BROOM-CORN EXPERIMENTS AT WOODWARD, OKLAHOMA. 51 
TABLE XXV.—Height and duration of vegetative period with 4-year averages 
for each lot of broom corn grown in the nursery at Woodward (Okla.) Field 
Station during the 4-year period from 1915 to 1918, inclusive. 
Height (feet). 4-year Growing period (days).! 4-year 
Narlehygand sl Obj: ieuseee nus uee eee See Average: average, 
(C.I. No.). 1915 to 1915 to 
1915 1916 1917 1918 1918. 1915 1916 1917 1918 1918. 
Standard: 
BAG Se ea ceas 9.0 7.0 7.0 6.0 Uae 83 te 100 77 83 
a Gaon oe en aero 7.5 6.5 G833|Beascctine|eenease 71 101 80) aeeeoenee 
SG iees Pee 10.0 6.8 o& 5s0 7.5 93 81 112 88 93 
Gd ete sre ien te ee 11.0 7.0 8.0 Wee 8.3 96 86 114 98 98 
EG dee tesa ee 11.0 6.5 8.0 6.5 8.0 93 87 116 106 100 
5Gpe eee oe 10.0 7.0 6.5 5.8 1.3 82 76 105 85 87 
ERO eet ese 9.0 6.5 6.0 5.5 6.8 79 68 89 70 77 
RO ob oanscallocacessa|iscocuccc GOR eatyaeetes | OSes me tere merce es pot! Fil [meen umes | a ore 
DRO eee a eee 9.0 7.0 C5 (0) fe ae el BE SS es 79 70 LOS eeicose cl eseseeeee 
ROD eset eee liaise 7.0 6.0 5.5 GaOHl Shacceete 68 105 75 82 
foe ee hee a 9.0 8.0 6.5 6:3 AD 77 73 94 77 80 
RARE ace 10.0. Cod 7.0 6.0 7.9 81 81 112 94 92 
i Aaa eae 10.0 7.3 ACU eens) pee ree 79 76 LOAS |: So eae rece 
hi eee SAO recceice 2 wi tcrssisaa Bee camel seme e mons SRE Bees Sieg ac A ae ee | ene oom 
ES oy frase a8 Seen OR 9.0 8.0 S05 asec tal aciereeae 77 83 ADDR) S ee es | ee eee 
BR Rimes ety te 8.0 125 G8 Os ee See See 77 TOS se 04s | aoe en eee a 
BRO sae nee ne 9.0 8.0 SaOH eae eee ns aoe eee 80 76 als eas eee tel ee ee ee 2 
E90 eee Hee ane (EDA SSS Saco IB COHorS GeSHeel Geeneeeea (itis BAO SSS SA SaaS eocorse Serossoee 
DOL Serer se tite 8.0 Tod 7.0 6.0 Coil 76 70 105 80 83 
BO De oten ces 8.0 8.0 TAOS) | SSeeees ele ae 77 69 TLO4S| Ot ceis | Soe ree nes 
OSE een te 8.0 1.5 6.5 6.0 7.0 77 76 97 85 84 
HOA Soe cans 8.0 8.0 7.0 6.3 Woe) 77 7 100 78 82 
6S 8.0 8.0 (igs) aera eset 81 72 LOA Passes lea ceeeee 
GO2R Stee 8.0 8.0 6.0 7.0 (os) 77 70 94 We 79 
GOR ee ie OG ee etectal seine Solon Die a aisinies| broces sole CGH Bere aaa Meloan cio rece cian ol eererareee 
G0ARSs See 11.0 Ue) 50 6.5 8.0 76 83 112 89 95 
U7 (Seopa aeboe aceance 7.0 (ont) RAE ey eel aal ek ee 71 LOO? Sata saecaetacees 
Dwart: 
DUG acco" 9 eon || eee 4.8 5.0 S5r aaewemecl ee ase 71 93 eRe seeaace 
(Oe A A cree eI 3.3 B55) 7 Bio IS ROCOGSe eee 76 94 133 |2an ose 
GE BGs a dbob ace lobeaonne 5.0 5.0 nl Ses aaeee 4llarmecetes 70 91 diel emt eee a ails 
GY (sae aSGeEeSas DOCOSSae 5.3 5.0 Seow ane sem tee | bierevaie aire 70 96 aes | ere 
OBIS aaa caine 5.0 4.8 5.5 4.3 4.9 96 93 111 109 102 
35) ) St OSE 5.0 5.0 25 4.0 4.9 96 87 115 108 102 
SOQ Se ast eee GRO | Cees eergae | Set se cl Bees aoa ae (hey BARRE etal nS eehe Sanaa ees 
DOA epee ereree 6.0 5.3 4.8 3.8 ‘a0 83 70 102 72 82 
fife) I ae Epes Son | eeeeten tee [a aise eel eine rel seuen eee SOUR eae ale Soe ee | Be saccade een 
HOG RSS aaa 6.0 5.0 4.5 3.3 4.7 81 69 95 72 79 
a! VS ase aa ae 5.5 5.0 4.5 3.5 4.6 80 63 93 75 79 
OTs ne Bee ee 6.0 5nd 4.5 3.5 4.9 84 70 105 72 83 
HOS Bats ae 6.0 5.5 5.0 33.6) 5.0 81 74 105 74 84 
AO eed ee 6.0 a4) 5.0 350 5.0 81 76 112 75 86 
G0ie2 este eS NR el | aR a bets a at |e cba bs Ie ee UE NSEEE CR Sal Sass See eae Se a ae 
G) Sstesoosccess BaEeeE ee 5.0 5) AA Qn ewes een le sceecne 91 114 1iGal sesso 
G0 GE Aeeee ere a Saeesuse 4.5 SEF eyest S| sear oe lee eg eee 93 LAGOS SSS Seeamcaee 
1 The vegetative period extends from the date of seeding to the date when heads apparently cease to 
appear. 
The tendency to sucker is present in both the Standard and Dwarf 
varieties, but to a much greater degree in some lots than in others. 
The percentage of suckers in most of the lots did not vary greatly in 
the two years recorded. However, a few lots in each variety show a 
wide variation. Standard broom corn (C. I. No. 580) developed 34.3 
per cent of suckers in 1917 and only 5.5 per cent in 1918. The high- 
est percentage of suckers developed in Dwarf broom corn was 46.3 
per cent by C. I. No. 595 in 1917. This same lot produced only 30.1 
per cent in 1918. : 
PERCENTAGE OF HEADS AND QUALITY OF BRUSH. 
In 1917 the Standard broom corn grown in the nursery ranged in 
the proportion of stalks headed from 73.5 per cent for C. I. No. 580 to 
93.4 per cent for C. I. No. 561, with an average of about 74 per cent 
