52 BULLETIN 836, U. S. DEPARTMENT OF AGRICULTURE. 
for all lots. The percentage of good brush that year was quite low, 
ranging from less than 1 per cent in several lots to as high as 24.4 
per cent in one lot only. Good brush as considered in this experiment 
includes those heads which have uniformly long, round fiber full 
and even at the tip and evenly attached to the peduncle at the base. 
These heads are suitable for the improvement of the strain. In 
1918 there was a slight increase in the percentage of good brush over 
that of the previous year, as shown in Table X XVI. | 
TABLE XXVI.—Rovw space per plant, the percentage of suckers, of headed stalks, 
and of good heads for each lot of broom corn grown in the nursery at the 
Woodward (Okla.) Field Station during the two years 1917 and 1918, with 
the 2-year averages. 
| Row space per Suckers (per Percentage of Percentage of 
| plant (inches). cent). stalks headed. good heads.1 
= | cae | lob ane cae scene 
Variety and lot (C. I. No.). | aver- aver- aver-| aver- 
3 | age, age, age age, 
| 1917 | 1918 | 1917 1917 | 1918 1917 1917 | 1918 1917 1917 | 1918 1917 
and and and and — 
} 1918. 1918. 1918. 1918, 
oh as ca Ps Si (rss 0 ee | 
t T 
Sa eee aie 7.6| 7.1|.7.4| 67| 51] 5.9| 85.6] 86.0| 95.8] 7.8] 87.1| 47.5 
GS Reisceocscecoonsssosst 6.81 628 | 6-8-1--6.8 | 5.3.) 6-1 18155 [83245182251 (6-4 eer Seas 
BGO See ee Dee ee 731 64) 6.9] 5.2] 9.5] 7.4] 89.0] 58.1] 73.6] 3.9| 943] 49.1 
Glee ee eee ee 7.0 | 12.2] 9.6] 7.7 | 17.7 | 12.7 | 93.4 | 55.0 | 74.2} 24.4 | 95.4] 59.9 
Fe eee Loe apy 2 ea 8.4] 8.0] 82] -69] 7.0] 7.0] 90.1 | 55.6 | 72.9} 21.8] 71.4] 46.6 
BRS See 2 oe aS st ee 7-0 |. 6:8 | 629 | 9.3 | 6.4.15 -29:) Si-ba 802 [Sse 6: Orsi] sacs 
Gs DS ae Bn Sa 7.9 | - 6.6} -23-| 3420) O=d 1-19.29) [-f520 | OU. eSIo8 ta Sat | 78.1) 49.6 
Ae eae nee eh ba Sel Ee eee 29.3 |------ |-RSeee (eB) p22 Se =e Le a) Bere (oes 
RZ sat eee eres (Ree fl Menem a| Esc ane 4A. Scan a|=saaeie $928: site |S eee 
Fe Osage eh denen a 7.31 7.8 | 7.6-| 16:9\| 151 |- 16-0] 82.3:1-8£8-) 8356) 352 (7922 aie 
33 ea ee ae See ee | §.0/ 12.9} 10.5 | 30.9} 12.9 | 21.9} 75.7} 86.6] 81.2 | 18.3 | 87.9] 53.1 
BRS bed a Rae Ee 741 6.8). 0-11 @7| 7.5) - 7.61 82.8 | 52-3.) 66s 6: 23S o eee 
5 oo a ee IS VALE es ES a eRe TES pease a2 2-8 Sie Oana nee -9 (2S 
iy ES eee Oe le: Gr | ke ectoeeeee 1S Gyrs sos one $2.6. |ce- | eee Lt 
BRS eeteakes taeree ee Es Bey hes eeces eee 629)(22- ee |eeeoes 39. 04---=—= [sseeee §./ 255-3 heeeees 
BRO ts ee ert es lent 7= Oilseeseeeaeees Ahi Nsom ss | eae see ABTS aac so [Sane ae pees! Maes 
UE pats ee a et eR 7.31 6.7) 7.0] 13.5] 49] 9-2) 8-3 842'| 83.8 5.7 | 82.2] 44.0 
De i Sas Ls, ae yt TON Bes iereanl Meese | 9.4 |--.---)------ 2, eee iy Geaeee meee 
GOS CREE ope S aa ee 7.6| 7.0] 7.3] 3.7| 5.4] 46] 8.3] 87.0| 8.7] 7.1] 77.8] 42.5 
FA a igre ne Re eee 7 hss vel Peel Para) Wa Cee! | 4.9} 3.1] 4.0] 79.3} 90.5) 84.9] 7.3) 82.1 | 44.7 
(1s see oe Sane ESS 7b Beaeeel cnesce 5 Oils cate | peeraee 78. Dosen = Say 3 [BS es ee 
GODS ais ae ee amie ee 7.6 7.4 1.5 4.6 | 8.5 6.6 | 89.0 | 88.4 | 88.7] 4.6] 841.0] 44.3 
6045 ees se eS 7.4|. 7.0} - 7.24) 9.3: | 15.1 |. 12.2.)-79.1. 164. 9)" 72-01-8205 | 92542| Se opeo 
GOT ae ee ee eo Yaa eee Pe 7 at. i Sega em ceeears (931 lessee | ase 126425 In? 2a oe 
Dwart: | ! 
