ 





3 



OS'S 



3 



•6 







•d 



,; 



a 



CO 







tuO 



cd 

 > 



o 

 Eh 



o 

 3 

 02 



CD OT 



M 



3 

 B 



o 



O 



o 



o 

 Eh 



o 



O 



o 



CD 



Season of 1914- 































C.I. No. 556 



6.7 



6.7 



77 



17 



94 







79.6 



6.5 



225 



75 



300 



22.0 



14.0 



75.0 



Season of 1915: 































C.I. No. 556 



5.8 



5.8 



80 



21 



101 







94.4 



8.3 



440 



235 



675 



22.0 



22.0 



65.2 



Season of 1916: 































C.I. No. 556 



8.0 



7.5 



73 



18 



91 



6.6 



86.1 



7.0 



366 



39 



405 



22.0 



15.0 



90.4 



Season of 1917: 































C.I. No. 556 



7.0 



6.5 



112 



20 



132 



6.0 



80.8 



7.0 



350 



31 



381 



18.5 



16.5 



91.8 



C.I. No. 580 



6.6 



5.8 



95 



11 



106 



12.2 



84.1 



6.5 



160 



45 



205 



12.5 



10.0 



78.0 



C.I. No. 588 



6.5 



6.3 



100 



13 



113 



3.0 



79.0 



7.0 



200 



33 



233 



14.5 



12.0 



85.7 





6.7 



6.2 



102 



15 



117 



7.1 



81.3 



6.8 



237 



36 



273 



15.2 



12.8 



83 2 







Season of 1918: 































C.I. No. 556 



8.6 



6.9 



78 



17 



95 



20.3 



73.3 



6.0 



275 



30 



305 



18.5 



13.5 



90.1 



C.I. No. 580 



6.7 



6.0 



63 



12 



75 



9.6 



83.7 



5.5 



356 



22 



378 



17.5 



12.5 



94.1 





7.6 



6.4 



70 



15 



85 



14.9 



78.5 



5.7 



315 



26 



341 



18.0 



13.0 



92.1 







ACME BROOM CORN. 



The Acme broom corn was developed from a selection made in a 

 field of Standard broom corn by Mr. A. H. Leidigh, at Channing, 

 Tex., in 1906. It resembles the Standard variety in the length and 

 texture of the brush and the Dwarf in the height of the stalk. The 

 peduncle, or main stem, is less firmly attached to the upper node, or 

 joint, than it is in the Standard broom corn. This makes it possible 

 to harvest it in the same way as the Dwarf variety. The Acme re- 

 quires less water than the Standard, and it produces a brush of good 

 length and quality under the average seasonal conditions obtaining 

 in the southern Great Plains. These characters make it adapted to 

 conditions in that section of the United States. It is now being 

 grown there commercially to a limited extent. Plants of this variety 

 are shown in figure 4. 



The results with the Acme broom corn obtained in the varietal ex- 

 periment conducted at the Woodward Field Station during the 5- 

 year period from 1911 to 1918, inclusive, are shown in Tables VI and 

 VIII. It will be noted in Table VI that in the 5-year period the 

 row space per plant ranged from a minimum of 5.5 inches in 1915 



