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GRAIN-SORGHUM EXPERIMENTS IN THE PANHANDLE OF TEXAS. 5// 
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The stands obtained vary somewhat with the aealinats at sowing 
time. Either a cold, wet spring or an extra dry soil may reduce 
germination and consequent stand. The distance between plants 
in the Blackhull kafir varied from about 8 inches in 1911 and 19138 
to 9, 10, and 12 inches in all the other years except 1910, when dry 
soil reduced germination and so doubled the average plant space. 
The average stalk space is governed by conditions occurring 
during the vegetative period and determining the formation of 
suckers. In general, about one-third of the total stalks are suckers, 
making a proportion of 2 main stalks to 1 sucker. In 1909 the 
spring drought reduced the percentage to about 14, while in 1910 the 
May rains combined with thin stand induced vegetative growth 
until half the stalks were suckers. Both these were years of drought 
which reduced the yields almost to the vanishing point. It will be 
noted that in the dry year, 1912, when the spring rains were suf- 
ficient to produce 44 per cent of suckers, only 25 per cent of all 
stalks were able to produce heads. 
TaBLE XX.—Annual and average yields of standard Blackhull kafir, Sunrise kafir, 
Dawn (dwarf) kafir, and White kafir grown at the AmarilloCereal Field Station during 
periods of varying length in the nine years from 1908 to 1916, inclusive. 
[In the statement of yields per acre the bushel is rated at 60 pounds.] 
Annual yields (bushels). ; Average yields. 
Variety and | Seal 4 6 8 
C. I. No. years, |years,/years,) 9 Veors 
1908 | 1909 | 1910 | 1911 | 1912 | 1913 | 1914 | 1915 | 1916 | 1910 | 1908 | 1909 1908 to 1916 
to to to ° 
1913. | 1913. | 1916. 
Standard: Bus. | Bus. | Bus. | Bus. | Cwt 
(fils Seats. Ae ele oe On teal Onl e20n08 | Avi 0 | 14.0 | 64.0 Oy eh) TO) ae Bl Nee 10. 4 
aD SB Bye eee | nee foe a 1.4] 16.9] 4.6 Omi Reese eee |, eae YY (al ee elaetel ee ere Bilis Ait 
QUE Soh Nek ole 4a eOn9F 5:67) 19: OP; 952 0 | 10.7 | 38.3 (OPI p eee ed IPRA calls |) TSE!) 8.3 
74) eters are 28.6) 5.6] 4:0] 20.2) 4.4 ORE | Bee Ue 2 LO DI Sa ee oe seers 
DOG Reese FeO Rel ete grees | eoers eel eaten fen all evs w(t teal Rien cape coe concave al ernie (Reese nee 
DANY ince ea SONG Onsal e424 Ia ALS 0 | 10.0 | 35.7 OF Sab 9590 SOs ON ah 7.0 
ZAK ie pee aces Baul 4S od. 6 1826 | Seal << Oy eae Wists eats | Fanta Tey Ggcot tad LOO} | AeA Seles ea hoe 
AeA eee aes 8 Se Sis P45 7 Ou Sear. ese | Na Tae AIAN (ee dO ea eo ois tevereers 
BRE ee eee fe 15) 19.4'| 3.8 Oe [iasesias | Stare Arana al: eh cN ee oes eeetee 
ga BeSeeoe ows fee fa|Pe As Dale 2200 95 0) |, 256 el ee eta nes Sela sea BAT Oss ces see ee 
3) SERS Seer 37.08 10s7-| 458 | (2056) 426 0 | 11.3 | 62.7 OF 5201350" | 143") 1659) | Ost 
Nets Le Ta PORATION | DRE oR cent ieee Nl poe OES Pee eel acc forare 24) eee cre fan crest cel | ereeree 
Sole ee Boxee alata o.0N|P 21.0 |) 457 0/ 9.3 | 64.0 Oi Ses 12h oo 13s Sil lOs 9.9 
BOOse acne SOmle lessee 2260|235. Gir 4a3 Overt. ORES ereRyace Ooh ATES ae, eens AE eval esses 
SOO ea eee S42 Ole SON 2a0) || 21.4 | 253 ee ee Rare 6262 TORS 7 Sn Oa Aa eer 
3710 ae ee te Jovor|pelaO, 2.0 \e2a-9) | 6. 8s Q0| 5.3 | 46.7 07 | 27853) 2: See S| Loh) eases 
Sse secs Saacaellecoaee 4,3.| 24.2 | 3.2 (Oe See nS oeies tear eas Sen MOE | ocrain ee lasers lene 
SUTitaSc carmen Ewer | peeteee| comb Alpe Elsie eh ta Ty RS fo ale | oA aed Ss 
CCA Re a etree 10.8| 7.6] 21.4] 8.0 Oy TOE RO Chest’ CES) eaeeee 15. 4 |! ee ees 
Dawn: 
SH) eee 29.0 | 14.4 | 29.3 |a34.9 | 29.6 Oe4e 7 585350 Sere Sed, | 16.2) 17.5: | So Shales 
White: 
CHS SROS hal eas 8.7 | 10.1 | 26.3 | 16.5 OF ala yia Ese hares BBs Delis Secor rea pe ctae| | Meetetere 
BYU 5S ae oes eee eee Ser 8.8 | 23.7 | 13.5 Di) Tees eevee Aa) sole eat sesh soolledaebollbcccos 
a Average yield from three plats. 
A study of the annual and average acre yields, as given in Table 
XX, is very interesting in the light of the summary of climatic 
conditions given previously. In two years, 1913 and 1916, abso- 
lutely no yields of grain were obtained. In three years the average 