DAS OE. es SOMA a 5) WES 7.6| 7.8] 7.7 | 17.1] 18.8 | 18.0 | 95.6 | 85.2 | 90.4 | 25.4 | 87.7 | 56.6 
AA) Se ee 8.0] 7.9} 8.0] 29.8] 15.9 | 22.9 | 92.5 | 87.8 | 90.2] 16.8] 80.4] 48.6 
pe Beene See Sree aes 7.0| 7.4] 7.2] 10.0| 18.9] 14.5 | 94.0] 78.4 | 85.2] 19.9] 80.7] 50.3 
SY a patie et as © 8 aor RN 6.3 6.6 6.5 3.1) 6.3} 4.7 | 95.3 | 89.3 | 92.3 | 11.8 | 92.5 y222 
AC ch eee ee ae Oe ee no 7.3 | 14.5] 10.4] 4.0| 12.1] 8.1) 93.3] 56.4] 74.9; 7.5] 40.0] 23.8 
DO een ene Bene ee 6.9 6.5 G50 PSO So ee23 1.5 | 90.3 | 65.6 | 78.0) 2.8] 81.9 42.4 
aps Ss ee eae 80] 7.0] 7.5] 15.3] 4.6] 10.0] 95.7 | 89.0] 924] 15.5] 77.2] 46.4 
HOD Ree sae eee eee 6.8| 7.0} 6.9} 46.3 | 30.1] 38.2] 87.1 | 76.4] 81.8] 16.9] 96.7] 56.8 
LS eS a ee ae a 6.6.6 7.0 | G2 | 8.2.) 14.9 | 4058 | 95:2 | 8144-88537) 24 egos kale eae 
Dip ee hee Sits 7.0 (68: (hee) Wea! 9.2 | 10.2 | 97.2 | 88.9 | 93.1] 18.3 | 86.8] 52.6 
Te ade EE eee ee 7.0|- 7.2) 23} 85:[ 13.8 | 11.2 4294.3 | 81.9 S815) Ga8 trosa2 oe 
One Se ree > See aS TS 6.6 TpS 22 6.9 5.5 | 12.4 9.0 | 92.8 | 74.5 | 83.7 | 12.7] 93.0 52.9 
ae 4 soe ee eee 6.6 | 14.3] 10.5 | 2.0] 24.5 | 13.3 | 93.0 | 74.8] 83.9] 4.8) 681] 36.5 
GOR Seer mamte arias USS 6.4 5.0 905821. 22 c= se ooee 3-3 
Getta Becse- ese score cos ig: St Se 
1 Good heads as considered in the nursery work were heads whose conformation was near enough per- 
fect to be used as seed for propagation or for the improvement of the strain. 
Dwarf broom corn had a much higher average percentage of stalks 
headed and a somewhat higher average of good brush in 1917 than 
the Standard. In 1918 Dwarf broom corn led the Standard in both 
the average percentage of stalks headed and of good brush, but with 
Sbrenhis Aee Te i i i 
4 
| 
} 
